Author Topic: Probe Software Forum Newsletters  (Read 32399 times)

John Donovan

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Re: Probe Software Forum Newsletters
« Reply #30 on: September 25, 2020, 09:23:43 PM »
Here is the summer 2020 newsletter that was sent out to members a couple of weeks ago:

What a summer for everyone! Pandemic, hurricanes and forest fires here in the western US.  In celebration of the rain clearing some of the smoke, here is the Probe Software User Forum Summer newsletter.  The Probe Software user forum continues to be busy this summer with 11 new topics, 153 new posts and 66 new members since June 1. The forum totals currently stand at 8929 posts in 1120 topics by 573 members. Here are a few highlights from the last few months.

Mike Jercinovic and John Donovan had an interesting discussion on how analytical error relates to concentrations:

https://probesoftware.com/smf/index.php?topic=1307.0

Ben Buse and John Fellowes discuss how to capture video from optical microscopes and chamber scopes here:

https://probesoftware.com/smf/index.php?topic=1308.0

Some of us were able to watch the M&M virtual presentations in August, with some discussion here:

https://probesoftware.com/smf/index.php?topic=99.msg9372#msg9372

I would encourage any presenters on EPMA related topics to feel free to post links to their presentations on the user forum there. Here John Donovan provides an update to the WDS and JEOL EDS integration in Probe for EPMA:

https://probesoftware.com/smf/index.php?topic=1147.msg9374#msg9374

Jeff Chen started a topic on PictureSnapApp "testimonials" on the user forum here:

https://probesoftware.com/smf/index.php?topic=1309.0

If you enjoy using PictureSnapApp on your instrument, please feel free to post about your experience there.

Brian Joy asks about synthesis of PGE compounds here:

https://probesoftware.com/smf/index.php?topic=1310.0

Glenn Poirier provides some examples of using Probe for EPMA integrated with the JEOL EDS detector on his JEOL 8230:

https://probesoftware.com/smf/index.php?topic=79.msg9385#msg9385

Ben Wade shares some laser ablation measurements of the Smithsonian standards here (remember to log in to see attachments):

https://probesoftware.com/smf/index.php?topic=1227.msg9394#msg9394

Ben Garcia asked for (and received) a modification in PictureSnapApp to better navigate his samples on their Tescan SEM at PNNL:

https://probesoftware.com/smf/index.php?topic=14.msg9399#msg9399

Ben Wade and Mike Matthews asked for (and received) a modification to the documentation controls in the Standard application:

https://probesoftware.com/smf/index.php?topic=71.msg9409#msg9409

Michael Lance and Probeman discuss using various scan modes on inhomogeneous samples:

https://probesoftware.com/smf/index.php?topic=1311.0

Ben Wade and others discuss halide standards here:

https://probesoftware.com/smf/index.php?topic=1011.msg9417#msg9417

AnneF asks if there is a method to obtain a reliable 5 nm carbon coat thickness without a thickness monitor...

https://probesoftware.com/smf/index.php?topic=1313.0

John Donovan discusses using interpolated MAN backgrounds including interpolation with multi-point backgrounds (MPB):

https://probesoftware.com/smf/index.php?topic=987.msg9428#msg9428

This is related to the presentation that Phil Orlandini gave at M&M this summer.  Meanwhile Probeman shares some thoughts on remote teaching of instrument courses and labs:

https://probesoftware.com/smf/index.php?topic=837.msg9429#msg9429

John Donovan shares some thoughts on some recent remote training sessions with a customer:

https://probesoftware.com/smf/index.php?topic=1297.msg9439#msg9439

Crystalgrower comments on synthesis of various standard materials here:

https://probesoftware.com/smf/index.php?topic=1223.msg9440#msg9440

Brian Joy and SEM-geologist (and others) discuss detectors, instrument and temperature stability in the lab:

https://probesoftware.com/smf/index.php?topic=1109.msg9446#msg9446

John Donovan and Ben Wade discuss using duplicate elements on multiple spectrometers and "aggregate mode" in Probe for EPMA to improve elemental sensitivity:

https://probesoftware.com/smf/index.php?topic=155.msg8978#msg8978

Regards,
The Probe Software Users Forum Team.

https://probesoftware.com/smf/index.php
John J. Donovan, Pres. 
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John Donovan

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Re: Probe Software Forum Newsletters
« Reply #31 on: December 29, 2020, 08:56:46 AM »
Here is the Fall 2020 newsletter that was sent out to members a couple of weeks ago:

Hoping everyone is doing well and staying healthy. Here is the Probe Software User Forum Fall newsletter.  The Probe Software user forum continues to be busy this fall with 25 new topics and 193 new posts since September 1. Here are a few highlights from the last few months.

Kristian Drivenes and Benjamin Wade, Phillip Poeml and others discuss various standard materials and Astimix mounts:

https://probesoftware.com/smf/index.php?topic=1324.0

Michael Lance, Probeman, Benjamin Wade, Probe321 and others discuss EDS vs. WDS resolution:

https://probesoftware.com/smf/index.php?topic=1322.0

Brian Joy, John Donovan and others discuss various approaches to calculating H2O/OH by formula stoichiometry using matrix iteration techniques:

https://probesoftware.com/smf/index.php?topic=1323.0

Glenn Poirier, John Donovan and others discuss methods to acquire long narrow quantitative scans at arbitrary angles on large samples:

https://probesoftware.com/smf/index.php?topic=1326.0

Juvegre asks for help with some electrical/electronics issues with a JEOL 8900 but no one has responded with any advice so far:

https://probesoftware.com/smf/index.php?topic=1288.msg9535#msg9535

Ben Buse posts some ImageJ code and suggestions for manipulating x-ray map output:

https://probesoftware.com/smf/index.php?topic=799.msg9556#msg9556

Ben Buse, John Donovan, Joseph Shaw and Andrew Locock discuss subtleties of mineral formula recalculations:

https://probesoftware.com/smf/index.php?topic=1143.msg9558#msg9558

Ben Garcia points out an odd behavior of the JEOL EIKS interface when the mag is set to an arbitrarily high value:

https://probesoftware.com/smf/index.php?topic=1327.0

Quite a number of lab positions posted in the EPMA Positions Open topic:

https://probesoftware.com/smf/index.php?topic=3.msg8993#msg8993

Ben Buse starts another discussion on calculation of mineral formulas here:

https://probesoftware.com/smf/index.php?topic=1143.msg9558#msg9558

Mike Jercinovic asks about humidity control in analytical lab spaces:

https://probesoftware.com/smf/index.php?topic=1329.0

Dawn Ruth asks and Anette von der Handt replies on a question of maintaining lab cleanliness:

https://probesoftware.com/smf/index.php?topic=1330.0

John Fournelle asks about bremsstrahlung production from diamond and it's suitability as an MAN background calibration standard, and amazingly no one has responded yet:

https://probesoftware.com/smf/index.php?topic=1331.0

John Fournelle (as MAS archivist of MAS) asks for historical materials from the 1960s and onwards that document our field:

https://probesoftware.com/smf/index.php?topic=1332.0

Can anyone help him?

Meanwhile Ben Buse asks for values for sulphur in bcr2-g glass:

https://probesoftware.com/smf/index.php?topic=1333.0

John Donovan released full spectrum intensity files from Penepma 2012 (and Penepma 2016) for pure elements Li-Cm at 5, 10, 15, 20, 25 and 30 keV using 1 eV bins (40 hour simulation each):

https://probesoftware.com/smf/index.php?topic=202.msg9589#msg9589

These files are included in the Penepma distribution that is included with CalcZAF.

Ben Buse asked for (and received) a modification of the peak fitting routines in Probe for EPMA:

https://probesoftware.com/smf/index.php?topic=71.msg9590#msg9590

Mike Matthews asks for (and no one has responded yet) to a question about diamond wire saws:

https://probesoftware.com/smf/index.php?topic=1334.0

Anette von der Handt announces a new release of the ProbeLab ReImager software (written by Noah Kraft) for batch export of images from Thermo NSS/Pathfinder and JEOL PC-SEM softwares:

https://probesoftware.com/smf/index.php?topic=1335.0

John Fournelle announces the publication of a new EPMA review paper by Xavier Llovet, Aurelien Moy, Philippe Pinard and John Fournelle:

https://probesoftware.com/smf/index.php?topic=1336.0

Ben Garcia asks about transformation of points digitized in "other" apps (not PictureSnapApp):

https://probesoftware.com/smf/index.php?topic=1337.0

John Donovan responds with some questions and eventually a suggestion on utilizing the TestFid application that is distributed with CalcZAF.

Miss Boron asks for advice regarding a sudden outbreak of "bad totals" in their Peak Sight output and Mike Jercinovic and sem-geologist respond:

https://probesoftware.com/smf/index.php?topic=1338.0

John Donovan provides some additional documentation on the .POS file format utilized in Probe for EPMA and the TestFid position transformation methods:

https://probesoftware.com/smf/index.php?topic=46.msg9615#msg9615

And last, but certainly not least, Glenn Poirier posts a very nice "testimonial":

https://probesoftware.com/smf/index.php?topic=277.msg9617#msg9617

Hope everyone is healthy, staying safe and all looking forward to a happy holiday!
John J. Donovan, Pres. 
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John Donovan

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Re: Probe Software Forum Newsletters
« Reply #32 on: May 31, 2021, 05:27:52 PM »
Here is the Spring 2021 newsletter we sent out a week ago:

We just realized that we missed sending out a winter user forum newsletter this year! So with apologies, we'll skip right to the Probe Software User Forum Spring 2021 newsletter.  The Probe Software user forum continues to be busy this year with 36 new topics and 353 new posts since January 1st. Here are a few highlights from the last few months.

SEM Geologist discusses detector dead time on Cameca WDS instruments, with an emphasis on the various components that are included in the dead time process and subsequent correction:

https://probesoftware.com/smf/index.php?topic=33.msg9892#msg9892

Radek_MM re-starts a discussion on innovation and testing of EPMA instruments and is joined by John Donovan and Nicholas Ritchie and others:

https://probesoftware.com/smf/index.php?topic=193.msg9822#msg9822

John Donovan, Anette von der Handt, Dave Adams and others comment on stability of EPMA instruments and the apparent need to (sometimes) "try turning them off and on again"

https://probesoftware.com/smf/index.php?topic=1288.msg9859#msg9859

Pvonlant requests a new feature for DTSA-II and Nicholas Ritchie is there to help:

https://probesoftware.com/smf/index.php?topic=1371.0

John Donovan announces a new flag in the Probewin.ini file to prevent the JEOL 8230/8530 software from "freezing" some controls in the JEOL software after an acquisition is performed:

https://probesoftware.com/smf/index.php?topic=40.msg9910#msg9910

Jacob and others join in a discussion of flow detectors and counter efficiency:

https://probesoftware.com/smf/index.php?topic=193.msg9882#msg9882

Dave Adams and Probe321 discuss JEOL software versions:

https://probesoftware.com/smf/index.php?topic=1288.msg9926#msg9926

Jon Fellowes starts a discussion on using MAN background methods on samples with off-peak acquired elements, which culminates in a modification (bug fix?) to the Probe for EPMA source code:

https://probesoftware.com/smf/index.php?topic=4.msg9936#msg9936

SEM Geologist and Jon Wade discuss digital noise in Cameca instruments:

https://probesoftware.com/smf/index.php?topic=1304.msg9888#msg9888

This following post is worth reading if one wants to understand the subtleties of utilizing MAN background corrections on samples acquired using off-peak methods. John Donovan summarizes the two MAN/Off-Peak flags in the Analytical menu and how they can be applied:

https://probesoftware.com/smf/index.php?topic=4.msg9953#msg9953

SEM Geologist discusses tiff files and also shares his code for reading Cameca ImpDAT files:

https://probesoftware.com/smf/index.php?topic=1216.msg9956#msg9956

Dan Ruscitto asks for advice on analyzing Ar using EPMA and gets many responses:

https://probesoftware.com/smf/index.php?topic=1372.0

John Donovan reminds everyone that there is a very cute method to be sure that Probe for EPMA (for acquisition of standards) and Probe Image (for acquisition of x-ray maps) are utilizing the *exact* same analytical sample setup for obtaining quantitative X-ray maps.

https://probesoftware.com/smf/index.php?topic=937.msg9974#msg9974

Aurelien Moy announces a new forum board for discussion of the new BadgerFilm software for quantification of thin films using EPMA:

https://probesoftware.com/smf/index.php?topic=1373.0

Dirk Mueller asks about some peak artifacts he recently noticed when scanning the Al peak in Al2O3 and is joined by SEM geologist and Probeman:

https://probesoftware.com/smf/index.php?topic=1374.0

Glenn Poirier asks about using carnuba wax in the EPMA instrument:

https://probesoftware.com/smf/index.php?topic=1375.0

Finally Julien Allaz summaries a discussion with Mike Jercinovic and John Donovan on setting the PHA baseline and window values on JEOL and Cameca EPMA instruments:

https://probesoftware.com/smf/index.php?topic=1376.0

We hope everyone is healthy and vaccinated!  Can't wait to see you all in person someday!
John J. Donovan, Pres. 
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"Not Absolutely Certain, Yet Reliable"

John Donovan

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Re: Probe Software Forum Newsletters
« Reply #33 on: October 03, 2021, 09:03:33 AM »
Here is our summer 2021 newsletter that was sent out a week ago:

Here is our Probe Software User Forum Summer 2021 newsletter.  The Probe Software user forum continues to be busy this year with 20 new topics and 208 new posts since June 1st. Here are a few highlights from the last few months.

Esmrln and Probeman discuss mounting of Smithsonian standards:

https://probesoftware.com/smf/index.php?topic=172.msg10110#msg10110

CrystalGrower posts a short biography on John Rucklidge:

https://probesoftware.com/smf/index.php?topic=1383.0

John Donovan discusses how to simulate TDI effects in Probe for EPMA for teaching and also some improvements in simulating spectra for LDE/PC Bragg crystals:

https://probesoftware.com/smf/index.php?topic=837.msg10119#msg10119

John Donovan discusses a fix for Andrew Locock to allow the halogen correction for stoichiometric oxygen to be applied to an element calculated by stoichiometry:

https://probesoftware.com/smf/index.php?topic=92.msg10131#msg10131

Probeman posts a link to a Youtube video from Veritasium discussing single bit flips from cosmic rays and tells a story of the use of high threshold logic (originally designed to avoid this radiation damage in satellites) in the ARL SEMQ microprobe:

https://probesoftware.com/smf/index.php?topic=133.msg10138#msg10138

Probeman and Jacob discuss carbon contamination when measuring trace carbon in the EPMA:

https://probesoftware.com/smf/index.php?topic=646.msg10148#msg10148

Michael Lance asks about osmium standards and several join in a discussion:

https://probesoftware.com/smf/index.php?topic=1396.msg10152#msg10152

John Donovan announces Probe Software's newest expert EPMA consultant, Mike Matthews:

https://probesoftware.com/smf/index.php?topic=233.msg10164#msg10164

John Donovan discusses how to properly acquire TDI x-ray maps for beam sensitive samples (also for dealing with carbon contamination when measuring trace carbon) when also acquiring off-peak x-ray maps in Probe Image:

https://probesoftware.com/smf/index.php?topic=609.msg10167#msg10167

Brian Joy, John Donovan, Jon Fellowes and Probeman discuss the challenges of measuring trace vanadium in titanium rich matrics and the use of interference corrections and blank corrections:

https://probesoftware.com/smf/index.php?topic=1397.msg10169#msg10169

SEMGeologist, Probeman and Crystalgrower discuss standards for sulfur:

https://probesoftware.com/smf/index.php?topic=740.msg10168#msg10168

John Donovan gives short tutorial on how to correct TDI effects when quantifying x-ray maps for beam sensitive samples using CalcImage:

https://probesoftware.com/smf/index.php?topic=933.msg10185#msg10185

Gareth Seward made what we think is an excellent suggestion to add a "standard mount name" field to the standard database table. So we added it:

https://probesoftware.com/smf/index.php?topic=40.msg10190#msg10190

John Donovan and Brian Joy have fun discussing mass versus atomic number averaging in EPMA:

https://probesoftware.com/smf/index.php?topic=1221.msg10186#msg10186

We hope everyone is healthy and vaccinated!  Still can't wait to see you all in person someday!

Regards,
The Probe Software Users Forum Team.
John J. Donovan, Pres. 
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John Donovan

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Re: Probe Software Forum Newsletters
« Reply #34 on: December 23, 2021, 10:58:40 AM »
This is the fall 2021 newsletter sent out about a week ago...

Hi all,

The Probe Software user forum has been busy this fall, with over 21 new topics and over 277 new posts just since Sept 1. The forum totals currently stand at 9835 Posts in 1210 Topics by 696 Members... here are some recent highlights...

Of course the Open Letter to the MicroAnalysis Community was the big topic this season:

https://probesoftware.com/smf/index.php?topic=1415.0

If you haven't seen this letter yet please read it, comment and *please* offer to participate in this endeavor. We need "all hands on deck" as an international community in order to identify, locate and procure these synthetic standard materials in quantities sufficient for global distribution.

Some of you (Will Nachlas, John Fournelle, Aurelien Moy, Nicholas Ritchie, Dawn Ruth and others) have already been contacting industrial/commercial producers of synthetic minerals and have gotten quotations. Thank-you, this is useful information for subsequent planning!  But we need more volunteers to contact people in government/state laboratories, especially in Russia and China, who (I've been told) may have such materials stashed away and "ours for the asking".

If you do begin such investigations (treasure hunt?), and obtain information leading to the location of suitable synthetic minerals, please post your discovery to this topic and contact Will Nachlas at the address/email found in this post:

https://probesoftware.com/smf/index.php?topic=1415.msg10368#msg10368

Meanwhile, others such as Crystal Grower, suggest other possible candidates for synthetic mineral standards such as MgSiO3:

https://probesoftware.com/smf/index.php?topic=1405.msg10308#msg10308

We appreciate all suggestions and even better, possible sources for obtaining such materials! And related to the above is the discussion on the accuracy of inter-laboratory measurements discussed in this topic on cpx/opx barometer accuracy, where sem-geologist and Dave Adams discuss Na standards:

https://probesoftware.com/smf/index.php?topic=1404.msg10310#msg10310

On another topic, Probeman points out the importance of including coating corrections especially for quant mapping, especially when ones standards are carbon coated, but the unknowns are not (even for energetic emission lines like Fe Ka):

https://probesoftware.com/smf/index.php?topic=1407.msg10313#msg10313

Axel Wittmann asks for help and Nicholas Ritchie responds with analyzing sub micron grains of NiP separated from meteorites:

https://probesoftware.com/smf/index.php?topic=1408.0

A paper by Donovan, Allaz, von der Handt, Seward, Neill, Goemann, Chouinard, and Carpenter on quantitative WDS mapping came out this fall:

https://probesoftware.com/smf/index.php?topic=1212.msg10330#msg10330

It's a long paper but worth a read if you also would like to produce fully quantitative WDS elemental maps yourself. Remember: treat your pixels, just like your points!

John Donovan points out the importance of using sufficiently "hot" conditions for quant x-ray mapping, in order to obtain reasonable statistics in your quant maps:

https://probesoftware.com/smf/index.php?topic=73.msg10336#msg10336

Probeman discusses the effects of the matrix correction on trace vs. minor elements:

https://probesoftware.com/smf/index.php?topic=92.msg10342#msg10342

And for light elements such as fluorine, these matrix effects of unanalyzed elements can become quite large, as discussed here:

https://probesoftware.com/smf/index.php?topic=92.msg10136#msg10136

The actual GUI options in Probe for EPMA are discussed here for elements calculated by stoichiometry to stoichiometrically calculated oxygen:

https://probesoftware.com/smf/index.php?topic=92.msg10131#msg10131

A discussion on the detection limits calculations for multi-point backgrounds (MPB) elements is here:

https://probesoftware.com/smf/index.php?topic=1293.msg10343#msg10343

Since the calculation of detection limits depends not only on the peak intensity, but also the background intensities, obviously the MPB detection limit calculation is depends on the "Iterate To" parameter specified for MPB elements. Note this parameter can be modified for off-line processing in Probe for EPMA.

We added a new "Acquisition Options" button in the "Basic EPMA" window as shown here:

https://probesoftware.com/smf/index.php?topic=71.msg10344#msg10344

for beginners and casual users of the software, as suggested by Anette von der Handt.

Anette von der Handt also pointed out a handy feature that some may not be aware of, for acquiring a different number of standard points per standard in the Probe for EPMA Automate! window:

https://probesoftware.com/smf/index.php?topic=71.msg10345#msg10345

The latest Penepma (pure element) simulations now include modeling up to 30 keV.

https://probesoftware.com/smf/index.php?topic=837.msg10346#msg10346

To update to the latest Penepma simulation files, see this link:

https://probesoftware.com/smf/index.php?topic=202.msg9589#msg9589

When one uses the Combine Data Lines From Selected Samples button in the Analyze! window, new code now utilizes the EDS spectra for quantified EDS elements:

https://probesoftware.com/smf/index.php?topic=8.msg10349#msg10349

Phil Orlandini is brainstorming on creating a "hybrid" microanalysis instrument:

https://probesoftware.com/smf/index.php?topic=1410.0

Got some ideas? Please chime in!

A while back we added additional modeling to simulate the "polygonization tail" effects in WDS Bragg crystals:

https://probesoftware.com/smf/index.php?topic=40.msg10357#msg10357

But it does take a bit more time, so we have made it an "option" for our "demo" mode when used for teaching.

Probeman's new favorite color palette:

https://probesoftware.com/smf/index.php?topic=1003.msg10358#msg10358

Just kidding!  A new "history of Cameca" topic has been made:

https://probesoftware.com/smf/index.php?topic=1412.msg10359#msg10359

Have any stories from the "olden days"? Please feel free to contribute.

Probeman responds to comments from Jon Wade and SEM_geologist on the proposal to create global microanalyssi standards using high purity synthetic minerals:

https://probesoftware.com/smf/index.php?topic=1415.msg10377#msg10377

Here is a post on the Google spreadsheet created by Nicholas Ritchie to document the availability of synthetic mineral standards:

https://probesoftware.com/smf/index.php?topic=1415.msg10382#msg10382

Anette von der Handt made a wish that there could be some sort of "zoom" feature in the Pixel Extraction window in CalcImage:

https://probesoftware.com/smf/index.php?topic=249.msg10383#msg10383

This latest code modification should work we think.

Brian Joy and Changkun park discuss changes in peak shape over time from PET crystals on JEOL instruments:

https://probesoftware.com/smf/index.php?topic=854.msg10388#msg10388

Probeman asks about gun align failures at higher beam energies and sem-geologists responds:

https://probesoftware.com/smf/index.php?topic=1416.msg10396#msg10396

New keywords have been added to the [Image] section of the Probewin.ini file to specify the default image size and default image acquisition channel:

https://probesoftware.com/smf/index.php?topic=40.msg10404#msg10404

Axel Wittmann announces a new geoanalysis conference in Freiberg, next August (2022):

https://probesoftware.com/smf/index.php?topic=99.msg10411#msg10411
That's all for now. Looking forward to the holidays and in the northern hemisphere we're getting close to the longest nights of the year, so I at least am also looking forward to the coming spring! Hoping you all are well and staying safe.

Regards,
The Probe Software Users Forum Team.

https://probesoftware.com/smf/index.php
« Last Edit: December 23, 2021, 12:56:19 PM by John Donovan »
John J. Donovan, Pres. 
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Re: Probe Software Forum Newsletters
« Reply #35 on: January 04, 2022, 12:59:25 PM »
Hi all,

This is the third in our "new features" newsletters, written to highlight improvements to the CalcZAF and Probe for EPMA software. We've been asked by several customers and forum users that an occasional newsletter of this type would be helpful in getting a summary of these software changes. The point often mentioned is that while there are many improvements to the software, they sometimes get "buried" in the normal forum activity.

Remember you can update your CalcZAF and/or Probe for EPMA software any time for free from the Help menu to get these latest new features. For a complete listing of all changes to the software, please see the version.txt file that is provided with each update of the software.  It is also posted to the forum here:

https://probesoftware.com/smf/index.php?topic=40.0

02/16/20    Work on increasing MPB arrays from 12 to 18 to deal with more than 6 "shared" bgd elements per spectrometer (Jercinovic and Williams).
v. 12.8.4

02/13/20    Add new button/code to allow assigning current shared channel fit parameters and manual flags to all
v. 12.8.3     other shared channels. That is, other elements on same spectrometer and crystal (Williams and Jercinovic).

https://probesoftware.com/smf/index.php?topic=9.msg9043#msg9043

02/28/20    Add automated imaging in PFE when using confirm positions only (Goemann).

                    This feature allows one to acquire automated images, even when only "confirming" stage positions from the Automate! window.

03/05/20    Allow user to edit number of points to skip in plot TDI curves for CalcImage TDI plots. Modify Output Sample parameters
                    to utilize middle pixel (rather than first pixel) in CalcImage (Allaz).

03/06/20    Modify Bruker, JEOL and Demo EDS get net intensity code to allow for sensitivity calculations by returning "off-peak" bgd count times (Hanson).

03/11/20    Add load and output to Surfer for TDI correction percents (Allaz).

https://probesoftware.com/smf/index.php?topic=912.msg9110#msg9110

This feature allows the user to visualize the time dependent intensity (TDI) corrections for each pixel in quantitative x-ray maps.

04/19/20    Modify CalcImage Align and Crop feature to support PrbImg files (in addition to GRD files) (Fellowes).

https://probesoftware.com/smf/index.php?topic=1152.msg9177#msg9177

This feature can be useful when one needs to perform the align and crop *before* converting the PrbImg files to GRD files for subsequent quantification in CalcImage. This could be useful when performing replicate TDI acquisitions and there is sample drift from one TDI replicate to the other.

01/23/21    Modify TDI code to handle Nth point with zero time fraction (Allaz). This is because with zero time fraction, there is no on-peak data for the                      first of Nth points. See:

https://probesoftware.com/smf/index.php?topic=40.msg9686#msg9686

This is a slightly complicated topic because of the subtle way in which the TDI and Nth point features interact. See above link for full details.

06/29/21        Add Moy et al, 2021 Z Fraction exponent calculation button to Assign MAN dialog
                         and improve code for updating MAN fit display.

https://probesoftware.com/smf/index.php?topic=4.msg10036#msg10036

07/20/21    Add Aurelien Moy code for Droop method for amphiboles (still testing).
v. 12.9.7
                    Aurelien and I would appreciate any comments on this new amphibole code. See the calcic and sodic amphibole options for calculating                             excess oxygen from ferric/ferrous iron ratios in the Calculation Options dialog in Probe for EPMA (and CalcZAF).

08/13/21        Add new keyword to Probewin.ini to specify which WMF image file to load as default when StageMap form loads.

https://probesoftware.com/smf/index.php?topic=40.msg10107#msg10107

09/18/21         Add new standard database field for standard mount name(s) (Seward).
v. 12.9.8 

10/08/21    Add UnknownIsStandard option in Calculate Options dialog (Ruth, Fellowes, Orlandini).
v. 12.9.9

https://probesoftware.com/smf/index.php?topic=71.msg10257#msg10257

11/07/21    Add Acquisition Options button to Basic EPMA form (von der Handt).

https://probesoftware.com/smf/index.php?topic=71.msg10344#msg10344

11/13/21    Add "expansion" feature to Extract Polygon window in CalcImage for working with small images (von der Handt).

https://probesoftware.com/smf/index.php?topic=249.msg10383#msg10383

This feature allows one to load quant x-ray maps for pixel extract at 2x, 3x and 4x normal size for better visibility.

We hope you all find these new features useful and Happy New Year to all.

Regards,
The Probe Software Users Forum Team.

https://probesoftware.com/smf/index.php
John J. Donovan, Pres. 
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"Not Absolutely Certain, Yet Reliable"

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Re: Probe Software Forum Newsletters
« Reply #36 on: April 03, 2022, 12:11:10 PM »
Here is the Spring 2022 forum newsletter that went out a couple of weeks ago:

 Hi all,

The Probe Software user forum has been surprisingly busy all winter, with over 25 new topics and over 238 new posts and 27 new members since Dec 1st. The forum totals currently stand at 9936 Posts in 1232 Topics by 713 Members... here are some recent highlights...

Sander has questions about plotting phi-rho-z curves. Brian Joy, Probeman and Nicholas Ritchie respond.  Sem-geologist asks about the xphi correction of Merlet:

https://probesoftware.com/smf/index.php?topic=1070.msg10502#msg10502

John Donovan describes new options for outputting formula units for non-analyzed elements from quantitative mapping, e.g., carbon in carbonates, followed by a discussion of output of quant maps for excess oxygen (from say ferric iron), not only when measuring oxygen, but also when utilizing the excess oxygen from ferric iron using the method of Droop via charge balance:

https://probesoftware.com/smf/index.php?topic=41.msg10494#msg10494

This is followed by Probeman looking at TDI effects when performing quant mapping on apatite:

https://probesoftware.com/smf/index.php?topic=41.msg10532#msg10532

Brian Joy is "getting aggressive" with units once again:

https://probesoftware.com/smf/index.php?topic=1430.msg10536#msg10536

Rom asks about integrated intensity scans for quant analysis in Probe for EPMA and Probeman tries to help:

https://probesoftware.com/smf/index.php?topic=1429.0

Some recent job listings in EPMA:

https://probesoftware.com/smf/index.php?topic=3.msg10539#msg10539

John Donovan notes that the mapping acquisition time in Probe Image is now displayed when running Probe Image from within Probe for EPMA (why wasn't this done before!):

https://probesoftware.com/smf/index.php?topic=40.msg10542#msg10542

John Donovan notes a cool trick that one can utilize to import stage calibrated images from other applications:

https://probesoftware.com/smf/index.php?topic=8.msg10546#msg10546

Sem-geologist attempts to reverse engineer some Cameca binary data files:

https://probesoftware.com/smf/index.php?topic=1377.msg10521#msg10521

Rom asks and John Donovan answers a question of the spectral interference correction:

https://probesoftware.com/smf/index.php?topic=626.msg10548#msg10548

Probeman again asks for help with vacuum/electronics "glitches" that shut down the ion pump:

https://probesoftware.com/smf/index.php?topic=886.msg10555#msg10555

John Donovan briefly discusses how Probe for EPMA handles different units for JEOL and Cameca spectrometers (off-line question):

https://probesoftware.com/smf/index.php?topic=1432.msg10558#msg10558

EUGEN asks for help designing a new 3 axis stage for his LIBS instrument:

https://probesoftware.com/smf/index.php?topic=1434.msg10570#msg10570

Probeman discusses some recent successes in testing high purity simple oxides (MgO, Al2O3 and SiO2) as primary standards for analysis of other silicates and oxides:

https://probesoftware.com/smf/index.php?topic=1415.msg10574#msg10574

Probeman thought this was funny (but he's a strange guy and yes, he owns a cat):

https://probesoftware.com/smf/index.php?topic=348.msg10575#msg10575

Orlandin asks about a Promethium standard and as Crystalgrower points out, Probeman manages to confuse that with Pr!  But the advice to utilize the "Virtual Standard" feature in Probe for EPMA still applies:

https://probesoftware.com/smf/index.php?topic=1435.0

Probe Software now notes non-standard EDS systems on their EPMA customer list. If your instrument contains a non-standard EDS system, and it is not listed, please contact us by email:

https://probesoftware.com/smf/index.php?topic=245.msg10579#msg10579

Julien asks about aging of sealed Xe detectors and Probeman, Karsten Goemann and Brian Joy respond:

https://probesoftware.com/smf/index.php?topic=1436.0

Rom asks about PHA settings for "WS". Sem-geologist responds while Probeman confuses WS for "wavelength spectrometer", when apparently Rom meant "wave scan" Agreement is had once the confusion is cleared up:

https://probesoftware.com/smf/index.php?topic=1437.0

Juvegre announces the Athen (virtual) EPMA workshop (Probeman will be "there"):

https://probesoftware.com/smf/index.php?topic=99.msg10596#msg10596

Donggao Zhao asks about the calculation of mean atomic number and Probeman responds:

https://probesoftware.com/smf/index.php?topic=1438.0

Dominique asks about an iron carbide standard:

https://probesoftware.com/smf/index.php?topic=1439.0

John Fournelle is asking about information on some garnet standards in their collection:

https://probesoftware.com/smf/index.php?topic=408.msg10613#msg10613

Dan Ruscitto asks if anyone has tested the JEOL EDS system for accuracy:

https://probesoftware.com/smf/index.php?topic=79.msg10621#msg10621

Probeman just can't stop with the science jokes:

https://probesoftware.com/smf/index.php?topic=348.msg10628#msg10628

Probeman discusses the importance of proper dead time calibrations for accurate EPMA and Brian Joy and sem-geologist respond:

https://probesoftware.com/smf/index.php?topic=1160.msg10640#msg10640

John Donovan starts a new topic to discuss the FIGMAS k-ratio consensus measurements which is related to the effort to obtain high purity synthetic silicates and oxides and the effects of poor dead time calibrations on these k-ratios and Nicholas Ritchie and crystalgrower respond:

https://probesoftware.com/smf/index.php?topic=1442.0

That's all for now. Looking forward to spring (in the northern hemisphere). Hoping you all are well and staying safe.

Regards,
The Probe Software Users Forum Team.
John J. Donovan, Pres. 
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"Not Absolutely Certain, Yet Reliable"

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Re: Probe Software Forum Newsletters
« Reply #37 on: October 16, 2022, 01:00:25 PM »
Here is the summer 2022 newsletter that went out a couple of weeks ago to members:

Hi all,

The Probe Software user forum has been very busy all summer, with over 19 new topics and over 370 new posts and 11 new members since June 1st. The forum totals currently stand at 10514 (!) Posts in 1259 Topics by 735 Members... here are some recent highlights.

The big topic this summer has been the discussion primarily between Probeman, Brian Joy and SEM-Geologist (with supporting data from Anette von der Handt and James Maner) regarding the sources of and correction for dead time effects for WDS spectrometers. This all began when Probeman started looking at EPMA instrument performance using a new method for calibration of spectrometer dead times and picoammeter linearity, i.e., using the "constant k-ratio" method (with John Fournelle). Basically this new method tests the assumption that the measured k-ratios of two materials (measured at the same beam currents) containing significantly different concentrations of an element, should remain constant over a large range of beam currents (count rates), if the instrument dead times are properly calibrated. And that the same data set, when calculated using a single primary standard at a single beam current, can also reveal any non-linearity of the picoammeter.

This topic started early in the summer but if you'd like to get caught up quickly, it's probably best to start with this post and keep reading the subsequent posts:

https://probesoftware.com/smf/index.php?topic=1466.msg11102#msg11102

This discussion continued in parallel with a new topic started by Brian Joy here entitled "Generalized dead times":

https://probesoftware.com/smf/index.php?topic=1489.0

While we are still evaluating data from multiple instruments, the upshot from what we can tell is that the traditional (linear) dead time expression (Ruark, 1937) starts failing at count rates above ~50K cps, so we clearly need a better dead time model, especially for modern instruments with large area Bragg crystals. Then Probeman and Aurelien Moy came up with a new logarithmic (non-linear) expression seems to work well at count rates up to ~200K cps and possibly higher. Meanwhile Brian Joy found another non-linear (exponential) expression from the literature (Schiff, 1936), that is also very interesting, but requires an iterative solution (probably the reason it was never utilized previously) and also fails mathematically at relatively moderate count rates when utilizing dead times of ~3 usec or more.

https://probesoftware.com/smf/index.php?topic=1489.msg11258#msg11258

In fact there appears to be a suggestion that perhaps the exponential expression is best utilized on JEOL spectrometers where there appears to be some evidence of extending dead time effects, while the logarithmic expression is better utilized on Cameca spectrometers with its "enforced" dead time electronics.  But the jury is still out, so we await further discussion and data from other instruments. But one result is that now all of these expressions can be utilized in Probe for EPMA as discussed here:

https://probesoftware.com/smf/index.php?topic=40.msg11255#msg11255

Finally it should also be noted that the constant k-ratio method can also be utilized to check that all ones spectrometers produce k-ratios that are consistent with one another as presented by James Maner:

https://probesoftware.com/smf/index.php?topic=1466.msg11238#msg11238

Have you checked your spectrometers using the constant k-ratio method?  Be sure to be sure that your PHA shifting (pulse height depression) stays within range when acquiring intensity data over such large ranges of count rates as pointed out by Probeman:

https://probesoftware.com/smf/index.php?topic=1466.msg11247#msg11247

On other topics, Dave Adams asks about specifying excess oxygen in glasses and Andrew Locock and Probeman respond:

https://probesoftware.com/smf/index.php?topic=92.msg11157#msg11157

Rom asks about seeing intensities from multiple MAN datasets and Anette von der Handt and Probeman respond:

https://probesoftware.com/smf/index.php?topic=4.msg11160#msg11160

Karsten Goemann wrote up a nice short tutorial on calibrating images in Probe for EPMA:

https://probesoftware.com/smf/index.php?topic=329.msg11194#msg11194

There is also recent discussion regarding the use of the "interpolated" off-peak MAN method, where one utilizes off-peak standards to create MAN calibration curves for unknown samples, seen here:

https://probesoftware.com/smf/index.php?topic=987.msg10956#msg10956

First some questions from Rom about the MAN absorption correction, then a bug report from JonF when using multi-point background acquisitions (MPB) for these interpolated MAN curves, and a fix from John Donovan, followed by some suggestions to Rom on practical limits of the MAN method when utilizing (interpolated off-peak) standards containing major concentrations of the element in question:

https://probesoftware.com/smf/index.php?topic=987.msg11227#msg11227

Please note that one can now plot (or export) raw count rates (not dead time corrected or beam current normalized) from the Output Standard and Unknown XY Plots dialog as noted by Probeman:

https://probesoftware.com/smf/index.php?topic=1466.msg11248#msg11248

John Donovan also notes that Probe for EPMA now outputs the dead time constant (DEAD:) for each element and also the dead time correction percentage (DTC%:):

https://probesoftware.com/smf/index.php?topic=40.msg11257#msg11257

Probeman makes a joke about instrumental sensitivity here:

https://probesoftware.com/smf/index.php?topic=133.msg11261#msg11261

Probeman makes a suggestion that, when performing consensus k-ratio measurements (after proper dead time calibration of one's instrument!) on the FIGMAS standard mounts from Nachlas and Moy, we measure our k-ratios at multiple electron beam energies:

https://probesoftware.com/smf/index.php?topic=1442.msg11268#msg11268

Probeman and SEM Geologist continue to discuss JEOL and Cameca PHA and count rates:

https://probesoftware.com/smf/index.php?topic=1489.msg11277#msg11277

Rom has more questions about the (interpolated) MAN background method, particularly absorption corrections for oxygen:

https://probesoftware.com/smf/index.php?topic=987.msg11278#msg11278

Probeman and SEM Geologist get "further into the weeds" regarding PHA, electronics, and temperature control effects:

https://probesoftware.com/smf/index.php?topic=987.msg11278#msg11278

SEM Geologist performs some modeling/simulation of PHA electronics:

https://probesoftware.com/smf/index.php?topic=1489.msg11307#msg11307

Probeman discusses some recent measurements of PHA and constant k-ratios on his SX100 using a minimal (integer) "enforced" dead time value of 1 msec:

https://probesoftware.com/smf/index.php?topic=1466.msg11309#msg11309

Regards,
The Probe Software Users Forum Team.

https://probesoftware.com/smf/index.php
John J. Donovan, Pres. 
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"Not Absolutely Certain, Yet Reliable"

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Re: Probe Software Forum Newsletters
« Reply #38 on: January 06, 2023, 11:33:49 AM »
Here is the Fall 2022 newsletter that went out about a week ago:

Hi all,

The Probe Software user forum has been busy this fall, with over 7 new topics and over 190 new posts and 18 new members since October 1st. The forum totals currently stand at 10693 Posts in 1265 Topics by 743 Members... here are some recent highlights.

Andrew Locock started a discussion asking "what are the *downsides* to owning a FEG EPMA instrument?", and Anette von der Handt, Probeman and SEM-Geologist responded:

https://probesoftware.com/smf/index.php?topic=1360.msg11379#msg11379

Probeman and SEM-Geologist continue their discussion regarding the constant k-ratio method including picoammeter linearity testing:

https://probesoftware.com/smf/index.php?topic=1466.msg11324#msg11324

Also a discussion for possible correction of systematic differences in effective take-off angle for WDS spectometers (asked by Entoptics):

https://probesoftware.com/smf/index.php?topic=1466.msg11329#msg11329

And most critically also a discussion of the importance of properly optimized PHA settings, for not only the constant k-ratio method, but also quantitative WDS in general:

https://probesoftware.com/smf/index.php?topic=1466.msg11352#msg11352

Probeman and SEM Geologist continue discussions regarding the pulse processing electronics:

https://probesoftware.com/smf/index.php?topic=1466.msg11395#msg11395

and what non-linear effects might be introduced by the pulse processing electronics from non-ideal pulse shapes or pulse processor response:

https://probesoftware.com/smf/index.php?topic=1466.msg11400#msg11400

as SEM Geologist speculates that WDS dead times are extending at sufficiently high count rates. Probeman then asks what other non-linear effects could be causing these subtle (< 1%) "squiggles" in the constant k-ratio data:

https://probesoftware.com/smf/index.php?topic=1466.msg11416#msg11416

SEM-Geologist and Brian Joy continue their discussions of pulse processing electronic/schematic details:

https://probesoftware.com/smf/index.php?topic=1493.msg11399#msg11399

A small but useful feature was implemented in Probe for EPMA allowing one to temporarily disable the EDS interface if one is not intending to utilize it, when opening the Acquisition Options dialog from the Acquire! window:

https://probesoftware.com/smf/index.php?topic=40.msg11401#msg11401

Philipp Poeml announces the EMAS 2023 workshop:

https://probesoftware.com/smf/index.php?topic=99.msg11403#msg11403

Probe Software is pleased to announce that the JEOL MEC EDS interface (for iSP100 and iHP200F instruments) is now implemented in Probe for EPMA for integrated quantitative WDS and EDS using standards:

https://probesoftware.com/smf/index.php?topic=230.msg11410#msg11410

The eternal struggle to separate software problems from hardware problems:

https://probesoftware.com/smf/index.php?topic=1394.msg11418#msg11418

Life may have started in minerals:

https://probesoftware.com/smf/index.php?topic=133.msg11427#msg11427

Probe for EPMA is now running at Los Alamos National Lab and Sandia National Lab on JEOL instruments:

https://probesoftware.com/Customer.html

Anette von der Handt posts this information on EPMA history at the request of a new forum member:

https://probesoftware.com/smf/index.php?topic=924.msg11435#msg11435

How to handle elements disabled for quantification in STRATAGem when exporting from Probe for EPMA:

https://probesoftware.com/smf/index.php?topic=502.msg11439#msg11439

In a new topic Rom asks how can one automate the measurement of the same elements at different conditions in Probe for EPMA and John Donovan responds:

https://probesoftware.com/smf/index.php?topic=1498.0

Another question from Rom on transferring ones configuration and standard compositions, to an off-line computer for data re-processing (and teaching!). Remember, Probe Software allows all users of the software to install Probe for EPMA on as many computers as desired, for off-line data re-processing:

https://probesoftware.com/smf/index.php?topic=1499.0

EPMA Christmas humor from Anette:

https://probesoftware.com/smf/index.php?topic=348.msg11451#msg11451

Some thermal "heat maps" from Anette of her JEOL iHP200F instrument:

https://probesoftware.com/smf/index.php?topic=1500.msg11452#msg11452

A very interesting study by Anette on the effects of adjusting PHA bias and gain on her JEOL instrument:

https://probesoftware.com/smf/index.php?topic=1475.msg11454#msg11454

Probeman again points out the importance of adjusting one's PHA settings at the highest count rates expected, for proper quantitative analysis:

https://probesoftware.com/smf/index.php?topic=1466.msg11450#msg11450

SEM-Geologist and Probeman continue discussing photon coincidence and Monte Carlo modeling of, because it appears that the traditional dead time expression properly corrects for not only the case of single photon coincidence (an incident photon and another coincident photon), but also multiple photon coincidence (an incident photon and multiple coincident photons)!  Hence the logarithmic expression *must* be correcting for observed non-linear effects at higher count rates (> ~50 kcps), probably due to the behavior of our pulse processing electronics.

https://probesoftware.com/smf/index.php?topic=1466.msg11465#msg11465

Aurelein Moy posts a nice explanation and flow chart of his Monte Carlo code for modeling dead time here justifying these conclusions:

https://probesoftware.com/smf/index.php?topic=1466.msg11473#msg11473

And here, a nice "fall" spectrum from the offices of Probe Software:

https://probesoftware.com/smf/index.php?topic=1003.msg11397#msg11397

And finally some amazing colorized SEM images of forest soils and their microscopic inhabitants:

https://probesoftware.com/smf/index.php?topic=133.msg11496#msg11496

OK, last but not least, Probeman creates topic on new mineral discoveries with an CNN article about two new mineral species identified by Andrew Locock:

https://probesoftware.com/smf/index.php?topic=1501.msg11497#msg11497

Regards,
The Probe Software Users Forum Team.
John J. Donovan, Pres. 
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"Not Absolutely Certain, Yet Reliable"

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Re: Probe Software Forum Newsletters
« Reply #39 on: April 07, 2023, 01:07:03 PM »
Here is the Winter 2022 newsletter that went out about a week ago:

Hi all,

The Probe Software user forum has been busy this winter season, with over 15 new topics and over 118 new posts and 11 new members since January 1st. The forum totals currently stand at 10911 Posts in 1281 Topics by 755 Members... here are some recent highlights.

Glenn and Julien gave advice to Ansaheric on how to export JEOL raw map data:

https://probesoftware.com/smf/index.php?topic=1507.0

Dave C is looking for a synthetic Mn standard:

https://probesoftware.com/smf/index.php?topic=1508.0

Anette von der Handt wished for a button to export all EDS spectra from Probe for EPMA into the EDS OEM format. And her wish was granted!

https://probesoftware.com/smf/index.php?topic=71.msg11625#msg11625

Andrew Locock asks for a procedure for calculating empirical mass absorption coefficients along the lines of XMAC using Aurelien Moy's BadgerFilm software and several members reply:

https://probesoftware.com/smf/index.php?topic=1340.msg11626#msg11626

John Donovan reported some results for quantitative  maps and acquiring major and trace elements at high (200 nA) beam currents (next it needs to be tried at 400 nA!):

https://probesoftware.com/smf/index.php?topic=1466.msg11629#msg11629

And in the next post adds some thoughts on pulse height depression at these high beam currents for high concentration elements:

https://probesoftware.com/smf/index.php?topic=1466.msg11636#msg11636

SEM-Geologist discusses very high (1000 nA) beam currents and Bragg crystal damage:

https://probesoftware.com/smf/index.php?topic=18.msg11630#msg11630

John Donovan asks about back issues of the Microbeam Analysis journal that are not available digitally and Will Nachlas and Nicholas Ritchie respond:

https://probesoftware.com/smf/index.php?topic=1502.msg11513#msg11513

Max Gavrilenko posts his new paper on correction of secondary boundary fluorescence effects for hemispherical olivine grains:

https://probesoftware.com/smf/index.php?topic=58.msg11639#msg11639

John Donovan discusses some recent modifications in the "alternative" z-bar calculations in the Standard application:

https://probesoftware.com/smf/index.php?topic=1111.msg11640#msg11640

Mike Jercinovic asks for advice on buying a 'decent" carbon coater:

https://probesoftware.com/smf/index.php?topic=1509.0

John Donovan posts about a tweak to the Locock amphibole output in Probe for EPMA that can now handle duplicate elements in aggregate mode when exporting to Excel:

https://probesoftware.com/smf/index.php?topic=155.msg11642#msg11642

Probeman posts an example of a color palette worse than the "rainbow":

https://probesoftware.com/smf/index.php?topic=1003.msg11647#msg11647

Julien Allaz asked ChatGPT what it thinks about Probe for EPMA:

https://probesoftware.com/smf/index.php?topic=233.msg11650#msg11650

Dawncruth asked if both faraday currents measured in PFE could be displayed in the Analyze! window, so check if her wish was granted:

https://probesoftware.com/smf/index.php?topic=71.msg11651#msg11651

JonF asked for code to create GRD files as used by Surfer and CalcImage and Probeman replied:

https://probesoftware.com/smf/index.php?topic=1510.msg11659#msg11659

Julien Allaz and Stefan Pitch asked if would be possible to implement a correction for sulfur as an anion and have the oxygen equivalent subtracted during the matrix correction and John Donovan responds:

https://probesoftware.com/smf/index.php?topic=1247.msg11664#msg11664

The latest Probe Image now automatically preserves the image center when the user switches from centered x-ray maps mode to 2 point x-ray map mode and also handles when the number of pixels does not divide equally into the X and Y stage dimensions:

https://probesoftware.com/smf/index.php?topic=117.msg11667#msg11667

Anette vonder Handt posts some warnings about JEOL bi-directional mapping makes some other map processing requests which we are working on:

https://probesoftware.com/smf/index.php?topic=247.msg11668#msg11668

One of Probeman's favorite Youtube channels:

https://probesoftware.com/smf/index.php?topic=133.msg11673#msg11673

Miss_Boron asks and JonF responds to problems with a carbon coater:

https://probesoftware.com/smf/index.php?topic=1511.0

Ben Buse asks about new compounds for boundary fluorescence modeling and values for oscillator strength and energy:

https://probesoftware.com/smf/index.php?topic=58.msg11678#msg11678

Rom asks about the ROM peaking method in Probe for EPMA:

https://probesoftware.com/smf/index.php?topic=58.msg11678#msg11678

Rom asks general questions about using duplicate elements in PFE:

https://probesoftware.com/smf/index.php?topic=155.msg11684#msg11684

Ara asks for help on her Noran EDS system and Steve Seddio responds:

https://probesoftware.com/smf/index.php?topic=1515.msg11693#msg11693

Nicholas Ritchie posts about the upcoming Lehigh microscopy courses:

https://probesoftware.com/smf/index.php?topic=1516.msg11696#msg11696

Rom is struggling with trying to measure the Fe content in some Fe2O3 standards using an Fe metal primary standard and not getting what he expects. John Donovan has some suggestions, but can anyone else help him? Has anyone else tried this measurement and gotten reasonable results?

https://probesoftware.com/smf/index.php?topic=1423.msg11701#msg11701

New mineral:

https://probesoftware.com/smf/index.php?topic=133.msg11712#msg11712

Dominik wants to create an on-line resource of EPMA (and SEM) software tools, and would like to have discussions with others who have similar interests:

https://probesoftware.com/smf/index.php?topic=1518.0

Probeman discusses the differences between absorption edges and "negative peaks" in WDS spectra:

https://probesoftware.com/smf/index.php?topic=29.msg11720#msg11720
John J. Donovan, Pres. 
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Re: Probe Software Forum Newsletters
« Reply #40 on: August 06, 2023, 07:52:45 PM »
We sent this spring newsletter out a month or so ago, but we got distracted by M&M, so here it is:

Hi all,

Sorry for the lateness of this newsletter but the Probe Software user forum has been really busy this spring season, with over 20 new topics and over 172 new posts and 31 new members since April 1st (to June 1st). The forum totals currently stand at 1125 Posts in 1304 Topics by 772 Members... here are some recent highlights.

Rom posted this issue originally in march with him trying to analyze Fe oxides using Fe metal and found that although he could get good results for FeS2, he was always a percent or so (relative) low on hematite. Probeman was able to confirm this using magnetite, and while JonF and SEM-geologist all chimed in, the best guess is that there is some subtle peak shift from the metal to the oxides (but not for the sulfide apparently!):

https://probesoftware.com/smf/index.php?topic=1423.msg11788#msg11788

Probeman posts a slide from his China presentation showing *worst* practices in EPMA (please be shocked- very shocked):

https://probesoftware.com/smf/index.php?topic=610.msg11833#msg11833

SEM-geologist chimes and and Probeman followed up with some "best" practices for standard selection:

https://probesoftware.com/smf/index.php?topic=610.msg11758#msg11758

Crystalgrower mentions that some documentation from Alfa-Aesar is disappearing:

https://probesoftware.com/smf/index.php?topic=1531.msg11835#msg11835

Heather Lowers requested a new feature to split multiple point samples into separate samples for off-line processing (and her wish was granted!):

https://probesoftware.com/smf/index.php?topic=1530.msg11843#msg11843

Probeman mentions a relatively recent collection of geological essays by John McPhee that he recently enjoyed:

https://probesoftware.com/smf/index.php?topic=133.msg11844#msg11844

JonF asks a question about controlling the Faraday cup using a Remote script and John Donovan responds:

https://probesoftware.com/smf/index.php?topic=1532.msg11845#msg11845

Related to Heather Lowers' request to split multiple point samples into separate samples, John Donovan also released a new feature to allow for selected points to be saved to a separate sample (for further processing):

https://probesoftware.com/smf/index.php?topic=1530.msg11847#msg11847

Anette von der Handt requested an export feature to export XMapTools formatted import files and we added that feature:

https://probesoftware.com/smf/index.php?topic=1533.msg11853#msg11853

Note that maps quantified using the XMapTools calibration curve may not be totally accurate due to extrapolations to different phases and also will not correct for spectral interference or beam sensitive sample effects.  But this feature will allow fully quantified maps from CalcImage to take advantage of the advanced petrological tools in the XMapTools software.

John Donovan posted a nice animated GIF showing how important the quantitative spectral interference correction in Probe for EPMA (for points) and in CalcImage (for maps) can be:

https://probesoftware.com/smf/index.php?topic=69.msg11857#msg11857

Probeman announces a recent publication describing a new method for dead time calibrations and a new non-linear correction for dead time on WDS instruments and SEM-geologist chimes in with congratulations:

https://probesoftware.com/smf/index.php?topic=1466.msg11858#msg11858

We hope you all will read this important paper and perform these calibrations on your instruments. It's actually very easy. For those who already have the Probe for EPMA software there is also a new menu item under the Help menu with a pdf describing exactly how to perform this calibration using the automation tools in Probe for EPMA, but it's easy to do even on instruments without Probe for EPMA.

The Count Times dialog in Probe for EPMA now displays the current FaradayWaitIn and FaradayWaitOut times for easier adjustment of these parameters in the Probewin.ini file. On some newer JEOL instruments these delay times can be as long as 2 or 3 seconds in order to get an accurate Faraday cup measurement:

https://probesoftware.com/smf/index.php?topic=26.msg11861#msg11861

A discussion here on the stability of the REE pentaphosphates by several forum members:

https://probesoftware.com/smf/index.php?topic=1520.msg11727#msg11727

JonF requests that we allow dead time constants in the Probewin.ini file to be decreased close to zero. Why? Because he's reading SXES data into Probe for EPMA and CalcImage!   What a guy...

https://probesoftware.com/smf/index.php?topic=71.msg11867#msg11867

And, yeah, we allowed it!

Crystalgrower comments on issues with obtaining sufficient quantities of synthetic minerals for use as global microanalysis standards and Probeman responds:

https://probesoftware.com/smf/index.php?topic=1415.msg11874#msg11874

John Donovan posts his PowerPoint file from his China EPMA workshop presentation followed by a post with a link to the video of the full talk:

https://probesoftware.com/smf/index.php?topic=1535.0

Dawncruth had some questions on the "selective" quick standards feature in probe for EPMA and John Donovan responded:

https://probesoftware.com/smf/index.php?topic=1484.0

John Donovan announces the latest version (1.4.1) of the Probe Image x-ray map acquisition software:

https://probesoftware.com/smf/index.php?topic=117.msg11889#msg11889

This version includes a number of cool new improvements, among them the ability to automatically acquire replicate acquisitions for TDI correction of maps on beam sensitive samples (this means that the _TDI conversion step in CalcImage can be skipped). And yes, we are extremely pleased to have Aurelien Moy now as the lead developer for this software.

BenjaminWade had some questions about the MultiPoint Background (MPB) method and these were answered by Anette von der Handt and John Donovan:

https://probesoftware.com/smf/index.php?topic=1537.msg11891#msg11891

Anette von der Handt adds some really cool tips and tricks for using Probe for EPMA automation, starting with custom standard lists:

https://probesoftware.com/smf/index.php?topic=8.msg11894#msg11894

Also duplicating standard positions as unknowns or wavescans:

https://probesoftware.com/smf/index.php?topic=8.msg11897#msg11897

And how to manually update/shift digitized positions in the Automate! window:

https://probesoftware.com/smf/index.php?topic=8.msg11899#msg11899

More tips and tricks follows from John Donovan and Anette von der Handt these...

Anette von der Handt also started a "tips and tricks" topic for the JEOL PC-EPMA software:

https://probesoftware.com/smf/index.php?topic=1539.msg11900#msg11900

Probeman and SEM-Geologist wonder about some claims of the Oxford WDS spectrometers:

https://probesoftware.com/smf/index.php?topic=1525.msg11902#msg11902

Anette von der Handt discusses some observations regarding the JEOL "Free Shape" mapping feature:

https://probesoftware.com/smf/index.php?topic=1541.msg11906#msg11906

Anette asks about modeling inclined grain boundaries and Nicholas Ritchie responded though it's not clear if a script was shared:

https://probesoftware.com/smf/index.php?topic=1538.0

Probing had a question about the Pouchou & Pichior XMAC software for determining empirical mass absorption coefficients:

https://probesoftware.com/smf/index.php?topic=1542.msg11914#msg11914

Probeman asked and Karsten Goemann responded to a question about using SiOI2 glass as a zero blank standard for trace elements in quartz:

https://probesoftware.com/smf/index.php?topic=516.msg11916#msg11916

Julien Allaz posted links to an excellent presentation on quantitative x-ray mapping that he did for his research group:

https://probesoftware.com/smf/index.php?topic=73.msg11919#msg11919

Highly recommended...

SEM-Geologist asks about Cameca diffusion pumps and Probeman and JonF responded:

https://probesoftware.com/smf/index.php?topic=1543.msg11920#msg11920

Jtmitchell asks about saving images with analyzed point position displayed when running Probe for EPMA in "off-line" mode:

https://probesoftware.com/smf/index.php?topic=278.msg11929#msg11929

Finally we updated our Customer List webpage as we had somehow forgotten Julien Allaz's Probe for EPMA installation at ETH Zurich:

https://probesoftware.com/smf/index.php?topic=245.msg11931#msg11931

If you have Probe for EPMA, please check your lab listing in our Customer List page and make sure the link to your lab page is correct and up to date. Thanks and we hope to see you all at M&M later this month!
John J. Donovan, Pres. 
(541) 343-3400

"Not Absolutely Certain, Yet Reliable"