Author Topic: Probe Software Forum Newsletters  (Read 7245 times)

John Donovan

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Re: Probe Software Forum Newsletters, Winter 2016-2017
« Reply #15 on: February 02, 2017, 01:54:15 pm »
Hi all,
The Probe Software user forum has been very busy this winter, with over 42 new topics and over 300 new posts since Nov 1. The forum totals currently stand at 5411 Posts in 801 Topics by 350 Members... here are some recent highlights.

Brian Joy and Anette von der Handt had a discussion regarding changes in Bragg crystal reflectivity and peak shape over time:

http://probesoftware.com/smf/index.php?topic=854.0

Probeman was at the San Francisco AGU (American Geophysical Union) in December to present his new trace element methods, but was disturbed to see some talks in which some trace element "diffusion" profiles appeared to be merely secondary fluorescence artifacts from boundary phases... don't geologists read the Journal of Applied Physics?  Apparently not!    :)

http://probesoftware.com/smf/index.php?topic=58.msg5435#msg5435

Anette von der Handt posted some useful on-line resources for EPMA, WDS, EDS and SEM:

http://probesoftware.com/smf/index.php?topic=856.0
http://probesoftware.com/smf/index.php?topic=855.0

Probeman posted a nice summary of accuracy and precision of trace element measurements using the MAN background correction method (along with the blank correction method):

http://probesoftware.com/smf/index.php?topic=307.msg5426#msg5426

Ben Buse and John Donovan discuss how to deal with negative intensities when performing quantification of x-ray maps- we don't want to just cut things off at zero!  Do you know why?

http://probesoftware.com/smf/index.php?topic=861.0

John Donovan has improved the WDS (and EDS) simulation modes in Probe for EPMA to more accurately simulate EPMA for teaching and demonstration. Every student in your EPMA class can have PFE (and CalcZAF) on their own laptops so they can follow right along with their mouse pointer.  Your students will already understand how to run the microprobe before they've even sat down with the instrument!

http://probesoftware.com/smf/index.php?topic=837.msg5480#msg5480

Probeman posted a discussion on halogens replacing stoichiometric oxygen in various minerals and how that should be corrected for in PFE:

http://probesoftware.com/smf/index.php?topic=42.msg5473#msg5473

Ben Buse posted a nice summary of using PCC (Probe Column Condition) files in PFE for handling characterization of inclusions at multiple beam energies:

http://probesoftware.com/smf/index.php?topic=5.msg5504#msg5504

John Donovan posted an update on where we are at with regard to synchronized EDS and WDS x-ray mapping on Cameca and JEOL EPMA instruments for integration with Thermo, Bruker and JEOL EDS systems:

http://probesoftware.com/smf/index.php?topic=865.msg5500#msg5500

Karsten Goemann and John Donovan implemented a new feature in PFE that allows the user to select a different default "sample basis" for updating multiple selected samples for both the Elements/Cations and Standard Assignments dialogs:

http://probesoftware.com/smf/index.php?topic=42.msg5511#msg5511

Walter asked several questions about utilizing different applications (Casino, pyPenelope, CalcZAF, DTSA-II, etc.) for quantifying EDS intensities from an SEM:

http://probesoftware.com/smf/index.php?topic=870.0

Julien Allaz asks about diode vs. triode ion pumps:

http://probesoftware.com/smf/index.php?topic=869.0

John Donovan discusses how Probe Software handles errors returned by the instrument, compared to JEOL and Cameca:

http://probesoftware.com/smf/index.php?topic=868.msg5533#msg5533

Emma asks about mounting magnetic powders for imaging in an SEM:

http://probesoftware.com/smf/index.php?topic=872.msg5544#msg5544

Owen Neill posts an announcement of a standard materials symposium at M&M this summer in St. Louis:

http://probesoftware.com/smf/index.php?topic=99.msg5531#msg5531
« Last Edit: December 09, 2017, 02:30:37 pm by John Donovan »
John J. Donovan, Pres. 
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Re: Probe Software Forum Newsletters, Spring 2017
« Reply #16 on: June 18, 2017, 10:44:57 am »
Welcome to your Probe Software Forum Spring 2017 Newsletter!  A couple of stats to begin with: we now have 373 members, 5641 posts in 811 topics. Some of the more notable new topics/posts this spring:

John Donovan presented a new method for correction of x-ray mapping of beam sensitive samples (e.g., alkali glasses), using fast replicate x-ray maps to quantitatively extrapolate ion migration effects using the time dependent intensity correction (also known as a volatile correction), but now on a pixel by pixel basis as seen here:

http://probesoftware.com/smf/index.php?topic=912.0

Amazingly, although these significant artifacts (see the grid patterns in the alkali element maps) are created (even when mapping at low beam currents and short dwell times), this new TDI scanning correction seems to be able to accurately correct for such ion migration effects quantitatively. Perhaps even more surprising is that the same method appears to quantitatively correct for carbon contamination effects as shown here:

http://probesoftware.com/smf/index.php?topic=933.0

John Donovan has also significantly improved the simulation mode of Probe for EPMA to better enable the teaching of EPMA in the classroom as discussed here:

http://probesoftware.com/smf/index.php?topic=837.msg5472#msg5472

The latest versions of Probe for EPMA now allows instructors and students to simulate both EDS and WDS acquisition and quant processing in the classroom without wasting time on the instrument.  Every students gets a free copy of the software which they can also use to re-process actual probe data for their own projects.

Paul Carpenter, Ben Buse and Probeman discuss the history of the Cal Tech "Shaw" dataset here:

http://probesoftware.com/smf/index.php?topic=890.msg5922#msg5922

Andrew Mott and Probeman discuss problems with carbon coating here:

http://probesoftware.com/smf/index.php?topic=921.0

After seeing an interesting poster by Ery Hughs and a question by Ed Vicenzi on water by difference at the EMAS meeting, Probeman discusses some subtleties with the water by difference calculation here:

http://probesoftware.com/smf/index.php?topic=922.0

John Donovan started a new topic on the "History of EPMA" where you all can share your stories from the "early days":

http://probesoftware.com/smf/index.php?topic=924.0

Probeman started a topic on "Applications for EPMA" to help document the many apps available for various EPMA/SEM calculations:

http://probesoftware.com/smf/index.php?topic=927.0

Please feel free to add your own knowledge of EPMA applications to the topic!

A new board for discussing the SAMx STRATAGem software has been started:

http://probesoftware.com/smf/index.php?board=33.0

Probeman wrote a long post on strategies for accurate trace element characterization. Maybe he's right or maybe he's wrong- feel free to chime in...

http://probesoftware.com/smf/index.php?topic=928.0

Cesc Salvat shared a new Java application to assist in the creation of geometry files for Penepma Monte Carlo calculations:

http://probesoftware.com/smf/index.php?topic=202.msg5961#msg5961

Probeman shows results from different materials regarding the infamous "holes" in the continuum at the Ti Ka peak position on PET crystals:

http://probesoftware.com/smf/index.php?topic=29.msg5974#msg5974

Anette von der Handt is designing a new lab for her new EPMA instrument. Here are some items of interest for those that might be in a similar situation:

http://probesoftware.com/smf/index.php?topic=879.msg5962#msg5962

Regards,
The Probe Software Users Forum Team.

http://probesoftware.com:80/smf/index.php
John J. Donovan, Pres. 
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John Donovan

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Re: Probe Software Forum Newsletters, Summer 2017
« Reply #17 on: September 02, 2017, 09:21:32 am »
Hi all,
Now that everyone is back from M&M, here's the Probe Software Summer, 2017 newsletter.  But first a few forum stats: we now have 377 members, 5829 posts in 829 topics. Some recent topics of note are listed below.

Ben Buse discusses customizing Surfer scripts here for plotting quantitative x-ray maps:

http://probesoftware.com/smf/index.php?topic=305.msg6100#msg6100

Anette von der Handt and Owen Neil discuss the compositions of the PC and LDE multi-layer Bragg "crystals" in this topic:

http://probesoftware.com/smf/index.php?topic=375.msg6111#msg6111

Anette von der Handt posts her M&M abstract on TDI scanning. This is a new quantitative mapping method that allows one to correct x-ray maps for both beam sensitivity and also carbon contamination (when measuring carbon):

http://probesoftware.com/smf/index.php?topic=912.msg6127#msg6127

John Donovan modified the JEOL and Cameca simulation modes in Probe for EPMA for teaching EPMA in the classroom to automatically utilize the last standard composition for unknown and wavescan simulation acquisitions. Now you can utilize Probe Software's free distribution license for off-line operation of Probe for EPMA in your classroom to teach both the theory and practice of EPMA (realistic EDS and WDS simulation modes) to your students:

http://probesoftware.com/smf/index.php?topic=837.msg6169#msg6169

John Donovan describes a new EDS feature for integrated EDS-WDS acquisition which allows the user specify that the application automatically specifies a live time for the EDS acquisition that is based on the actual acquisition time of the WDS elements for standards, unknowns and wavescans:

http://probesoftware.com/smf/index.php?topic=79.msg6197#msg6197

Have a great rest of your summer, and for those that saw the eclipse in the US earlier this week, wasn't that cool?
john
John J. Donovan, Pres. 
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John Donovan

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Re: Probe Software Forum Newsletters, Fall 2017
« Reply #18 on: December 18, 2017, 09:16:00 am »
Hi all,
The Probe Software user forum has been busy this fall, with over 58 new topics and over 726 new posts since summer. The forum totals currently stand at 6137 Posts in 859 Topics by 403 Members... here are some recent highlights.

Jason in Singapore asks about variable pressure and heating stages in EPMA:

http://probesoftware.com/smf/index.php?topic=985.msg6446#msg6446

Probeman asks about the issues with hitting an elemental sulfur sample with the electron beam:

http://probesoftware.com/smf/index.php?topic=740.msg6522#msg6522

John Fournelle asks about the density of carbon coatings:

http://probesoftware.com/smf/index.php?topic=995.msg6511#msg6511

Probeman posted the worst looking peakshape we've seen in a WDS Bragg crystal:

http://probesoftware.com/smf/index.php?topic=18.msg6516#msg6516

If you have something worse he'd like to see it!  Alan Lerner asks for advice on polishing water sensitive samples here:

http://probesoftware.com/smf/index.php?topic=993.msg6506#msg6506

The "mystery" peak seen on some TAP crystals in the region of F Ka (but only when Ti is present!) seems to be an artifact of some TAP crystals based on further measurements on other instruments:

http://probesoftware.com/smf/index.php?topic=992.0

One needs a good precision scan as this "mystery" peak is very weak (which is probably why it was never noticed until recently during MAN background calibrations by Ben Wade and others).  Maybe give it a try on your instrument and let us know what you find on your TAP crystals.

Ben Hanson proposed a novel idea to utilize the off-peak interpolated measurements from the standards used for the MAN background calibration curve, and John Donovan implemented it in Probe for EPMA:

http://probesoftware.com/smf/index.php?topic=987.msg6454#msg6454

The idea being that if ones standards contain trace amounts of the element being calibrated for the continuum intensity regression, the use of these interpolated off-peak intensities for the MAN calibration avoids these contamination issues.  One interesting possibility of this new method is performing trace oxygen or carbon analyses without the need to measure off-peak backgrounds on ones unknown samples or quant maps.  Since most samples are oxidized and/or carbon contaminated at some level!

John Donovan reports that the JEOL "anti-Cartesian" flag in Surfer is now automatically implemented and utilized in scripts output from CalcImage for presentation quality x-ray maps for proper orientation of JEOL maps (without the need to invert the maps!):

http://probesoftware.com/smf/index.php?topic=41.msg6488#msg6488

If you have Surfer v. 13 or higher this will occur automatically for the default output scripts. If you have unmodified customized scripts you can download them and update yours with the attached zip file in the above post. If you have modified your custom scripts, you will want to make the changes to your custom scripts yourself as described in the above link.  The other good news is that PFE and CalcImage now automatically detect and update the version and app folder locations for both Grapher and Surfer now:

http://probesoftware.com/smf/index.php?topic=707.msg6486#msg6486

Probeman discusses the origin of the words fluorescence, fluorine and fluorite. Yes, they are all related in an interesting way:

http://probesoftware.com/smf/index.php?topic=924.msg6480#msg6480

DrSciman asks for help using DTSA for thin film analyses, but hasn't gotten much response.  Can you help him?

http://probesoftware.com/smf/index.php?topic=728.msg6470#msg6470

Jon Wade posted his poster on secondary fluorescence here (in DAC samples):

http://probesoftware.com/smf/index.php?topic=58.msg6465#msg6465

Ben Wade, Nicole and Probeman discuss trace element strategies with a focus on Au in pyrite here:

http://probesoftware.com/smf/index.php?topic=980.msg6394#msg6394

John Fournelle asks how we can alert users to questionable quant results.  How would you alert your users?

http://probesoftware.com/smf/index.php?topic=986.msg6433#msg6433

Thanks to all and have a great winter season and happy holidays.

The Probe Software User Forum
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John Donovan

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Re: Probe Software Forum Newsletters, Winter 2017-2018
« Reply #19 on: February 26, 2018, 06:41:10 pm »
Hi all,
The Probe Software user forum has been quite busy these last few months, with over 40 new topics and over 309 new posts since last Nov 1st. The forum totals currently stand at 6340 Posts in 883 Topics by 415 Members... here are some recent highlights from January and February.

Crystalgrower posted an extensive set of literature reviews and comments on growing single crystals for use as analytical EPMA standards (alkalis, halides, cesium and vanadium):

http://probesoftware.com/smf/index.php?topic=1010.msg6638#msg6638
http://probesoftware.com/smf/index.php?topic=1011.msg6639#msg6639
http://probesoftware.com/smf/index.php?topic=1012.msg6640#msg6640

Probeman reviews the $99 8 megapixel Ziggi document camera for use with PictureSnap (and PictureSnapApp) for sample navigation:

http://probesoftware.com/smf/index.php?topic=999.msg6635#msg6635

Several members continue a discussion on color palettes and color blindness:

http://probesoftware.com/smf/index.php?topic=958.msg6653#msg6653

Probeman finally learns of a better method for demagnetizing large steel/iron samples:

http://probesoftware.com/smf/index.php?topic=354.msg6656#msg6656

He also has a long post on quantifying trace carbon in steel:

http://probesoftware.com/smf/index.php?topic=1005.msg6659#msg6659

Ben Buse and Philipe Pinard discuss how to obtain intensities from each geometric body in Monte Carlo software, e.g., Penepma:

http://probesoftware.com/smf/index.php?topic=927.msg6660#msg6660

Philipp Poeml and John Donovan shared Poeml's latest "nuclear" emission, absorption edge and MAC data files for use in Probe for EPMA and CalcImage for characterization of nuclear materials as a ZIP attachment (remember to login to see attachments):

http://probesoftware.com/smf/index.php?topic=311.msg6661#msg6661

Just unzip these files and copy them to your ProgramData\Probe Software\Probe for EPMA folder (note this folder is normally hidden by Microsoft- don't ask why!), in order to perform advanced nuclear material characterization.

Mike Matthews and John Donovan discuss loading mosaic images acquired in Stage for sample navigation in PictureSnap:

http://probesoftware.com/smf/index.php?topic=324.msg6670#msg6670

Brian Joy, Owen Neill and crystalgrower discuss how we could "crowd source" the development of a high concentration Cs standard for EPMA:

http://probesoftware.com/smf/index.php?topic=560.msg6677#msg6677

Brian Joy and crystalgrower discuss synthetic sulfides, arsenides, etc.:

http://probesoftware.com/smf/index.php?topic=1017.msg6678#msg6678

Probeman discusses color scales and data thresholding for rainbow versus thermal color palettes:

http://probesoftware.com/smf/index.php?topic=73.msg6691#msg6691

Mike Matthews and John Donovan discuss the calculation details of the blank correction in Probe for EPMA and CalcImage:

http://probesoftware.com/smf/index.php?topic=454.msg6694#msg6694

John Donovan releases a new matrix.mdb file with PFE v. 12.1.5 which contains a large number of actinide binaries for the Penepma based fast Monte Carlo matrix corrections:

http://probesoftware.com/smf/index.php?topic=390.msg6698#msg6698

We also introduced a new keyword for the probewin.ini file that allows those with LaB6 guns to still utilize the "filament standby" modes:

http://probesoftware.com/smf/index.php?topic=40.msg6704#msg6704

JEOL FEG instruments (8530) already utilize automatic closing the the gun valve when specified by the user.

An update on off-peak background "sharing" is here:

http://probesoftware.com/smf/index.php?topic=9.msg6709#msg6709

"Shared" off-peak backgrounds allows one to acquire normal two point off-peak backgrounds for multiple elements, and "share" these off-peak backgrounds for elements that use the same spectrometer and Bragg crystal. This allow one to utilize the many advanced features of the "multi-point-bgd" (MPB) method developed by Julien Allaz, Karsten Goemann, Mike Jercinovic and implemented by Probe Software.

Probe Software announces a new software product for sample navigation in SEM and TEM instruments:

http://probesoftware.com/smf/index.php?topic=1020.msg6712#msg6712

This is basically an enhanced "standalone" version of the PictureSnap feature in Probe for EPMA. This low cost software product can be downloaded for free and run in "demo" mode to test it for yourself.  It can also be used for free in "text input" mode on any instrument, but which requires the user to enter the stage calibration coordinates using their keyboard. For direct interfacing to your FEI SEM/TEM or JEOL SEM instrument hardware, contact Probe Software to purchase the unlock code.  A grad student at UofO reviews this new software here:

http://probesoftware.com/smf/index.php?topic=1020.msg6724#msg6724

Jeff Chen asks about different oxidation states at high temperatures in oxides:

http://probesoftware.com/smf/index.php?topic=691.msg6708#msg6708

John Donovan adds an export menu to CalcImage for export of Probe Image PrbImg files to ASCII text for Remi Deville:

http://probesoftware.com/smf/index.php?topic=972.msg6728#msg6728

Remi apparently wants to import the map intensities into MatLab for special re-processing. This new code is just a preliminary version, so please everyone feel free to suggest further changes.

Anette von der Handt posts a number of pdfs attachments of EPMA advertisements in the literature from the "olden days" of EPMA:

http://probesoftware.com/smf/index.php?topic=924.msg6732#msg6732

Andrew Locock posts some interesting comments on synthesis of cesium synthetics for use as analytical standards:

http://probesoftware.com/smf/index.php?topic=1012.msg6737#msg6737

And many other topics. Thanks to all and have a wonderful spring season.

Regards,
The Probe Software Users Forum Team.

http://probesoftware.com:80/smf/index.php
« Last Edit: May 24, 2018, 11:51:23 am by John Donovan »
John J. Donovan, Pres. 
(541) 343-3400

"Not Absolutely Certain, Yet Reliable"