Recent Posts

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1
CalcImage / Re: New TDI Scanning For Beam Sensitive Samples
« Last post by JonF on Today at 02:48:54 AM »
That's a really great feature, thanks John!

I don't suppose you'd like to add a way of displaying just an average TDI plot of a selected region, rather than all the individual pixel TDI values?
2
EPMA Standard Materials / Re: Looking for multi-phase mineral specimen with small domains
« Last post by bamajon1974 on August 13, 2024, 05:11:33 PM »
(bump) any other suggestions?
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Discussion of General EPMA Issues / Re: Building free EPMA online tools
« Last post by Probeman on August 13, 2024, 09:33:21 AM »
Thanks, Ben.

It might also be worth sending him a PM by clicking on his name to remind him to check this topic since it's been over a year since he posted his request.
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Discussion of General EPMA Issues / Re: Building free EPMA online tools
« Last post by Ben Buse on August 13, 2024, 09:08:13 AM »
Apologies, would this group fit what Dominik is looking for?

I was just playing with Philippe Pinard's python library (pyxray) with Xrays listed as part of openmicroanalysis, constructed during his PhD thesis, creating a very simple code to plot the X-ray transitions with their relative weight, just to try it out

Code: [Select]
import pyxray
import matplotlib.pyplot as plt
import numpy as np
import easygui
TypesOfLines = easygui.enterbox("Which x-ray lines? Seperated by comma eg. Ka1, Kb1 etc")
ListOfElements = easygui.enterbox("Which elements? Seperated by comma eg. Fe, Mg etc")
TypesOfLines = TypesOfLines.split(",")
ListOfElements = ListOfElements.split(",")

for x in range(len(TypesOfLines)):
    for xx in range(len(ListOfElements)):
        xrayline = pyxray.xray_line(ListOfElements[xx].strip(), TypesOfLines[x].strip())
        xpoints = np.array([xrayline.energy_eV, xrayline.energy_eV])
        ypoints = np.array([0, xrayline.relative_weight])
        ElementPlusLine = ListOfElements[xx]+TypesOfLines[x]
        plt.plot(xpoints,ypoints, label = ElementPlusLine)
plt.legend()
plt.show()
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Discussion of General EPMA Issues / Re: Building free EPMA online tools
« Last post by Probeman on August 13, 2024, 08:24:32 AM »
Quote from: Ben Buse on August 13, 2024, 07:08:09 AM
There was an attempt with openmicroanalysis a while back, I guess it lost energy as people moved on

https://github.com/openmicroanalysis

https://academic.oup.com/mam/article/23/S1/234/6943154

Why would you think that?  Probe Software still supports and distributes free open source EPMA tools on the Open MicroAnalysis site: CalcZAF and Standard for analysis and modeling of unknown and known compositions. The latest source code was updated a few weeks ago:

https://github.com/openmicroanalysis/calczaf

And also from NIST, there is support and distribution of DTSA-2 for EDS analysis and modeling.

Were you looking for something else specifically?
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Discussion of General EPMA Issues / Re: Building free EPMA online tools
« Last post by Ben Buse on August 13, 2024, 07:08:09 AM »
There was an attempt with openmicroanalysis a while back, I guess it lost energy as people moved on

https://github.com/openmicroanalysis

https://academic.oup.com/mam/article/23/S1/234/6943154
7
CalcImage / Re: New TDI Scanning For Beam Sensitive Samples
« Last post by John Donovan on August 08, 2024, 07:30:42 PM »
As many of you know, from the Standard Assignments dialog in Probe for EPMA, one can plot TDI intensity curves for point analyses:

https://probesoftware.com/smf/index.php?topic=116.msg12584#msg12584

The same dialog in CalcImage displays every nth pixel, to get a sampling of the TDI curves:

https://probesoftware.com/smf/index.php?topic=912.msg5831#msg5831

Now we have added a new window in CalcImage (see the Run menu) that allows the user to select a group of pixels to display TDI intensities from replicate x-ray maps extrapolating back to zero time for correction of beam sensitive samples in quantitative x-ray maps as seen here:



In addition one can select a single pixel TDI curve if desired:



Update from the Help | Update Probe for EPMA menu as usual...
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DTSA II / Re: Display MAC curve
« Last post by Ben Buse on August 08, 2024, 03:45:37 AM »
Thank you, that's great can do it for compounds,

Realised was making dumb mistake, didn't press ctrl+enter, just enter
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Probe for EPMA / Re: Sample tilt and effective take off angle correction
« Last post by John Donovan on August 07, 2024, 11:32:59 AM »
This is a small thing but could be helpful if you are using the new effective take off angle calculator in the Elements/Cations dialog (where "north" is zero degrees and increases "clockwise"):



We can now display the JEOL (and Cameca) spectrometer orientation numbers because JEOL has two different orientations depending on what continent the instrument was installed in.  Not sure why there are two different spectrometer numbering orientations for JEOL- does anyone know why?

Also, we tested the tilt calculation on a JEOL stage configuration and it does seem to produce valid results if the sample is tilted in the sample holder (we performed the test in simulation mode by adjusting the Z stage position).

This spectrometer orientation information is in the [hardware] section of the Probewin.ini file as shown here for the JEOL type 1 orientation with spectrometer 0 being the EDS detector:

JEOLSpectrometerOrientationType=1
SpectrometerOrientations0="215"
SpectrometerOrientations1="253"
SpectrometerOrientations2="302"
SpectrometerOrientations3="351"
SpectrometerOrientations4="40"
SpectrometerOrientations5="101.5"


Update as usual from the Help | Update Probe for EPMA menu.
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DTSA II / Re: Display MAC curve
« Last post by Nicholas Ritchie on August 07, 2024, 10:05:36 AM »
Code: [Select]
display(getMac("C")) works. Or:
Code: [Select]
> displayMac("C")or
Code: [Select]
> displayMac("MgAl2O4")or similar.
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