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Latest version changes for Probe for EPMA (and CalcImage) v. 14.0.1

Started by John Donovan, August 17, 2013, 12:58:53 PM

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AndrewLocock

Quote from: John Donovan on September 19, 2023, 02:01:47 PMContinuing with changes since June, we added a new backscatter correction called the DAM (Donovan and  Moy) backscatter correction as described in the latest version.txt file:

[tt]07/29/23    Add new matrix correction code for Donovan and Moy BSC/BKS corrections (modified from PAP).
[/tt]
This deserves its own topic here:

https://smf.probesoftware.com/index.php?topic=1566.msg12044#msg12044

Why did we name it the DAM backscatter correction?  Well. perhaps because that was better than the MAD backscatter correction...    :D

Be sure to update your Probe for EPMA using the Help menu as we had to make some minor tweaks (today) to fix some display issues.

Hello,
The attached screen capture (JPG) shows a comparison for the NIST Au-Ag SRMs 481C,D,E of the various matrix corrections, using LINEMU / CITZMU.
The sum of the squared differences for both Ag and Au were computed with respect to the average mass fractions given by NIST.
For this system, the PAP/Donovan and Moy BSC/BKS (prZ) scheme gives the lowest mean squared differences.
Thanks for the improvement!

P.S. Operating conditions: 15 kV, 20 nA, 5-micron beam diameter, 60 s on peak, Cameca SX100, Au M-alpha, Ag L-alpha lines, n = 8 points each.

AndrewYou cannot view this attachment.



John Donovan

Very nice.

Yes, the Z based corrections are a definite improvement, especially for such high Z materials where the A/Z ratios are significantly different for these elements.

If interested, one can see these differences using the Standard application. Simply check the Output | Calculate Alternative Zbars menu, double-click a standard in the list and you will see this output:



The original paper is here from 2023:

https://academic.oup.com/mam/article-abstract/29/4/1436/7224307

and a followup (2024) is here:

https://academic.oup.com/mam/article/30/Supplement_1/ozae044.088/7719396
John J. Donovan, Pres. 
(541) 343-3400

"Not Absolutely Certain, Yet Reliable"

AndrewLocock

Can we look forward to a publication on the DAM matrix corrections?
Thanks again,
Andrew

John Donovan

The paper links in my previous reply should suffice. But if anyone is interested in the actual code, see here:

https://github.com/openmicroanalysis/calczaf

The changes are noted in the ZAF.BAS module.
John J. Donovan, Pres. 
(541) 343-3400

"Not Absolutely Certain, Yet Reliable"

AndrewLocock

https://academic.oup.com/mam/article-abstract/29/4/1436/7224307

Donovan, J., Ducharme, A., Schwab, J.J., Moy, A., Gainsforth, Z., Wade, B. and McMorran, B., 2023. An improved average atomic number calculation for estimating backscatter and continuum production in compounds. Microscopy and Microanalysis, 29(4), pp.1436-1449.

John Donovan

The latest version of Probe for EPMA (v. 13.9.5) now includes a new "helper" dialog called Advanced EPMA, which is similar to the existing Basic EPMA dialog:

https://smf.probesoftware.com/index.php?topic=1267.0

which provides one click access to various advanced methods and functions in Probe for EPMA, along with links to context sensitive Help and links to video tutorials on our Probe Software YouTube channel:



You can access both of these "helper" dialogs from the File menu in Probe for EPMA, once a new probe database is created or an old probe database is opened.

You will note that some methods and functions do not yet have video tutorials but we hope to provide them in future updates.  If you are interested in producing video tutorials for Probe Software on specific topics, as seen here:

https://smf.probesoftware.com/index.php?topic=1578.msg12220#msg12220

We do provide compensation for your time, so please contact Probe Software directly by email.
John J. Donovan, Pres. 
(541) 343-3400

"Not Absolutely Certain, Yet Reliable"

John Donovan

The current version of Probe for EPMA is 13.9.7.  We've fixed a number of small bugs and added some new features as described here:

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

After updating Probe for EPMA please check that you are on v. 13.9.7 by checking the Help | About Probe for EPMA menu dialog.  If you are not, please update again using the Help | Update Probe for EPMA menu.  If it says you are already on the latest version but you are not on v. 13.9.7., please click the Delete Update button in the Update dialog to force an update to v. 13.9.7.  This update issue may be due to our transition over to a new Internet host this fall, but once you are updated to v. 13.9.7 you should be fine for future updates.

Happy New Year!
John J. Donovan, Pres. 
(541) 343-3400

"Not Absolutely Certain, Yet Reliable"

John Donovan

Last summer we had to move our Probe Software web and server hosting to a new provider. We did keep the old site up for a while to allow people to get their current software updated, but eventually we had to change things to the new server which came with new security protocols.

So if you have an old version of Probe for EPMA from 2024 (or older), you will need to utilize the secondary download site here in your current software using the Help menu in CalcZAF and/or Probe for EPMA:



Once you are updated with CalcZAF and/or Probe for EPMA, you will have v. 14.0.2 and the Help | Update window will have changed to this:



Or you can download the latest CalcZAF and/or Probe for EPMA here on our Resource page:

https://www.probesoftware.com/resources/

Note that for new installations for re-processing data from your instrument, or running Probe for EPMA in simulation mode on a new computer, you need to download and install both the CalcZAF and Probe for EPMA MSI installers as mentioned on the web page.
John J. Donovan, Pres. 
(541) 343-3400

"Not Absolutely Certain, Yet Reliable"