News:

:) If you can't see some "in-line" images in a post, try "refreshing" your browser!

Main Menu

WDS detector definition

Started by divakar, March 12, 2022, 07:25:18 AM

Previous topic - Next topic

divakar

I am new to both this forum and DTSA-II. I see a number of posts dealing with WDS data. However, in DTSA-II, I see an option to add EDS detectors alone. Am I missing something here? How would I go about defining a WDS detector? I have a SEM on which a WDS detector is installed and would like to simulate corresponding spectra.

Nicholas Ritchie

DTSA-II is really designed for EDS.  WDS detectors are very difficult to simulate because the efficiency functions are not readily modeled.  As as result, I've never made an attempt.  The best option for WDS is to simulate the sample and standards as EDS spectra then use the tabulated intensity values on the report tab to compute the k-ratio.
"Do what you can, with what you have, where you are"
  - Teddy Roosevelt

Probeman

#2
Quote from: divakar on March 12, 2022, 07:25:18 AM
I have a SEM on which a WDS detector is installed and would like to simulate corresponding spectra.

For WDS spectra "simulation", an excellent alternative is to utilize Sandrin Feig's "EPMA Method Development" tool:

https://smf.probesoftware.com/index.php?topic=743.0

These are actual WDS spectrometer scans and while it won't have data specific to your WDS spectrometer (which one is it?), the software contains full range spectrometer scans for both JEOL and Cameca WDS spectrometers on a large number of materials.
The only stupid question is the one not asked!