Recently we improved the code handling the fact that the JEOL EDS interface can support 3 or 4 pulse processing time constants. Older "white type" JEOL EDS spectrometers usually have 3 time constants, while the newer "black type" spectrometers have 4 time constants.
So when PFE first connects to the JEOL EDS it asks how many time constants do you support. The latest PFE version (update any time), re-configures the dropdown list options to reflect this information as seen in the Acquisition Options dialog:
It should also be mentioned that these time constant (throughput) controls shown above may not be active (even you are connected to a Bruker, Thermo or JEOL EDS spectrometer), unless you have the relevant flag set in the Probewin.ini file as shown here in the [hardware] section:
EDSSpectraInterfacePresent=1 ; non-zero EDS spectrum interface feature available (Thermo, Bruker, etc)
EDSSpectraInterfaceType=6 ; 0 = Demo, 1 = Unused, 2 = Bruker, 3 = Oxford, 4 = Unused, 5 = Thermo NSS, 6 = JEOL
EDSMaxEnergyThroughputPresent=1 ; indicate EDS detector get/set max energy and pulse processing
By the way, if you do have a Bruker, Thermo or JEOL EDS detector and would like to integrate WDS and EDS measurements for integrated quantitative analysis please contact us at Probe Software.
For more information on this very cool feature where one can combine acquisition and quantification of elements by WDS and EDS using full spectrum EDS acquisition for maximum flexibility, please see this topic (started in 2013!) and do let us know if you have any questions:
https://probesoftware.com/smf/index.php?topic=79.0If you would like to jump ahead to a post showing more recent improvements on this integrated WDS and EDS method, specifically demonstrating the ability to perform quantitative spectral interference corrections between WDS and EDS elements, please check this post:
https://probesoftware.com/smf/index.php?topic=79.msg7818#msg7818Oh, and this latest version fixes a few minor bugs recently reported by Owen Neill and Nick Bulloss. Please update any time using the Help menu in PFE.