¿ªÔÆÌåÓýGeo, These ¡°peaks¡± look to be counting noise. The difference between Kb1 and Kb2 is just 0.013 while the peak difference is 0.08 keV Dud From: [email protected]
[mailto:[email protected]] On Behalf Of GEOelectronics@...
Sent: Saturday, October 24, 2020 6:15 AM To: [email protected] Subject: Re: [XRF] Si pin xrf ..1st go ? Charles, In the chart below, ignore the intensity%- it has no meaning in this context, but the X-Ray transition energies do. . ? Check out the different K lines on the chart, what you are seeing as 2 peaks in your scan probably is 2 peaks. Ka1 is the one to the right (higher energy side) ? When you have a tall photopeak like in your scan, also look 1.74 keV below to see the silicon "Si Escapae Peak", Normally it is very small. ? Mn-57 ? X-Ray Emissions: ? ? ? Energy? ???? ? ?Intensity ???? Assignment? ? ? ?(keV)? ??????? ? ? ? (%)? ? ??????? ? ? ? ? ? ?? ? ? ? ?7.112???????? ? ? 0.0000? ? ??? ? ?Fe Kb4 ? ? ?7.108???????? ? ? 0.0010? ? ??? ? ?Fe Kb5 ? ? ?7.058???????? ? ? 1.8300? ? ??? ? ?Fe Kb1 ? ? ?7.058???????? ? ? 0.9400? ? ??? ? ?Fe Kb3 ? ? ?6.404???????? ? ?15.4000? ? ?? ? ?Fe Ka1 ? ? ?6.391???????? ? ? 7.8000? ? ??? ? ?Fe Ka2 ? ? ?6.266???????? ? ? 0.0000? ? ??? ? ?Fe Ka3 ? ? ?0.792???????? ? ? 0.0160? ? ??? ? ?Fe Lb3 ? ? ?0.792???????? ? ? 0.0100? ? ??? ? ?Fe Lb4 ? ? ?0.717???????? ? ? 0.2000? ? ??? ? ?Fe Lb1 ? ? ?0.708???????? ? ? 0.0018? ? ??? ? ?Fe Lb6 ? ? ?0.705???????? ? ? 0.2600? ? ??? ? ?Fe La1 ? ? ?0.705???????? ? ? 0.0290? ? ??? ? ?Fe La2 ? ? ?0.628???????? ? ? 0.0220? ? ??? ? ?Fe Lh ? ? ?0.615???????? ? ? 0.0320? ? ??? ? ?Fe Ll ? From:
"Charles
David Young" <charlesdavidyoung@...> ? Using a convex mount for your buttons is very interesting.? I may have to try that. ? Is your input rate always so high?? Mine is typically in the 10 to 20 range.? Have you done the Tune Slow/Fast Thesholds? ? The attached plot shows a bifurcation of the FeKa1 peak that should go away with higher counts. ? Charles ? On Sat, Oct 24, 2020 at 5:07 AM Mike L. <loughlin3@...> wrote:
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