Automatic energy dispersive x-ray fluorescence analysing...

Details Automatic energy dispersive x-ray fluorescence analysing... Automatic energy dispersive x-ray fluorescence analysing...

G - Physics

01

N

358/10, 358/12

G01N 23/223 (2006.01)

Patent

CA 1145069

25-5-1979 1 PHA 20891 ABSTRACT Automatic energy dispersive X-ray fluorescence analysing apparatus. An improved method and apparatus for obtaining and displaying SEM x-ray line scans and maps for data collection and presentation in energy dispersive x-ray analysis of materials, having ratemeter circuitry pro- viding a voltage output proportional to the intensity of detected pulses in an energy window and an absolute digital representation of the intensity count rate both corrected for dead time, input multiplexing and multiple output buffering of the ratemeter to accomodate multiple channel signals, a feedback loop from said ratemeter to provide display image enhancement, inhibit circuitry to eliminate background signals, signal averging circuitry to permit storage of multiple line scan of multiple single channel analyser outputs in a multi-channel analyser for later processing and display circuitry for displaying stored line scans.

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