ISSN:
0049-8246
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Physics
Notes:
The pulsed beam technique has been used to achieved a high data acuumulation rate in an energy-dispersive analytical system consisting of an electron probe analyser and the Harwell ‘Highspec’ pulse analyser system 3074. The use of fast beam switching ( ∼ 30 ns transient time) and the special timing facilities available in the Harwell equipment reduce the spectrum contamination due to displacement of the probe during switching to a low level and also provide precise measurements of live time, essential for accurate analysis. Analyses performed at spectrum accumulation rate of up to 12 kP.P.S. shows agreement with accepted values to within ± 1% for major constituents. Simple modification of the system permits accumulation rates up to 25 kP.P.S.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/xrs.1300030407
Permalink
