Gas‐Flow Proportional Counter for Soft X‐Ray Detection

Autor:	S. Fine, W. B. Brown, C. F. Hendee
Rok vydání:	1956
Předmět:	Physics Silicon Spectrometer Atmospheric pressure business.industry Counting efficiency Detector chemistry.chemical_element Proportional counter Optics Optical path chemistry business Instrumentation Helium
Zdroj:	Review of Scientific Instruments. 27:531-535
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1715624
Popis:	One of the major problems of analysis in the soft x‐ray region is the limitation due to low transmission of the window materials of sealed‐off x‐ray detectors. This paper describes the properties and use of a gas‐flow proportional counter system for the x‐ray analysis of elements in the third period of the periodic table, with special reference to aluminum and silicon. The use of gases flowing continuously through the counter at atmospheric pressure in conjunction with helium also at atmospheric pressure in the optical path permits the use of ultra‐thin nonvacuum‐tight windows with high transmission in this region. Comparative data, obtained on a Norelco fluorescence spectrometer, show a tenfold increase in counting efficiency for AlKα over detectors previously available for this application.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0a6533bf7cdbd9c040ea598f4ca2acf1 https://doi.org/10.1063/1.1715624 Zobrazit plný text záznamu