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X‐ray tube excited fluorescence method using critical absorbers
Author(s) -
Puumalainen P.
Publication year - 1977
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1300060206
Subject(s) - excited state , excitation , fluorescence , x ray tube , atomic physics , beam (structure) , detector , x ray , tube (container) , optics , x ray fluorescence , materials science , physics , electrode , anode , quantum mechanics , composite material
Critical absorbers were employed to shape a quasi‐discrete excitation beam for X‐ray fluorescence analysis from the primary spectrum of an X‐ray tube. Also the elimination of the Compton scattered excitation peak seen by the detector was made adapting critical absorbers. In single heavy metal analyses the irradiation times needed in the present method were diminished by a factor of several orders of magnitude, with the same accuracy, compared with those needed in the conventional 241 Am excited X‐ray analysis.