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Comparison of experimental relative efficiencies for different Si(Li) detectors in the energy range, 4.5–17.5 keV
Author(s) -
Yap C. T.,
Kump P.,
Tang S. M.,
Bilal M. G.
Publication year - 1987
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.1300160210
Subject(s) - cryostat , collimator , detector , range (aeronautics) , spectrometer , volume (thermodynamics) , materials science , energy (signal processing) , optics , physics , nuclear physics , computational physics , analytical chemistry (journal) , chemistry , superconductivity , quantum mechanics , composite material , chromatography
The relative efficiencies of four Si(Li) detectors from three different manufacturers were studied. The results show that such efficiencies depend not only on the shape and size of the detector's sensitive volume but also on the collimator assembly and centralized or off‐centre mounting of the crystal within the cryostat. It is therefore necessary to calibrate the XRF spectrometer in the same geometric configuration which will be used for the intended application in elemental analysis; calculated model‐dependent efficiencies can be very different from experimental efficiencies.