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Effect of the photon intensity selected at various positions under the photopeak on the mass attenuation coefficient of x‐rays
Author(s) -
Kerur B. R.,
Thontadarya S. R.,
Hanumaiah B.
Publication year - 1992
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.1300210307
Subject(s) - attenuation , mass attenuation coefficient , full width at half maximum , photon , optics , attenuation coefficient , physics , radiation , spectrometer , scattering , position (finance) , intensity (physics) , materials science , finance , economics
The variation in the value of the mass attenuation coefficient of x‐rays in aluminium was studied by counting photons under various positions in the photopeak employing a proportional counter spectrometer system with a good geometrical set‐up. The effect of (small angle) scattering was also examined using three different sets of collimators of diameter 9, 6 and 3 mm and employing both a pure x‐ray source ( 55 Fe) and a mixed radiation source ( 57 Co). The μ m values obtained at the FWHM position for each set of collimators agree closely with the theoretical values.