STUDY OF THE DEPENDENCE OF GAMMA-ABSORPTIONCOEFFICIENT ON THE ORDER OF THE DOUBLE LAYER SHIELD
DOI:
https://doi.org/10.24996/ijs.2010.51.1.%25gKeywords:
DEPENDENCE, GAMMA-ABSORPTIONCOEFFICIENTAbstract
Gamma absorption coefficient dependence on the order of the shielding
material is measured using a proper electronic system and Cs-137 source. The
measurements were carried out for iron, steel, copper, brass, lead and concrete as
shielding materials.
The dependence of gamma absorption coefficient on the atomic number and density
of the absorber material is taken into account. The experimental and theoretical
calculations are in a good agreement.
It is found that the absorption coefficient value increases with increasing the
absorber thickness of high atomic number (or density) and decreases with increasing
the absorber thickness of low atomic number (or density), and slightly changes with
increasing the thickness of any absorber when the difference between their atomic
number (or density) is small, whereas it is affected by the order of the two-layer
absorber if the difference between their atomic number is high.
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