NT & RP Journal
THE SOLID ANGLE SUBTENDED BY A COLLIMATED DETECTOR AND A NUCLEAR FUEL ASSEMBLY
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Vol. XXXII, No. 2, Pp. 115-192
June 2017
UDC 621.039+614.876:504.06
ISSN 1451-3994

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Pages: 136-139

Authors:

Georgios Nicolaou

Abstract

A Monte Carlo procedure is presented to calculate the solid angle subtended between a HPGe collimated detector and a PWR 17 x 17 fuel assembly. Self-shielding within the assembly is assessed in the case of gamma rays encountered in gamma spectroscopy of spent nuclear fuel. Self-shielding renders a non-uniform 3-D distribution of the radioactivity within the assembly whose extend depends on  gamma ray energies of interest. Hence, the solid angle is reduced to an effective one  for each of the different energies of interest.

Key words: solid angle, self-shielding, Monte Carlo, nuclear fuel assembly

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Vinča Institute of Nuclear Sciences :: Designed by milas :: July 2007
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