Abstract

Attempts have been made to develop solid state nuclear track detectors (SSNTDs) for the measurement of γ-doses in the megarad (Mrad) range, such as exists in and around a nuclear reactor core. The changes brought about in (a) track etching parameters and (b) u.v. and i.r. transmittance have been studied as γ-dose measuring indices. Effects of various core conditions such as (a) thermal/fast neutrons (b) β-particles (c) water (d) temperature and (e) γ-energy spectra etc., have been investigated for their influence on th above-mentioned two γ-dose measuring indices. Finally, some results concerning in-core γ-dose measurements of the Pakistan Research Reactor (PARR) have been given.

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