Albedo Component of Gamma-Ray Streaming through Straight Cylindrical Ducts

An experimental study was performed to investigate the effect of γ-ray streaming through cylindrical steel and lead ducts having various lengths and radii. In the experiment, 60 Co and 137 Cs point sources, and small sized detector (pulse dosimeter with plastic scintillator) was adopted, source and...

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Bibliographic Details
Published inJournal of nuclear science and technology Vol. 4; no. 8; pp. 423 - 426
Main Authors MIYAKOSHI, Jun-ichi, MIYASAKA, Shun-ichi, TSURUO, Akira
Format Journal Article
LanguageEnglish
Published Tokyo Taylor & Francis Group 01.08.1967
Taylor & Francis Ltd
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Summary:An experimental study was performed to investigate the effect of γ-ray streaming through cylindrical steel and lead ducts having various lengths and radii. In the experiment, 60 Co and 137 Cs point sources, and small sized detector (pulse dosimeter with plastic scintillator) was adopted, source and detector being located at the centers of opposite duct mouths. The albedo-to-direct component ratio is about 30% for steel ducts and 10% for lead at γ-ray energies of 1.25 and 0.661 MeV, with L/R 0 ~10. The measured results were compared with those calculated by the Monte Carlo method; they showed a good agreement. Consequently, the prediction of doses for straight cylindrical ducts having various length-to-radius ratios can be made by the procedures based on the Monte Carlo calculations.
ISSN:0022-3131
1881-1248
DOI:10.1080/18811248.1967.9732779