Depth Dose Distribution for252Cf Source Using Solid State Detectors
作者:
H. R. Moustafa,
M. S. Abdel-Wahab,
H. M. Eissa,
S. El Fiki,
N. El Enany,
R. I. Mohamed,
M. A. El Feky,
期刊:
Isotopenpraxis Isotopes in Environmental and Health Studies
(Taylor Available online 1991)
卷期:
Volume 27,
issue 4
页码: 205-208
ISSN:0021-1915
年代: 1991
DOI:10.1080/10256019108622510
出版商: Taylor & Francis Group
关键词: depth dose;dosimetry;fast and thermal neutrons;neutron source;phantom
数据来源: Taylor
摘要:
LiF (600 and 700) and plastic detector were used for measuring fast and thermal neutrons and γ-ray doses from252Cf source in tissue equivalent phantom. Conversion factors as well as related quality factors were used for absorbed and equivalent dose calculations. Two exposure positions were used: source at 30 cm and in contact with phatnom surface. The contribution of thermal and fast neutrons in both absorbed dose and equivalent dose reaches a maximum value at 3.5 cm while the maximum for γ-ray is at 8.5 cm. The build up and attenuation in tissue and the corresponding relaxation length were evaluated.
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