Comparative Study of Depth Dose Distribution of Fast Neutrons Using Solid State Nuclear Track Detectors
作者:
H. R. Moustafa,
M. S. Abdel-Wahab,
N. El Enany,
S. El Fiki,
M. A. Sharaf,
R. L. 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: 202-205
ISSN:0021-1915
年代: 1991
DOI:10.1080/10256019108622509
出版商: Taylor & Francis Group
关键词: depth dose;dosimetry;fast neutrons;neutron source;phantom;plastic detectors
数据来源: Taylor
摘要:
A comparative study was made for measuring neutron depth dose distribution in a water phantom by means of different solid state nuclear track detectors. The used detectors were Makrofol, CR-39 and LR-115 with threshold energies of 1 and 0.1 MeV, respectively. Two exposure positions were used, the source in contact with the surface and at 30 cm from the phantom surface. The fluence distribution of252Cf as a function of distance in air and in the water phantom were investigated. It was found that the neutron build up factor depends on the irradiation geometry, its values were 1.7 and 1.4 for both exposure positions. These results are in good agreement with the calculated results given in literature. The neutron attenuation and relaxation length had been also determined.
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