Calculation of low-energy neutron dose indices and depth doses in the ICRU tissue sphere

Journal Article · Tue Mar 01 04:00:00 EST 1983 · Radiat. Res.; (United States)

DOI:https://doi.org/10.2307/3576023· OSTI ID:5502077

Shiue, Y L; Chilton, A B

Detailed neutron dose distributions were calculated for the ICRU tissue sphere for broad, parallel beams of incident neutrons with 10 different energies ranging from thermal to 0.3 MeV. The calculation was carried out by the Monte Carlo method on the CYBER 175 computer of the University of Illinois. From these calculated data, a set of fluence-to-dose-index conversion factors, needed to establish the allowable limits for exposure to external neutron beams, was obtained. Normalized depth doses along the principal axis at depths of 0.007, 0.3, and 1.0 cm are also provided. The fluence-to-dose-index conversion factors are compared to previous conversion factors based on cylindrical phantoms, and any differences are explained.

• Research Organization: Univ. of Illinois, Urbana
• OSTI ID: 5502077
• Journal Information: Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 93:3; ISSN RAREA
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
655003* -- Medical Physics-- Dosimetry
BARYONS
DATA
DEPTH DOSE DISTRIBUTIONS
DOSES
DOSIMETRY
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FAST NEUTRONS
FERMIONS
HADRONS
INFORMATION
INTERMEDIATE NEUTRONS
MATERIALS
MOCKUP
MONTE CARLO METHOD
NEUTRON DOSIMETRY
NEUTRONS
NUCLEONS
NUMERICAL DATA
PHANTOMS
RADIATION DOSE DISTRIBUTIONS
RADIATION DOSES
SPATIAL DOSE DISTRIBUTIONS
STRUCTURAL MODELS
THERMAL NEUTRONS
TISSUE-EQUIVALENT MATERIALS