DOUBLE DIFFERENTIAL DISTRIBUTIONS AND ATTENUATION IN CONCRETE FOR NEUTRONS PRODUCED BY 100-400 MEV PROTONS ON IRON AND TISSUE TARGETS

Authors
AGOSTEO S FASSO A FERRARI A SALA PR SILARI M DEFATIS PT
Citation
S. Agosteo et al., DOUBLE DIFFERENTIAL DISTRIBUTIONS AND ATTENUATION IN CONCRETE FOR NEUTRONS PRODUCED BY 100-400 MEV PROTONS ON IRON AND TISSUE TARGETS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 114(1-2), 1996, pp. 70-80
Citations number
29
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
114
Issue
1-2
Year of publication
1996
Pages
70 - 80
Database
ISI
SICI code
0168-583X(1996)114:1-2<70:DDDAAI>2.0.ZU;2-0
Abstract
Double differential distributions of neutrons produced by 100, 150, 20 0, 250 and 400 MeV protons stopped in thick iron and soft tissue targe ts were calculated by two Monte Carlo codes, FLUKA and LCS, from 0(for ward shielding) to 180 degrees. The results are compared with calculat ed and experimental data available in the literature. The attenuation in ordinary concrete of the dose equivalent due to neutrons and other particles was calculated. The contribution due to photons and protons was found to range from a few percent up to 50% of the total dose equi valent. Source terms and attenuation lengths are given as a function o f energy and emission angle.