Neutron production from 200–500 MeV proton interaction with spacecraft materials

We report on detailed energy spectra of neutron production >14 MeV from collisions of 200–500 MeV protons with combinations of aluminium, graphite and polyethylene. Comparisons of normalised neutron spectra are made with respect to incident proton energy, angle of neutron production and material....

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Bibliographic Details
Published in:Radiation protection dosimetry 2005-12, Vol.116 (1-4), p.125-130
Main Authors: Maurer, Richard H., Kinnison, James D., Roth, David R.
Format: Article
Language:English
Subjects:
Construction Materials - analysis
Linear Energy Transfer
Materials Testing
Neutrons
Protons
Radiation Dosage
Radiation Protection - instrumentation
Radiation Protection - methods
Radiometry - methods
Scattering, Radiation
Spacecraft
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Summary:We report on detailed energy spectra of neutron production >14 MeV from collisions of 200–500 MeV protons with combinations of aluminium, graphite and polyethylene. Comparisons of normalised neutron spectra are made with respect to incident proton energy, angle of neutron production and material. In general, carbon (graphite) or polyethylene (by itself or in combination with aluminium) reduce secondary neutron production >14 MeV relative to the production from interactions in aluminium.
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/nci157