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Open Access Green as soon as Postprint is submitted to ZB.
The determination of gamma doses due to capture and inelastic scattering processes in a trunk phantom irradiated with 15 MeV neutrons.
Radiat. Prot. Dosim. 23, 305-308 (1988)
The aim of these investigations was to improve gamma dose determination with Geiger-Muller counters. The required values of the responses of the detector for neutrons and gamma rays were taken from the literature. The time discrimination of the signals, a method used to discriminate neutron and gamma radiation in neutron response measurements, makes possible the determination of the gamma doses caused by (n,n'γ) and (n,γ) processes. The experiments were performed with an accelerator in pulse mode. The radiation time was selected to be as small as possible to reduce the build-up of thermal neutrons in the phantom during irradiation. The pause time was chosen to allow the decrease of thermal neutrons produced after moderation. The different gamma spectra emitted by (n,n'γ) and (n,γ) processes were considered in calculating the gamma dose. In the centre of the trunk of the water phantom, the H(γ(n,n'γ))/H(γ(n,γ)) ratio is given by 2.0 ± 0.2.
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Publication type
Article: Journal article
Document type
Scientific Article
ISSN (print) / ISBN
0144-8420
e-ISSN
1742-3406
Journal
Radiation Protection Dosimetry
Quellenangaben
Volume: 23,
Issue: 1-4,
Pages: 305-308
Publisher
Oxford University Press
Publishing Place
Oxford
Reviewing status
Peer reviewed
Institute(s)
Abteilung Biophysikalische Strahlenforschung