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Baiocco, G.* ; Barbieri, S.* ; Babini, G.* ; Morini, J.* ; Friedland, W. ; Kundrát, P. ; Schmitt, E. ; Puchalska, M.* ; Giesen, U.* ; Nolte, R.* ; Ottolenghi, A.*

At the physics-biology interface: The neutron affair.

Radiat. Prot. Dosim. 180, 278-281 (2017)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
We present predictions of neutron relative biological effectiveness (RBE) for cell irradiations with neutron beams at PTBBraunschweig. A neutron RBE model is adopted to evaluate initial DNA damage induction given the neutron-induced charged particle field. RBE values are predicted for cell exposures to quasi-monoenergetic beams (0.56 MeV, 1.2 MeV) and to a broad energy distribution neutron field with dose-averaged energy of 5.75 MeV. Results are compared to what obtained with our RBE predictions for neutrons at similar energies, when a 30-cm sphere is irradiated in an isotropic neutron field. RBE values for experimental conditions are higher for the lowest neutron energies, because, as expected, target geometry determines the weight of the low-effectiveness photon component of the neutron dose. These results highlight the importance of characterizing neutron fields in terms of physical interactions, to fully understand neutron-induced biological effects, contributing to risk estimation and to the improvement of radiation protection standards.
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Publication type Article: Journal article
Document type Scientific Article
Language
Publication Year 2017
HGF-reported in Year 2017
ISSN (print) / ISBN 0144-8420
e-ISSN 1742-3406
Journal Radiation Protection Dosimetry
Quellenangaben Volume: 180, Issue: 1-4, Pages: 278-281 Article Number: , Supplement: ,
Publisher Oxford University Press
Publishing Place Oxford
Reviewing status Peer reviewed
Institute(s) Institute of Radiation Protection (ISS)
POF-Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Research field(s) Radiation Sciences
PSP Element(s) G-501100-004
DOI 10.1093/rpd/ncx222
WOS ID WOS:000440983000058
Scopus ID 85055086733
PubMed ID 29069437
Erfassungsdatum 2017-11-10
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