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Caresana, M.* ; Denker, A.* ; Esposito, A.* ; Ferrarini, M.* ; Golnik, N.* ; Hohmann, E.* ; Leuschner, A.* ; Luszik-Bhadra, M.* ; Manessi, G.* ; Mayer, S.* ; Ott, K.* ; Röhrich, J.* ; Silari, M.* ; Trompier, F.* ; Volnhals, M. ; Wielunski, M.

Intercomparison of radiation protection instrumentation in a pulsed neutron field.

Nucl. Instrum. Methods Phys. Res. Sect. A 737, 203-213 (2014)
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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
In the framework of the EURADOS working group 11, an intercomparison of active neutron survey meters was performed in a pulsed neutron field (PNF). The aim of the exercise was to evaluate the performances of various neutron instruments, including commercially available rem-counters, personal dosemeters and instrument prototypes. The measurements took place at the cyclotron of the Helmholtz-Zentrum Berlin für Materialien und Energie GmbH. The cyclotron is routinely used for proton therapy of ocular tumours, but an experimental area is also available. For the therapy the machine accelerates protons to 68 MeV. The interaction of the proton beam with a thick tungsten target produces a neutron field with energy up to about 60 MeV. One interesting feature of the cyclotron is that the beam can be delivered in bursts, with the possibility to modify in a simple and flexible way the burst length and the ion current. Through this possibility one can obtain radiation bursts of variable duration and intensity. All instruments were placed in a reference position and irradiated with neutrons delivered in bursts of different intensity. The analysis of the instrument response as a function of the burst charge (the total electric charge of the protons in the burst shot onto the tungsten target) permitted to assess for each device the dose underestimation due to the time structure of the radiation field. The personal neutron dosemeters were exposed on a standard PMMA slab phantom and the response linearity was evaluated.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Neutron detection; Neutron survey meter; Proton beam; Pulsed neutron field; Rem Counter Linus; Recombination Chamber; Range; Meter; Sensitivity; Calibration; Dosimeters
Sprache englisch
Veröffentlichungsjahr 2014
HGF-Berichtsjahr 2014
ISSN (print) / ISBN 0168-9002
e-ISSN 1872-9576
Zeitschrift Nuclear Instruments and Methods in Physics Research Section A
Quellenangaben Band: 737, Heft: , Seiten: 203-213 Artikelnummer: , Supplement: ,
Verlag Elsevier
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Radiation Protection (ISS)
POF Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er) Radiation Sciences
PSP-Element(e) G-501100-001
DOI 10.1016/j.nima.2013.11.073
WOS ID WOS:000329404500030
Scopus ID 84890454597
Erfassungsdatum 2014-01-30
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