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Pioch, C. ; Mares, V. ; Rühm, W. ; Iwase, H.* ; Iwamoto, Y.* ; Sato, T.* ; Hagiwara, M.* ; Satoh, D.* ; Nakane, Y.* ; Nakashima, H.* ; Sakamoto, Y.* ; Yashima, H.* ; Matsumoto, T.* ; Masuda, A.* ; Nishiyama, J.* ; Itoga, T.* ; Theis, C.* ; Feldbaumer, E.* ; Jägerhofer, L.* ; Tamii, A.* ; Hatanaka, K.* ; Nakamura, T.*

Calibration of a Bonner sphere spectrometer in quasi-monoenergetic neutron fields of 244 and 387 MeV.

J. Instrum. 6:P10015 (2011)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
This paper describes the results of calibration measurements for a Bonner sphere spectrometer (BSS) with 3He proportional counter performed in quasi-monoenergetic neutron fields at the Research Center for Nuclear Physics (RCNP) at the University of Osaka, Japan. Using 246 MeV and 389 MeV proton beams, neutron fields with nominal peak energies of 244 MeV and 387 MeV were generated via 7Li(p,n)7Be reactions. At high energies, the neutron spectra were measured by means of the time-of-flight (TOF) method. The low-energy part of the neutron spectra were determined by BSS measurements down to thermal energies using the MSANDB unfolding code and three different sets of response functions. These were obtained by means of Monte Carlo (MC) calculations including various codes and intra-nuclear cascade (INC) models. Unfolded BSS fluence rates were additionally confirmed by GEANT4 calculations. For calibration of the BSS, measured count rates were corrected for low-energy contributions and compared with count rates calculated using TOF data and various response functions. In addition, measured response values were compared with mono-energetic response calculations, and best agreement was found with GEANT4 results using the Bertini INC model.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Instrumentation for neutron sources; Models and simulations; Dosimetry concepts and apparatus; Neutron detectors (cold, thermal, fast neutrons)
Sprache englisch
Veröffentlichungsjahr 2011
HGF-Berichtsjahr 2011
ISSN (print) / ISBN 1748-0221
e-ISSN 1748-0221
Zeitschrift Journal of Instrumentation
Quellenangaben Band: 6, Heft: 10, Seiten: , Artikelnummer: P10015 Supplement: ,
Verlag Institute of Physics Publishing (IOP)
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 10.1088/1748-0221/6/10/P10015
Scopus ID 82955225165
Erfassungsdatum 2011-11-10
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