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Neutron dosimetry in quasi-monoenergetic fields of 244 and 387 MeV.
IEEE Trans. Nucl. Sci. 60, 299-304 (2013)
This paper describes the results of neutron spectrometry and dose measurements using a Bonner Sphere Spectrometer (BSS) at the ring cyclotron facility of the Research Center for Nuclear Physics (RCNP), Osaka University, Japan. Quasi-monoenergetic neutron fields were generated using the Li-7(p, n)Be-7 reaction and 246 and 389 MeV protons. Neutrons produced at 0 degrees and 30 degrees emission angles were extracted into a time-of-flight (TOF) tunnel, and the energy spectra were measured at a distance of 35 m from the target. To deduce the corresponding neutron spectra from thermal to the nominal maximum energy, the BSS data were unfolded using the MSANDB code and response functions were calculated by Monte Carlo (MC) methods. These spectra are compared to spectral measurements using NE213 organic liquid scintillators applying the TOF method. The results are discussed in terms of ambient dose equivalent H*(10) and compared with the readings of other instruments operated during the experiment
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Publication type Article: Journal article
Document type Scientific Article
Keywords Bonner Sphere Spectrometer ; Neutron Dosimetry ; Neutron Spectroscopy ; Quasi-monoenergetic Neutron Fields; Bonner Sphere Spectrometer ; Response Functions ; Range ; Code ; Sets
Institute(s) Institute of Radiation Protection (ISS)