2007
DOI: 10.1093/rpd/ncm072
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Determination of neutron energy spectra inside a water phantom irradiated by 64 MeV neutrons

Abstract: A NE230 deuterated liquid scintillator detector (25 mm diameter x 25 mm) has been used to investigate neutron energy spectra as a function of position in a water phantom under irradiation by a quasi-monoenergetic 64 MeV neutron beam. Neutron energy spectra are obtained from measurements of pulse height spectra by the NE230 detector using the Bayesian unfolding code MAXED. The experimentally measured energy spectra are compared with spectra calculated by Monte Carlo simulation using the code MCNPX.

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Cited by 4 publications
(3 citation statements)
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“…The time-of flight channel T was calibrated into incident neutron energy E. The LT-distributions were used for three purposes: (1) to determine the efficiency of the NE230 detector as a function of incident neutron energy E; (2) to form a response matrix of dimensions 43 (E) × 104 (L) for the NE230 detector; and (3) to validate the unfolding procedure using MAXED. Details can be found in an earlier publication [2].…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…The time-of flight channel T was calibrated into incident neutron energy E. The LT-distributions were used for three purposes: (1) to determine the efficiency of the NE230 detector as a function of incident neutron energy E; (2) to form a response matrix of dimensions 43 (E) × 104 (L) for the NE230 detector; and (3) to validate the unfolding procedure using MAXED. Details can be found in an earlier publication [2].…”
Section: Methodsmentioning
confidence: 99%
“…The neutron spectrometer used is based on a NE230 deuterated liquid scintillator (25 mm diameter × 25 mm) that was developed to measure neutron energy spectra as a function of position in a water phantom irradiated by neutrons of energy up to ~ 64 MeV. More details on the spectrometer can be found in [2]. A deuterated scintillator was used instead of the more widely use natural hydrogen scintillator in order to discriminate against backgrounds that can arise from n-p scattering in the water.…”
Section: Introductionmentioning
confidence: 99%
“…Neutron beam monitoring can also be performed by placing neutron detectors close to the beam and monitoring the peripheral or halo part of the collimated beam [15,67]. If the collimator has an additional non-zero-degree opening, the beam from the opening can be used for monitoring [22,57]. Detectors placed close to the target can serve as neutron beam monitors by measuring neutrons around the target [12,72,73,92].…”
Section: Neutron Beam Monitormentioning
confidence: 99%