TY - JOUR
T1 - Modeling interactions of intermediate-energy neutrons in a plastic scintillator array with Geant4
AU - Kohley, Z.
AU - Lunderberg, E.
AU - Deyoung, P. A.
AU - Roeder, B. T.
AU - Baumann, T.
AU - Christian, G.
AU - Mosby, S.
AU - Smith, J. K.
AU - Snyder, J.
AU - Spyrou, A.
AU - Thoennessen, M.
N1 - Funding Information:
This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number(s) DE-NA0000979 . This work was also supported by the National Science Foundation under grant No PHY06-06007 and PHY11-02511 . One of the authors (BR) acknowledges the financial support of the European Community under the FP6 EURISOL-DS project (contract no 515768 ). He also wishes to thank his colleagues FM Marqués, JL Lecouey and NA Orr from LPC-Caen for their aid in the development of menate _ r .
PY - 2012/8/1
Y1 - 2012/8/1
N2 - A Monte Carlo simulation of a large-area neutron time-of-flight detector, built on the Geant4 framework, has been compared with an experimental measurement of the B16→B15n decay produced from a 55 MeV/u 17C beam. The ability of the Monte Carlo simulation to reproduce the intermediate-energy neutron interactions within the detector has been explored using both the stock Geant4 physics processes and a custom neutron interaction model, menate-r. The stock Geant4 physics processes were unable to reproduce the experimental observables, while excellent agreement was obtained through the inclusion of the menate-r model within Geant4. The differences between the two approaches are shown to be related to the modeling of the neutron-carbon inelastic reactions. Additionally, the use of menate-r provided accurate reproduction of experimental signals associated with neutron scattering within the detector. These results provide validation of the Monte Carlo simulation for modeling measurements of multiple neutrons where the identification and removal of false neutron signals, due to multiple neutron scattering, are required.
AB - A Monte Carlo simulation of a large-area neutron time-of-flight detector, built on the Geant4 framework, has been compared with an experimental measurement of the B16→B15n decay produced from a 55 MeV/u 17C beam. The ability of the Monte Carlo simulation to reproduce the intermediate-energy neutron interactions within the detector has been explored using both the stock Geant4 physics processes and a custom neutron interaction model, menate-r. The stock Geant4 physics processes were unable to reproduce the experimental observables, while excellent agreement was obtained through the inclusion of the menate-r model within Geant4. The differences between the two approaches are shown to be related to the modeling of the neutron-carbon inelastic reactions. Additionally, the use of menate-r provided accurate reproduction of experimental signals associated with neutron scattering within the detector. These results provide validation of the Monte Carlo simulation for modeling measurements of multiple neutrons where the identification and removal of false neutron signals, due to multiple neutron scattering, are required.
KW - Cross-talk
KW - Geant4
KW - Monte Carlo simulation
KW - Neutron detection
KW - Neutron simulation
KW - Plastic scintillator array
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U2 - 10.1016/j.nima.2012.04.060
DO - 10.1016/j.nima.2012.04.060
M3 - Article
AN - SCOPUS:84860673346
VL - 682
SP - 59
EP - 65
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
ER -