TY - JOUR
T1 - Monte Carlo study of the neutron time emission spectra at the Manuel Lujan Jr. Neutron Scattering Center
AU - Mocko, M.
AU - Muhrer, G.
AU - Ino, T.
AU - Ooi, M.
AU - Daemen, L. L.
AU - Kiyanagi, Y.
PY - 2008/9/11
Y1 - 2008/9/11
N2 - A campaign of neutron-beam characterization measurements was carried out in 2001-2002 at the Manuel Lujan Jr. Neutron Scattering Center (Lujan Center) at the Los Alamos Neutron Science Center (LANSCE), Los Alamos National Laboratory. These experiments provided a valuable comprehensive data set to define the neutron-beam characteristics of the Lujan Center's target-moderator-reflector-shield assembly. To validate the current computer models of the target assembly, we carried out multiple Monte Carlo calculations of the neutron time emission pulses. The results of our simulations are directly compared with the experimental data characterizing five of the six moderators installed in the Lujan target-moderator-reflector-shield system. Our results not only present an important benchmark test of the MCNPX Monte Carlo transport model of the target assembly, but also show the capabilities of the MCNPX code in designing upgrade and future spallation neutron sources.
AB - A campaign of neutron-beam characterization measurements was carried out in 2001-2002 at the Manuel Lujan Jr. Neutron Scattering Center (Lujan Center) at the Los Alamos Neutron Science Center (LANSCE), Los Alamos National Laboratory. These experiments provided a valuable comprehensive data set to define the neutron-beam characteristics of the Lujan Center's target-moderator-reflector-shield assembly. To validate the current computer models of the target assembly, we carried out multiple Monte Carlo calculations of the neutron time emission pulses. The results of our simulations are directly compared with the experimental data characterizing five of the six moderators installed in the Lujan target-moderator-reflector-shield system. Our results not only present an important benchmark test of the MCNPX Monte Carlo transport model of the target assembly, but also show the capabilities of the MCNPX code in designing upgrade and future spallation neutron sources.
KW - MCNPX validation
KW - Monte Carlo simulation
KW - Neutron moderator
KW - Neutron time emission spectrum
UR - http://www.scopus.com/inward/record.url?scp=50049128129&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2008.07.034
DO - 10.1016/j.nima.2008.07.034
M3 - Article
AN - SCOPUS:50049128129
SN - 0168-9002
VL - 594
SP - 373
EP - 381
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
IS - 3
ER -