TY - JOUR
T1 - An NCrystal extension for thermal neutron scattering in MCNP
AU - Grammer, Kyle B.
N1 - Publisher Copyright:
© 2025
PY - 2026/3
Y1 - 2026/3
N2 - A new extension for MCNP has been developed that incorporates the NCrystal thermal scattering package in the form of a Fortran to C++ wrapper, which adds the capability to describe thermal neutron scattering in the NCrystal formalism instead of the ACE tabular format. This can be used to described poly- or single-crystalline materials as well as liquids. The functionality of this extension to MCNP is illustrated using a layered crystal monochromator, leakage of neutrons from a moderating sphere of material, and by simulating criticality benchmarks.
AB - A new extension for MCNP has been developed that incorporates the NCrystal thermal scattering package in the form of a Fortran to C++ wrapper, which adds the capability to describe thermal neutron scattering in the NCrystal formalism instead of the ACE tabular format. This can be used to described poly- or single-crystalline materials as well as liquids. The functionality of this extension to MCNP is illustrated using a layered crystal monochromator, leakage of neutrons from a moderating sphere of material, and by simulating criticality benchmarks.
KW - MCNP
KW - Monte Carlo neutron transport
KW - Particle tracking
KW - Radiation shielding
UR - https://www.scopus.com/pages/publications/105018858672
U2 - 10.1016/j.nima.2025.171079
DO - 10.1016/j.nima.2025.171079
M3 - Article
AN - SCOPUS:105018858672
SN - 0168-9002
VL - 1083
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
M1 - 171079
ER -