TY - GEN
T1 - From BASIS to MIRACLES: Benchmarking and perspectives for high- resolution neutron spectroscopy at the ESS
AU - Tsapatsaris, Nikolaos
AU - Nunes Bordallo, Heloisa
PY - 2015/1/23
Y1 - 2015/1/23
N2 - Results based on virtual instrument models for the first high-flux, high-resolution, spallation based, backscattering spectrometer, BASIS are presented in this paper. These were verified using the Monte Carlo instrument simulation packages McStas and VITESS. Excellent agreement of the neutron count rate at the sample position between the virtual instrument simulation and experiments was found, in both time and energy distributions. This achievement was only possible after a new component for a bent single crystal analyser in McStas, using a Gaussian approximation, was developed. These findings are pivotal to the conceptual design of the next generation backscattering spectrometer, MIRACLES at the European Spallation Source.
AB - Results based on virtual instrument models for the first high-flux, high-resolution, spallation based, backscattering spectrometer, BASIS are presented in this paper. These were verified using the Monte Carlo instrument simulation packages McStas and VITESS. Excellent agreement of the neutron count rate at the sample position between the virtual instrument simulation and experiments was found, in both time and energy distributions. This achievement was only possible after a new component for a bent single crystal analyser in McStas, using a Gaussian approximation, was developed. These findings are pivotal to the conceptual design of the next generation backscattering spectrometer, MIRACLES at the European Spallation Source.
U2 - 10.1051/epjconf/20158303015
DO - 10.1051/epjconf/20158303015
M3 - Conference article
SN - 2100-014X
VL - 83
JO - E P J Web of Conferences
JF - E P J Web of Conferences
M1 - 03015
ER -