TY - JOUR
T1 - Design of the cold neutron triple-axis spectrometer at the China Advanced Research Reactor
AU - Cheng, P.
AU - Zhang, Hongxia
AU - Bao, W.
AU - Schneidewind, A.
AU - Link, P.
AU - Grünwald, A.T.D.
AU - Georgii, R.
AU - Hao, L.J.
AU - Liu, Y.T.
PY - 2016/6/11
Y1 - 2016/6/11
N2 - The design of the first cold neutron triple-axis spectrometer at the China Advanced Research Reactor is presented. Based on the Monte Carlo simulations using neutron ray-tracing program McStas, the parameters of major neutron optics in this instrument are optimized. The neutron flux at sample position is estimated to be 5.6 ×107 n/cm2/s at neutron incident energy Ei=5 meV when the reactor operates normally at the designed 60 MW power. The performances of several neutron supermirror polarizing devices are compared and their critical parameters are optimized for this spectrometer. The polarization analysis will be realized with a flexible switch from the unpolarized experimental mode. © 2016 Elsevier B.V. All rights reserved.
AB - The design of the first cold neutron triple-axis spectrometer at the China Advanced Research Reactor is presented. Based on the Monte Carlo simulations using neutron ray-tracing program McStas, the parameters of major neutron optics in this instrument are optimized. The neutron flux at sample position is estimated to be 5.6 ×107 n/cm2/s at neutron incident energy Ei=5 meV when the reactor operates normally at the designed 60 MW power. The performances of several neutron supermirror polarizing devices are compared and their critical parameters are optimized for this spectrometer. The polarization analysis will be realized with a flexible switch from the unpolarized experimental mode. © 2016 Elsevier B.V. All rights reserved.
KW - McStas
KW - Monte Carlo simulation
KW - Polarizing devices
KW - Triple-axis spectrometer
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U2 - 10.1016/j.nima.2016.03.045
DO - 10.1016/j.nima.2016.03.045
M3 - RGC 21 - Publication in refereed journal
SN - 0168-9002
VL - 821
SP - 17
EP - 22
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
ER -