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Title: Simulation of energy dispersive mode for RITA-type cold neutron triple axis spectrometer SIKA
Authors: Deng, G
Vorderwisch, P
Wu, CM
McIntyre, GJ
Li, WH
Keywords: ANSTO
Cold neutrons
Computerized simulation
Energy transfer
Inelastic scattering
Monte Carlo Method
Neutron spectroscopy
OPAL Reactor
Issue Date: 2-Feb-2012
Publisher: Australian Institute of Physics
Citation: Deng, G., Vorderwisch, P., Wu, C.-M., McIntyre, G. & Li, W.-H. (2012). Simulation of energy dispersive mode for RITA-type cold neutron triple axis spectrometer SIKA. Paper presented to the 36th Annual Condensed Matter and Materials Meeting, Wagga 2012, Charles Sturt University, Wagga Wagga, NSW, 31st January – 3rd February, 2012. Retrieved from:
Abstract: SIKA, a high flux cold triple axis spectrometer at OPAL reactor, is equipped with a 13-blade analyser and position sensitive detector. This multiplexing design endows SIKA with high flexibility to run in either traditional or dispersive modes. In this study, the energy dispersive mode for two different energy transfers is simulated using the Monte Carlo ray-trace package SIMRES. The results show that SIKA could work effectively in this mode at low and intermediate energy transfers with reasonable energy and Q resolution. The simulated energy resolution is about 0.23 meV for an energy transfer of ħω = 5 meV and increases to 1.8 meV for ħω = 15 meV. This work provides a valuable reference for future inelastic neutron scattering experiments on SIKA.
ISBN: 978-0-646-57071-6
Appears in Collections:Conference Publications

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