Citation
S. Jahn et Jb. Suck, Monte-Carlo simulation of a neutron Brillouin scattering spectrometer, NUCL INST A, 438(2-3), 1999, pp. 452-459
Citations number
8
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002
→ ACNP
Volume
438
Issue
2-3
Year of publication
1999
Pages
452 - 459
Database
ISI
SICI code
0168-9002(199912)438:2-3<452:MSOANB>2.0.ZU;2-8
Abstract
A Monte-Carlo simulation was done to optimise the setup of a new type of ti
me-of-flight spectrometer, a thermal neutron Brillouin scattering (NBS) spe
ctrometer. After collimation of the incident white neutron beam five incide
nt energies between 20 and 138 meV can be obtained from four different mono
chromator crystal faces. The monochromatic beam is split into nine pencil-l
ike separate beams to improve the e-resolution of the NBS-spectrometer. Inc
luding the time resolution of the Fermi chopper (after a background chopper
) an energy resolution for elastic scattering between 2% and 7% and a momen
tum transfer resolution of 1.3-2.0% are obtained. (C) 1999 Elsevier Science
B.V. All rights reserved.