Journal article
Numerical simulation study of the performance of a small neutron three axis spectrometer
This article describes Monte Carlo computer simulations comparing the performances of a conventional neutron three axis spectrometer (TAS) and a micro-TAS, a μTAS, designed to be as compact as seems practical. The simulations show that the μTAS delivers performance (intensity at equal resolution) equivalent to that of a normal TAS.
The μTAS should be very cheap to build and a “farm” of several such small machines at a single conventional instrument position should greatly increase the TAS beam time available from a given source. A μTAS can deliver significantly larger beam angular divergence at the sample and detector, thus extending the accessible resolution-intensity range, whether using flat or curved monochromating crystals.
Language: | English |
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Year: | 2011 |
ISSN: | 18729576 and 01689002 |
Types: | Journal article |
DOI: | 10.1016/j.nima.2011.01.118 |