Investigation of propagation algorithms for ray-tracing simulation of polarized neutrons

Publication: Research - peer-reviewJournal article – Annual report year: 2014

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Ray-tracing of polarized neutrons faces a challenge when the neutron propagates through an inhomogeneous magnetic field. This affects simulations of novel instruments using encoding of energy or angle into the neutron spin. We here present a new implementation of propagation of polarized neutrons within the McStas simulation package and show that it outperforms the de-facto standard method implemented in the NISP package by Seeger and Daemen. We include simulation of a simplified model of a spin-echo instrument, including a simple virtual experiment.
Original languageEnglish
JournalJournal of Neutron Research
Volume17
Issue number1
Pages (from-to)27-34
ISSN1023-8166
DOIs
StatePublished - 2014
CitationsWeb of Science® Times Cited: No match on DOI

    Keywords

  • Ray-tracing, Neutron spin-echo, Larmor precession, McStas, Algorithms
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