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How to polarise all neutrons in one beam : A high performance polariser and neutron transport system

Rodriguez, D. Martin LU ; Bentley, P. M. LU and Pappas, C. (2016) In Journal of Physics: Conference Series 746(1).
Abstract

Polarised neutron beams are used in disciplines as diverse as magnetism,soft matter or biology. However, most of these applications often suffer from low flux also because the existing neutron polarising methods imply the filtering of one of the spin states, with a transmission of 50% at maximum. With the purpose of using all neutrons that are usually discarded, we propose a system that splits them according to their polarisation, flips them to match the spin direction, and then focuses them at the sample. Monte Carlo (MC) simulations show that this is achievable over a wide wavelength range and with an outstanding performance at the price of a more divergent neutron beam at the sample position.

Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics: Conference Series
volume
746
issue
1
publisher
IOP Publishing
external identifiers
  • scopus:84994344934
ISSN
1742-6588
DOI
10.1088/1742-6596/746/1/012015
language
English
LU publication?
yes
id
250920c8-df60-4d4c-a5ca-b1e17ad4a9e6
date added to LUP
2016-12-07 11:15:07
date last changed
2017-04-10 09:38:17
@article{250920c8-df60-4d4c-a5ca-b1e17ad4a9e6,
  abstract     = {<p>Polarised neutron beams are used in disciplines as diverse as magnetism,soft matter or biology. However, most of these applications often suffer from low flux also because the existing neutron polarising methods imply the filtering of one of the spin states, with a transmission of 50% at maximum. With the purpose of using all neutrons that are usually discarded, we propose a system that splits them according to their polarisation, flips them to match the spin direction, and then focuses them at the sample. Monte Carlo (MC) simulations show that this is achievable over a wide wavelength range and with an outstanding performance at the price of a more divergent neutron beam at the sample position.</p>},
  articleno    = {012015},
  author       = {Rodriguez, D. Martin and Bentley, P. M. and Pappas, C.},
  issn         = {1742-6588},
  language     = {eng},
  month        = {10},
  number       = {1},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics: Conference Series},
  title        = {How to polarise all neutrons in one beam : A high performance polariser and neutron transport system},
  url          = {http://dx.doi.org/10.1088/1742-6596/746/1/012015},
  volume       = {746},
  year         = {2016},
}