Monte Carlo simulations of the S-shaped neutron guide
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2020
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Journal of Instrumentation
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Resumo
Neutron transport along guides is governed by the Liouville theorem and the technology
involved has advanced in recent decades. Computer simulations have proven to be useful tools in
the design and conception of neutron guide systems in facilities. In this study, we use a Monte
Carlo method to perform simulations for an S-shaped neutron guide with different dimensions for a
Small-Angle Neutron Scattering (SANS) instrument, through the MCSTAS software. Awavelength
cutoff is observed and shown to be dependent on the geometrical parameters of the guide. Results
for the neutron flux at sample position are presented and greater sensitivity of cutoffs concerning
the curvatures of the guides than to their lengths is noticed. Our results are in agreement with those
obtained from the Acceptance Diagram method and we analyse the beam divergence behaviour
along the S-shaped guide.
Como referenciar
OLIVEIRA, L.P. de; SOUZA, A.P.S.; YOKAICHIYA, F.; GENEZINI, F.A.; FRANCO, M.K.K.D. Monte Carlo simulations of the S-shaped neutron guide. Journal of Instrumentation, v. 15, n. 1, p. 1-14, 2020. DOI: 10.1088/1748-0221/15/01/P01012. Disponível em: http://repositorio.ipen.br/handle/123456789/31371. Acesso em: 20 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.