Extracting source parameters from beam monitors on a chopper spectrometer

D. L. Abernathy; J. L. Niedziela; M. B. Stone

doi:10.1051/epjconf/20158303001

Extracting source parameters from beam monitors on a chopper spectrometer

D. L. Abernathy, J. L. Niedziela, M. B. Stone

Research output: Contribution to journal › Conference article › peer-review

9 Scopus citations

Abstract

The intensity distributions of beam monitors in direct-geometry time-of-flight neutron spectrometers provide important information about the instrument resolution. For short-pulse spallation neutron sources in particular, the asymmetry of the source pulse may be extracted and compared to Monte Carlo source simulations. An explicit formula using a Gaussian-convolved Ikeda-Carpenter distribution is given and compared to data from the ARCS instrument at the Spallation Neutron Source.

Original language	English
Article number	03001
Journal	EPJ Web of Conferences
Volume	83
DOIs	https://doi.org/10.1051/epjconf/20158303001
State	Published - Jan 23 2015
Event	11th International Conference on Quasielastic Neutron Scattering, QENS 2014 and 6th International Workshop on Inelastic Neutron Spectrometers, WINS 2014 - Autrans, France Duration: May 11 2014 → May 16 2014

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title = "Extracting source parameters from beam monitors on a chopper spectrometer",

abstract = "The intensity distributions of beam monitors in direct-geometry time-of-flight neutron spectrometers provide important information about the instrument resolution. For short-pulse spallation neutron sources in particular, the asymmetry of the source pulse may be extracted and compared to Monte Carlo source simulations. An explicit formula using a Gaussian-convolved Ikeda-Carpenter distribution is given and compared to data from the ARCS instrument at the Spallation Neutron Source.",

author = "Abernathy, {D. L.} and Niedziela, {J. L.} and Stone, {M. B.}",

note = "Publisher Copyright: {\textcopyright} 2015 Owned by the authors, published by EDP Sciences.; 11th International Conference on Quasielastic Neutron Scattering, QENS 2014 and 6th International Workshop on Inelastic Neutron Spectrometers, WINS 2014 ; Conference date: 11-05-2014 Through 16-05-2014",

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AU - Abernathy, D. L.

AU - Niedziela, J. L.

AU - Stone, M. B.

PY - 2015/1/23

Y1 - 2015/1/23

N2 - The intensity distributions of beam monitors in direct-geometry time-of-flight neutron spectrometers provide important information about the instrument resolution. For short-pulse spallation neutron sources in particular, the asymmetry of the source pulse may be extracted and compared to Monte Carlo source simulations. An explicit formula using a Gaussian-convolved Ikeda-Carpenter distribution is given and compared to data from the ARCS instrument at the Spallation Neutron Source.

AB - The intensity distributions of beam monitors in direct-geometry time-of-flight neutron spectrometers provide important information about the instrument resolution. For short-pulse spallation neutron sources in particular, the asymmetry of the source pulse may be extracted and compared to Monte Carlo source simulations. An explicit formula using a Gaussian-convolved Ikeda-Carpenter distribution is given and compared to data from the ARCS instrument at the Spallation Neutron Source.

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U2 - 10.1051/epjconf/20158303001

DO - 10.1051/epjconf/20158303001

M3 - Conference article

AN - SCOPUS:84921771016

SN - 2101-6275

VL - 83

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 03001

T2 - 11th International Conference on Quasielastic Neutron Scattering, QENS 2014 and 6th International Workshop on Inelastic Neutron Spectrometers, WINS 2014

Y2 - 11 May 2014 through 16 May 2014

ER -

Extracting source parameters from beam monitors on a chopper spectrometer

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