Extracting source parameters from beam monitors on a chopper spectrometer

被引：9

作者：

Abernathy, D. L. ^{[1
]}

Niedziela, J. L. ^{[2
]}

Stone, M. B. ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA

[2] Oak Ridge Natl Lab, Instrument & Source Div, Oak Ridge, TN 37831 USA

来源：

QENS/WINS 2014 - 11TH INTERNATIONAL CONFERENCE ON QUASIELASTIC NEUTRON SCATTERING AND 6TH INTERNATIONAL WORKSHOP ON INELASTIC NEUTRON SPECTROMETERS | 2015年 / 83卷

关键词：

D O I：

10.1051/epjconf/20158303001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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