Contamination from the next higher incident energy in inelastic neutron scattering measurements with multiple incident energies on chopper spectrometers
Contamination from the next higher incident energy in inelastic neutron scattering measurements with multiple incident energies on chopper spectrometers
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斩波光谱仪上多个入射能量的非弹性中子散射测量中下一个更高入射能量的污染
DOI：
10.1016/j.nima.2013.07.080
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
and M. Fujita
中科院分区：
文献类型：
--
作者：
R. Kajimoto;M. Nakamura;K. Nakajima;and M. Fujita
一种在中子斩波谱仪上同时利用多个入射能量(EIS)的高效测量技术最近在凝聚态物质的非弹性中子散射研究中变得流行起来。然而，目标入射能量的非弹性散射谱可能会受到其他能量的散射过程的污染。在这项研究中，我们定量地评估了这类测量中目标Ei的光谱可能受到下一个更高Ei的散射过程的污染的程度。我们估计了日本质子加速器研究综合体(J-PARC)的4Seasons和AMATERAS中子斩波谱仪的下一个较高散射的相对强度。
A highly efficient measurement technique utilizing multiple incident energies (Eis) simultaneously on a neutron chopper spectrometer has recently become popular in inelastic neutron scattering studies of condensed matter. However, the inelastic scattering spectrum of a target incident energy can be contaminated by the scattering process of otherEis. In this study, we quantitatively evaluated the extent to which the spectrum of a targetEiin this type of measurement can be contaminated by the scattering process of the next higherEi. We estimated the relative intensity of the scattering from the next higherEifor the neutron chopper spectrometers 4SEASONS and AMATERAS at the Japan Proton Accelerator Research Complex (J-PARC).