Momentum-distribution spectroscopy using deep inelastic neutron scattering
Momentum-distribution spectroscopy using deep inelastic neutron scattering
复制标题
使用深非弹性中子散射的动量分布谱
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
J. Noreland
中科院分区：
文献类型：
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作者：
G. Reiter;J. Mayers;J. Noreland
我们证明，来自氢（或其他轻核）的深层非弹性中子散射可用于测量对目标原子动量分布的非谐波贡献谱，且具有已知的高精度。该方法用于确定氢键系统${\mathrm{KHC}}_{2}{\mathrm{O}}_{4}$（二草酸钾）中氢的动量分布，其中获得的23个非调和系数优于$2\ensuremath{\sigma}$水平。在所有重要的动量值处，获得的动量分布的精度优于几个百分点。
We show that deep inelastic neutron scattering from hydrogen (or other light nuclei) can be used to measure a spectrum of anharmonic contributions to the target atom momentum distribution with high and known accuracy. The method is applied here to determine the momentum distribution of the hydrogen in the hydrogen bonded system ${\mathrm{KHC}}_{2}{\mathrm{O}}_{4}$ (potassium binoxalate), where 23 anharmonic coefficients are obtained at better than the $2\ensuremath{\sigma}$ level. The momentum distribution is obtained to an accuracy of better than few percent at all significant values of momentum.