Possible options for efficient wide-band polychromatic measurements using chopper spectrometers at pulsed sources
Possible options for efficient wide-band polychromatic measurements using chopper spectrometers at pulsed sources
复制标题
使用斩波光谱仪在脉冲源进行高效宽带多色测量的可能选择
DOI：
10.1051/epjconf/202227202012
复制
发表时间：
2022
影响因子：
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通讯作者：
Kambara Wataru
中科院分区：
文献类型：
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作者：
Nakajima Kenji;Kikuchi Tatsuya;Ohira-Kawamura Seiko;Kambara Wataru
在脉冲源处使用斩波器光谱仪进行多色入射能量测量使我们能够以不同的能量分辨率测量动态，即，不同的时间窗口，一次测量。通过增加用于单次测量的可能的时间窗口，增强了这种测量的效率和有用性。这是通过允许来自飞行时间图上的不同源脉冲的不同EI的轨迹的交叉（交错轨迹）来实现的。我们将介绍一个实际的情况下，交错的轨迹上AMATERAS，冷中子斩波器谱仪安装在J-PARC，连同我们的经验。我们的一些尝试制定的条件进行多色Ei测量采用交错的轨迹进行了讨论。这些结果可应用于现有的光谱仪，并可作为未来斩波光谱仪的设计准则。同时还介绍了AMATERAS公司为提高测量效率而采取的相关措施。
The polychromatic incident energy measurements using chopper spectrometers at pulsed sources enables us to measure dynamics with different energy resolutions, i.e., different time-windows with a single-measurement. By increasing the possible time-window for a single-measurement, the efficiency and usefulness of such measurements is enhanced. This is achieved by allowing the crossing of trajectories of different Eis from different source pulses on the time-of-flight diagram (the interveined trajectory). We will present an actual case of the interveined trajectory on AMATERAS, a cold-neutron chopper spectrometer installed at J-PARC, together with our experience. Some of our attempts to formulate the conditions for performing polychromatic Ei measurements employing interveined trajectories are discussed. These which can be applied to existing spectrometers, and considered as design criteria for future chopper spectrometers. Further related plan of AMATERAS to improve measuring efficiency is also mentioned.
中子飞行时间谱仪波矢能量传递协方差矩阵的计算方法
DOI：
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发表时间：
2014
期刊：
影响因子：
--
作者：
N. Violini;J. Voigt;S. Pasini;T. Brückel
通讯作者：
T. Brückel