The monochromatic imaging mode of a RITA-type neutron spectrometer

C.R.H. Bahl; P. Andersen; S.N. Klausen; K. Lefmann

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The monochromatic imaging mode of a RITA-type neutron spectrometer

机译：RITA型中子光谱仪的单色成像模式

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摘要

The imaging monochromatic mode of a neutron spectrometer with a multi-bladed RITA analyser system is so far unexplored. We present analytical calculations that define the mode. It is shown that the mode can be realised for PG (002) analyser crystals, from incident energies of about 3.2 meV and up, allowing the important cases of 3.7, 5.0 and 13.7 meV. Due to beam divergence, the neutron rays from neighbouring analyser blades are found to overlap slightly. Hence, the optimal use of the monochromatic imaging mode would be found by employing an adjustable radial colli-mator to limit the spread of the ray from each analyser blade.

机译：迄今为止，还没有探索具有多叶片RITA分析仪系统的中子光谱仪的成像单色模式。我们提出定义模式的分析计算。结果表明，PG（002）分析仪晶体可以实现该模式，其入射能量约为3.2 meV以上，允许在3.7、5.0和13.7 meV的重要情况下使用。由于束发散，发现相邻分析仪叶片的中子射线略有重叠。因此，通过使用可调节的径向准直仪来限制来自每个分析仪叶片的射线散布，可以找到单色成像模式的最佳用途。

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来源
《Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms》 |2004年第4期|p.667-681|共15页
作者
C.R.H. Bahl; P. Andersen; S.N. Klausen; K. Lefmann;
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作者单位

Department of Materials Research, Riso National Laboratory, Building 227, Frederi-ksborgvej 399, DK-4000 Roskilde, Denmark;

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原文格式 PDF
正文语种 eng
中图分类原子核物理学、高能物理学;原子能技术;
关键词
neutron spectrometers; multiple analyser;

机译：中子光谱仪;多分析仪;

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专利

1. Inelastic neutron scattering experiments with the monochromatic imaging mode of the RITA-II spectrometer [J] . Bahl CRH, Lefmann K, Abrahamsen AB, Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms . 2006,第2期

机译：使用RITA-II光谱仪的单色成像模式进行非弹性中子散射实验
2. Experimental test of a newly developed single-moderator, multi-detector, directional neutron spectrometer in reference monochromatic fields from 144 keV to 16.5 MeV [J] . R. Bedogni, J.M. Gomez-Ros, A. Pola, Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment . 2015,第may11期

机译：新型开发的单减速器，多探测器，定向中子能谱仪在144 keV至16.5 MeV的参考单色场中的实验测试
3. Testing a newly developed single-sphere neutron spectrometer in reference monochromatic fields from 147 keV to 14.8 MeV [J] . R.Bedogni, J.M.Gomez-Ros, A.Pola, Nuclear Instruments & Methods in Physics Research . 2013,第juna21期

机译：在147 keV至14.8 MeV的参考单色场中测试新开发的单球中子光谱仪
4. SONTRAC: an Imaging Spectrometer for Solar Neutrons [C] . James M. Ryan, Laurent Desorgher, Erwin O. Flueckiger, SPIE Conference on Innovative Telescopes and Instrumentation for Solar Astrophysics . 2003

机译：Sontrac：太阳中子的成像光谱仪
5. Assessment of organ doses from exposure to neutrons using the Monte Carlo technique and an image-based anatomical model. [D] . Bozkurt, Ahmet. 2000

机译：使用蒙特卡洛技术和基于图像的解剖模型评估暴露于中子后的器官剂量。
6. Renal Cyst Pseudoenhancement: Intraindividual Comparison Between Virtual Monochromatic Spectral Images and Conventional Polychromatic 120-kVp Images Obtained During the Same CT Examination and Comparisons Among Images Reconstructed Using Filtered Back Projection Adaptive Statistical Iterative Reconstruction and Model-Based Iterative Reconstruction [O] . Yoshitake Yamada, Minoru Yamada, Koichi Sugisawa, -1

机译：肾囊肿假性增强：在同一CT检查期间获得的虚拟单色光谱图像与常规多色120kVpp图像的个体比较以及使用滤波反投影自适应统计迭代重建和基于模型的迭代重建重建的图像之间的比较
7. The monochromatic imaging mode of a RITA-type neutron spectrometer [O] . Bahl C.R.H., Andersen P., Klausen S.N., 2004

机译：RITa型中子能谱仪的单色成像模式
8. MODIS (Moderate-Resolution Imaging Spectrometer):Moderate-Resolution Imaging Spectrometer. Earth Observing System,Volume 2B. [R] . Thompson, T. W. 1986

机译：mODIs（中分辨率成像光谱仪）：中分辨率成像光谱仪。地球观测系统，第2B卷。

The monochromatic imaging mode of a RITA-type neutron spectrometer

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