Applications of He-3 neutron spin filters at the NCNR

Chen WC; Erwin R; McIver JW; Watson S; Fu CB; Gentile TR; Borchers JA; Lynn JW; Jones GL

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Applications of He-3 neutron spin filters at the NCNR

机译：He-3中子自旋滤波器在NCNR中的应用

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At the NIST Center for Neutron Research (NCNR), we have applied He-3 neutron spin filters (NSFs) to the instruments where He-3 NSFs are advantageous, such as thermal triple-axis spectrometry, small-angle neutron scattering, and diffuse reflectometry. We present the status of our development and application of this method, including polarized gas production by spin-exchange optical pumping, magnetostatic cavities for storage of the polarized gas on the beam line, and nuclear magnetic resonance (NMR)-based, on-line monitoring and reversal of the He-3 polarization. We present the status of developing user-friendly interfaces incorporated into the instrument software to handle these He-3 neutron spin filters while taking data and performing data analysis. Finally we discuss the status of development of a polarization capability on the multi-axis crystal spectrometer, which requires polarization analysis over a 220 degrees angular range.

机译：在NIST中子研究中心（NCNR），我们将He-3中子自旋滤波器（NSF）应用于He-3 NSF较为有利的仪器，例如热三轴光谱仪，小角度中子散射和扩散反射法。我们介绍了该方法的开发和应用状况，包括通过自旋交换光泵产生极化气体，用于在光束线上存储极化气体的静磁腔以及基于核磁共振（NMR）的在线方法监测和逆转He-3极化。我们介绍了开发集成到仪器软件中的用户友好界面的状态，以便在获取数据和执行数据分析时处理这些He-3中子自旋滤波器。最后，我们讨论了多轴晶体光谱仪上极化能力的发展状况，该技术要求在220度角范围内进行极化分析。

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《Physica, B. Condensed Matter》 |2009年第17期|共4页
作者
Chen WC; Erwin R; McIver JW; Watson S; Fu CB; Gentile TR; Borchers JA; Lynn JW; Jones GL;
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正文语种 eng
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关键词
He-3 NSF; TAS; SANS; Wide-angle; Polarization analysis; He-3 flipping;

机译：He-3 NSF;TAS;SANS;广角;极化分析;He-3翻转;

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专利

1. Applications of He-3 neutron spin filters at the NCNR [J] . Chen WC, Erwin R, McIver JW, Physica, B. Condensed Matter . 2009,第17期

机译：He-3中子自旋滤波器在NCNR中的应用
2. In situ SEOP polarised He-3 neutron spin filter for incident beam polarisation and polarisation analysis on neutron scattering instruments [J] . Boag S, Babcock E, Andersen KH, Physica, B. Condensed Matter . 2009,第17期

机译：原位SEOP极化He-3中子自旋滤光片用于入射束极化和中子散射仪器的极化分析
3. He-3 spin filter for neutrons [J] . Batz M, Baessler S, Heil W, Journal of Research of the National Institute of Standards and Technology . 2005,第3期

机译：He-3中子自旋过滤器
4. Development of portable polarized ~3He neutron spin filter and its application to magnetic field imaging at J-PARC [C] . K Sakai, T Oku, H Hayashida, Workshop on Neutron Optics and Detectors . 2014

机译：便携式偏振〜3HE中子旋转过滤器的开发及其在J-PARC磁场成像的应用
5. Investigations in the development and application of optically pumped polarized (3)He neutron spin filters. [D] . Rich, Dennis Robert. 1999

机译：光泵浦极化（3）He中子自旋滤波器的开发和应用研究。
6. 3He Spin Filter for Neutrons [O] . M. Batz, S. Baeßler, W. Heil, 2005

机译：中子用3He自旋滤波器
7. Polarized He-3 spin filters for slow neutron physics [O] . T.R. Gentile, W.C. Chen, G.L. Jones, 2005

机译：用于慢性中子物理学的偏振He-3旋转过滤器

Applications of He-3 neutron spin filters at the NCNR

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