Spin exchange optical pumping based polarized 3He filling station for the Hybrid Spectrometer at the Spallation Neutron Source.
Spin exchange optical pumping based polarized 3He filling station for the Hybrid Spectrometer at the Spallation Neutron Source.
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用于散裂中子源混合光谱仪的基于自旋交换光泵浦的偏振 3He 填充站。
DOI：
10.1063/1.4809942
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
B. Winn
中科院分区：
文献类型：
--
作者：
C. Jiang;X. Tong;D. Brown;H. Culbertson;M. Graves;M. Hagen;B. Kadron;W. T. Lee;J. Robertson;B. Winn
混合谱仪(HYSPEC)是橡树岭国家实验室散裂中子源的一种新的直接几何谱仪。该仪器具有60°水平和15°垂直探测器覆盖的偏振分析能力。为了给这台仪器提供广角偏振分析，我们设计并建立了一种基于自旋交换光泵方法的新型偏振(3)氦充注站。它的设计目的是为HYSPEC提供极化(3)氦气体作为中子极化分析器。此外，该站还可以优化(3)相对于散射中子能量的氦压强。分析器中的去极化(3)氦气体可以被转移回站点进行再极化。我们已经建造了加气站的原型。初步试验论证了加气站的可行性。在这里，我们报告了原型加气站的设计、施工和初步结果。
The Hybrid Spectrometer (HYSPEC) is a new direct geometry spectrometer at the Spallation Neutron Source at the Oak Ridge National Laboratory. This instrument is equipped with polarization analysis capability with 60° horizontal and 15° vertical detector coverages. In order to provide wide angle polarization analysis for this instrument, we have designed and built a novel polarized (3)He filling station based on the spin exchange optical pumping method. It is designed to supply polarized (3)He gas to HYSPEC as a neutron polarization analyzer. In addition, the station can optimize the (3)He pressure with respect to the scattered neutron energies. The depolarized (3)He gas in the analyzer can be transferred back to the station to be repolarized. We have constructed the prototype filling station. Preliminary tests have been carried out demonstrating the feasibility of the filling station. Here, we report on the design, construction, and the preliminary results of the prototype filling station.
日本SEOP中子自旋过滤器的开发与试验
DOI：
--
发表时间：
2011
期刊：
Physica B 406
影响因子：
--
作者：
H.Kira;M.Nakamura;M.Arai;T.Ino;K.Ohoyama;H.Hiraka;K.Yamada
通讯作者：
K.Yamada