Characterization of the new Ultracold Neutron beamline at the LANL UCN facility

Characterization of the new Ultracold Neutron beamline at the LANL UCN facility
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DOI：
10.1016/j.nima.2023.168105
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发表时间：
2022-08
期刊：
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子：
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通讯作者：
D. K. Wong;M. Hassan;J. F. Burdine;T. Chupp;S. Clayton;C. Cude-Woods;S. Currie;T. Ito;C-Y. Liu;M. Makela;C. Morris;C. O'Shaughnessy;A. Reid;N. Sachdeva;W. Uhrich
D. K. Wong;M. Hassan;J. F. Burdine;T. Chupp;S. Clayton;C. Cude-Woods;S. Currie;T. Ito;C-Y. Liu;M. Makela;C. Morris;C. O'Shaughnessy;A. Reid;N. Sachdeva;W. Uhrich
中科院分区：
其他
文献类型：
--
作者：
D. K. Wong;M. Hassan;J. F. Burdine;T. Chupp;S. Clayton;C. Cude-Woods;S. Currie;T. Ito;C-Y. Liu;M. Makela;C. Morris;C. O'Shaughnessy;A. Reid;N. Sachdeva;W. Uhrich

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目前正在洛斯阿拉莫斯国家实验室（LANL）开发的中子电偶极矩（nEDM）实验将使用超冷中子（UCN）和拉姆齐的分离振荡场方法来寻找nEDM。在本文中，我们介绍了在LANL UCN源的新光束线调试期间进行的UCN存储和UCN输运的测量，并证明了足够数量的存储极化UCN在5个日历年的运行中实现δ dn = 2× 1 0− 27 e cm的统计不确定度。我们还提出了一个分析模型描述的数据，提供了一个简单的参数化的输入UCN能谱上的新的光束线。
The neutron electric dipole moment (nEDM) experiment that is currently being developed at Los Alamos National Laboratory (LANL) will use ultracold neutrons (UCN) and Ramsey’s method of separated oscillatory fields to search for a nEDM. In this paper, we present measurements of UCN storage and UCN transport performed during the commissioning of a new beamline at the LANL UCN source and demonstrate a sufficient number of stored polarized UCN to achieve a statistical uncertainty of δ d n= 2× 1 0− 27 e cm in 5 calendar years of running. We also present an analytical model describing data that provides a simple parameterization of the input UCN energy spectrum on the new beamline.