用于超冷中子极化分析的薄铁膜研究
仪器与探测器
2022-12-29 v1 核实验
摘要
TUCAN（TRIUMF Ultra-Cold Advanced Neutron）合作组旨在以空前精度搜寻中子电偶极矩（nEDM）。nEDM 测量的关键要素之一是超冷中子（UCN）的极化分析器，其主要组件为磁化薄铁膜。若干薄铁膜被沉积在铝和硅衬底上，并通过振动样品磁强计与冷中子反射仪进行表征。使铁膜饱和所需的磁场在铝衬底上约为 12 kA/m，在硅衬底上为 6.4 kA/m。通过中子反射仪估计硅衬底上铁膜的磁势为 2 T，这足以满足 nEDM 测量中 UCN 极化分析器的性能要求。
引用
@article{arxiv.2207.08441,
title = {Study of Thin Iron Films for Polarization Analysis of Ultracold Neutrons},
author = {Hiroaki Akatsuka and Takashi Higuchi and Sean Hansen-Romu and Kichiji Hatanaka and Tomohiro Hayamizu and Masahiro Hino and Go Ichikawa and Sohei Imajo and Blair Jamieson and Shinsuke Kawasaki and Masaaki Kitaguchi and Ryohei Matsumiya and Kenji Mishima},
journal= {arXiv preprint arXiv:2207.08441},
year = {2022}
}
备注
Proceedings of the 24th International Spin Symposium (SPIN 2021), 18-22 October 2021, Matsue, Japan