Conceptual design of a polarized 3He neutron spin filter for polarized neutron spectrometer POLANO at J-PARC

International Conference on Polarised Neutrons for Condensed Matter Investigations 2014

Ino, T.^1,2 ; Ohoyama, K.^3,4 ; Yokoo, T.^1,2 ; Itoh, S.^1,2 ; Ohkawara, M.^4 ; Kira, H.^5 ; Hayashida, H.^5 ; Sakai, K.^2,6 ; Hiroi, K.^2,6 ; Oku, T.^2,6 ; Kakurai, K.^6 ; Chang, L.J.^7

IMSS, KEK, Ibaraki, Tsukuba

305-0801, Japan^1

J-PARC Center, Ibaraki-Tokai

319-1195, Japan^2

WPI-AIMR, Tohoku University, Miyagi, Sendai

980-8577, Japan^3

IMR, Tohoku University, Miyagi, Sendai

980-8577, Japan^4

CROSS, Ibaraki-Tokai

319-1106, Japan^5

JAEA, Ibaraki-Tokai

319-1195, Japan^6

Physics Department, National Cheng Kung University, Tainan

70101, Taiwan^7

关键词: 3He neutron spin filters;    Experimental facilities;    Japan proton accelerator research complexes;    Limited space;    Polarization analysis;    Polarized neutrons;    Spin exchange optical pumping;    Strongly correlated electron system;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/711/1/012011/pdf
DOI  :  10.1088/1742-6596/711/1/012011

来源: IOP

【 摘 要 】

A3He neutron spin filter (NSF) has been designed for a new polarized neutron chopper spectrometer called the Polarization Analysis Neutron Spectrometer with Correlation Method (POLANO) at the Materials and Life Science Experimental Facility of the Japan Proton Accelerator Research Complex. It is designed to fit in a limited space on the spectrometer as an initial neutron beam polarizer and is polarized in situ by spin exchange optical pumping. This will be the first generation3He NSF on POLANO, and a polarized neutron beam up to 100 meV with a diameter of 50 mm will be available for research on magnetism, hydrogen materials, and strongly correlated electron systems.