Development of a compact on-beam SEOP neutron spin filter

Takashi Ino; Mitsutaka Nakamura; Takayuki Oku; Takenao Shinohara; Jun ichi Suzuki; Kenji Ohoyama; Haruhiro Hiraka

doi:10.1016/j.physb.2009.06.038

Development of a compact on-beam SEOP neutron spin filter

Takashi Ino, Mitsutaka Nakamura, Takayuki Oku, Takenao Shinohara, Jun ichi Suzuki, Kenji Ohoyama, Haruhiro Hiraka

金属材料研究所

研究成果: Article › 査読

19 被引用数 (Scopus)

抄録

We have designed and demonstrated a prototype on-beam spin-exchange optical pumping (SEOP) ³He neutron spin filter (NSF). It is designed as the incident neutron polarizer for spallation neutron sources, where the installation space is limited due to thick radiation shielding. The size of the NSF is roughly 50 cm×50 cm×25 cm including the diode-laser optics with a frequency narrowing external cavity, and a cylindrical ³He cell as large as a diameter of 5 cm and a length of 10 cm can fit. A neutron beam test was performed at the NOP beamline of JRR-3 to see the performance of the NSF.

本文言語	English
ページ（範囲）	2667-2669
ページ数	3
ジャーナル	Physica B: Condensed Matter
巻	404
号	17
DOI	https://doi.org/10.1016/j.physb.2009.06.038
出版ステータス	Published - 2009 9月 1

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
電子工学および電気工学

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10.1016/j.physb.2009.06.038

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title = "Development of a compact on-beam SEOP neutron spin filter",

abstract = "We have designed and demonstrated a prototype on-beam spin-exchange optical pumping (SEOP) 3He neutron spin filter (NSF). It is designed as the incident neutron polarizer for spallation neutron sources, where the installation space is limited due to thick radiation shielding. The size of the NSF is roughly 50 cm×50 cm×25 cm including the diode-laser optics with a frequency narrowing external cavity, and a cylindrical 3He cell as large as a diameter of 5 cm and a length of 10 cm can fit. A neutron beam test was performed at the NOP beamline of JRR-3 to see the performance of the NSF.",

keywords = "He polarization, Neutron spin filter, Polarized neutron, Spallation neutron source",

author = "Takashi Ino and Mitsutaka Nakamura and Takayuki Oku and Takenao Shinohara and Suzuki, {Jun ichi} and Kenji Ohoyama and Haruhiro Hiraka",

note = "Funding Information: This work was supported by JSPS KAKENHI (19540351). The neutron beam test at the NOP beamline of JRR-3 was performed under COMMON USE PROGRAM of JAEA. ",

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AU - Ino, Takashi

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AU - Oku, Takayuki

AU - Shinohara, Takenao

AU - Suzuki, Jun ichi

AU - Ohoyama, Kenji

AU - Hiraka, Haruhiro

N1 - Funding Information: This work was supported by JSPS KAKENHI (19540351). The neutron beam test at the NOP beamline of JRR-3 was performed under COMMON USE PROGRAM of JAEA.

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N2 - We have designed and demonstrated a prototype on-beam spin-exchange optical pumping (SEOP) 3He neutron spin filter (NSF). It is designed as the incident neutron polarizer for spallation neutron sources, where the installation space is limited due to thick radiation shielding. The size of the NSF is roughly 50 cm×50 cm×25 cm including the diode-laser optics with a frequency narrowing external cavity, and a cylindrical 3He cell as large as a diameter of 5 cm and a length of 10 cm can fit. A neutron beam test was performed at the NOP beamline of JRR-3 to see the performance of the NSF.

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KW - He polarization

KW - Neutron spin filter

KW - Polarized neutron

KW - Spallation neutron source

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Development of a compact on-beam SEOP neutron spin filter

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