MEOP based 3He polarization and injection system for experiments below 1 K

T. Rao; L. Barrón-Palos; I. Berkutov; C. B. Crawford; R. Golub; P. Huffman; M. Konieczny; E. Korobkina; Austin Reid; B. Salazar-Ángeles; C. Smith; R. Tat; T. Zanatta-Martínez

doi:10.1088/1748-0221/20/01/P01007

MEOP based ³He polarization and injection system for experiments below 1 K

T. Rao
, L. Barrón-Palos
, I. Berkutov
, C. B. Crawford
, R. Golub
, P. Huffman
, M. Konieczny
, E. Korobkina
, Austin Reid
, B. Salazar-Ángeles
, C. Smith
, R. Tat
, T. Zanatta-Martínez

Producción científica: Article › revisión exhaustiva

Resumen

Metastability exchange optical pumping (MEOP) is a widely used technique for producing polarized ³He. In connection with an experiment to search for the electric dipole moment of the neutron (nEDM) we have built a MEOP based ³He polarization and injection system to prepare 80 % polarized ³He at room temperature which will be injected into a ∼ 400 mK measurement cell filled with superfluid ⁴He. We describe the polarization and injection system, which is designed to allow for final concentrations of 10^-8-10^-10 of 80% polarized ³He in the superfluid filled measurement cell. Only ≈ 0.72%

Idioma original	English
Número de artículo	P01007
Publicación	Journal of Instrumentation
Volumen	20
N.º	1
DOI	https://doi.org/10.1088/1748-0221/20/01/P01007
Estado	Published - ene 1 2025

Nota bibliográfica

Publisher Copyright:
© 2025 The Author(s)

Financiación

This work was supported in part by the US Department of Energy under grant number DE-FG02- 97ER41042 and through subcontract number 4000196635 administered through Oak Ridge National Laboratory.

Financiadores	Número del financiador
Oak Ridge National Laboratory
U.S. Department of Energy EPSCoR	DE-FG02- 97ER41042, 4000196635

ASJC Scopus subject areas

Mathematical Physics
Instrumentation

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10.1088/1748-0221/20/01/P01007

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Rao, T., Barrón-Palos, L., Berkutov, I., Crawford, C. B., Golub, R., Huffman, P., Konieczny, M., Korobkina, E., Reid, A., Salazar-Ángeles, B., Smith, C., Tat, R., & Zanatta-Martínez, T. (2025). MEOP based ³He polarization and injection system for experiments below 1 K. Journal of Instrumentation, 20(1), Artículo P01007. https://doi.org/10.1088/1748-0221/20/01/P01007

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title = "MEOP based 3He polarization and injection system for experiments below 1 K",

abstract = "Metastability exchange optical pumping (MEOP) is a widely used technique for producing polarized 3He. In connection with an experiment to search for the electric dipole moment of the neutron (nEDM) we have built a MEOP based 3He polarization and injection system to prepare 80 \% polarized 3He at room temperature which will be injected into a ∼ 400 mK measurement cell filled with superfluid 4He. We describe the polarization and injection system, which is designed to allow for final concentrations of 10-8-10-10 of 80\% polarized 3He in the superfluid filled measurement cell. Only ≈ 0.72\%",

keywords = "Gas systems and purification, Large detector systems for particle and astroparticle physics",

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AU - Rao, T.

AU - Barrón-Palos, L.

AU - Berkutov, I.

AU - Crawford, C. B.

AU - Golub, R.

AU - Huffman, P.

AU - Konieczny, M.

AU - Korobkina, E.

AU - Reid, Austin

AU - Salazar-Ángeles, B.

AU - Smith, C.

AU - Tat, R.

AU - Zanatta-Martínez, T.

PY - 2025/1/1

Y1 - 2025/1/1

N2 - Metastability exchange optical pumping (MEOP) is a widely used technique for producing polarized 3He. In connection with an experiment to search for the electric dipole moment of the neutron (nEDM) we have built a MEOP based 3He polarization and injection system to prepare 80 % polarized 3He at room temperature which will be injected into a ∼ 400 mK measurement cell filled with superfluid 4He. We describe the polarization and injection system, which is designed to allow for final concentrations of 10-8-10-10 of 80% polarized 3He in the superfluid filled measurement cell. Only ≈ 0.72%

AB - Metastability exchange optical pumping (MEOP) is a widely used technique for producing polarized 3He. In connection with an experiment to search for the electric dipole moment of the neutron (nEDM) we have built a MEOP based 3He polarization and injection system to prepare 80 % polarized 3He at room temperature which will be injected into a ∼ 400 mK measurement cell filled with superfluid 4He. We describe the polarization and injection system, which is designed to allow for final concentrations of 10-8-10-10 of 80% polarized 3He in the superfluid filled measurement cell. Only ≈ 0.72%

KW - Gas systems and purification

KW - Large detector systems for particle and astroparticle physics

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