MEOP based <sup>3</sup>He polarization and injection system for experiments below 1 K
Abstract Metastability exchange optical pumping (MEOP) is a widely used technique for producing polarized 3 He. In connection with an experiment to search for the electric dipole moment of the neutron (nEDM) we have built a MEOP based 3 He polarization and injection system to prepare 80 % polarized 3 He at room temperature which will be injected into a ∼ 400 mK measurement cell filled with superfluid 4 He. We describe the polarization and injection system, which is designed to allow for final concentrations of 10 -8 –10 -10 of 80% polarized 3 He in the superfluid filled measurement cell. Only ≈ 0.72% polarization loss due to gradients is expected during injection
Authors
- M. Konieczny (ORCID: https://orcid.org/0000-0002-7395-2075)
- P.R. Huffman (ORCID: https://orcid.org/0000-0002-2562-1378)
- T. Rao (ORCID: https://orcid.org/0009-0002-4159-7678)
- Austin Reid (ORCID: https://orcid.org/0000-0003-1741-2223)
- L. Barrón-Palos (ORCID: https://orcid.org/0000-0003-3082-3676)
- C S Smith (ORCID: https://orcid.org/0000-0003-2677-9991)
- Robert Golub (ORCID: https://orcid.org/0000-0001-7881-1207)
- E. Korobkina (ORCID: https://orcid.org/0000-0002-6098-3681)
- I. B. Berkutov
- Christopher Crawford (ORCID: https://orcid.org/0000-0002-1932-4334)
- R. Tat
- T. Zanatta-Martínez
- B. Salazar-Ángeles
Institutions
- North Carolina State University (US)
- University of Kentucky (US)
- Tennessee Technological University (US)
- Ithaca College (US)
- Universidad Nacional Autónoma de México (MX)
Publication Details
- Journal
- Journal of Instrumentation
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1088/1748-0221/20/01/p01007
- Primary Topic
- Atomic and Subatomic Physics Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00