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| Hauptverfasser: | , , , , , , , , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| Schlagworte: | |
| Online-Zugang: | https://arxiv.org/abs/2411.07197 |
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| _version_ | 1866915014094356480 |
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| author | Rao, T. Barron-Palos, L. Berkutov, I. Crawford, C. Golub, R. Huffman, P. Konieczny, M. Korobkina, E. Reid, Austin Salazar-Angeles, B. Smith, C. Tat, R. |
| author_facet | Rao, T. Barron-Palos, L. Berkutov, I. Crawford, C. Golub, R. Huffman, P. Konieczny, M. Korobkina, E. Reid, Austin Salazar-Angeles, B. Smith, C. Tat, R. |
| contents | 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 $\approx0.72\%$ polarization loss due to gradients is expected during injection |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_07197 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | MEOP based 3He polarization and injection system for experiments below 1 K Rao, T. Barron-Palos, L. Berkutov, I. Crawford, C. Golub, R. Huffman, P. Konieczny, M. Korobkina, E. Reid, Austin Salazar-Angeles, B. Smith, C. Tat, R. Instrumentation and Detectors 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 $\approx0.72\%$ polarization loss due to gradients is expected during injection |
| title | MEOP based 3He polarization and injection system for experiments below 1 K |
| topic | Instrumentation and Detectors |
| url | https://arxiv.org/abs/2411.07197 |