STI Publications - View Publication #18428
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Publication Information
| Title | Optically Pumped Polarized 3 3 He + + ++ Ion Source Development for RHIC/EIC | ||||
| Abstract | The proposed polarized 3He++ acceleration in RHIC and the future Electron-Ion Collider will require about 2×1011 ions in the source pulse. A new technique had been proposed for production of high intensity polarized 3He++ ion beams. It is based on ionization and accumulation of the 3He gas (polarized by metastability-exchange optical pumping and in the 5 T high magnetic field) in the existing Electron Beam Ion Source (EBIS). A novel 3He cryogenic purification and storage technique was developed to provide the required gas purity. An original gas refill and polarized 3He gas injection to the EBIS long drift tubes, (which serves as the storage cell) were developed to ensure polarization preservation. An infrared laser system for optical pumping and polarization measurements in the high 3–5 T field has been developed. Neutral atom 3He polarizations of 80–85% (and sufficiently long ~30 min relaxation time) have been obtained in the “open” cell configuration with refilling valve tube | ||||
| Author(s) | A. Zelenski, G. Atoian, E. Beebe, S. Ikeda, T. Kanesue, S. Kondrashev, James Maxwell, R. Milner, Matthew Musgrave, M. Okamura, A. Poblaguev, D. Raparia, J. Ritter, A. Sukhanov, S. Trabocchi | ||||
| Publication Date | June 2023 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Brookhaven National Laboratory, Upton, NY | ||||
| Affiliation | Exp Nuclear Physics / Technical Support Groups / Cryo/Polarized Targets | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Nuclear Instruments & Methods in Physics Research, Section A |
| Refereed | No |
| Volume | |
| Issue | |
| Page(s) | 168494 |
Attachments/Datasets/DOI Link
| Document(s) |
2303.10409.pdf
(STI Document)
1-s2.0-S0168900223004849-main.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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