An internal polarized {sup 3}He target for electron storage rings

Journal Article · Sat Jul 15 04:00:00 EDT 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.48602· OSTI ID:165898

Kramer, L H; DeSchepper, D; Milner, R G; Pate, S F; Shin, T ^[1]

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1. MIT-Bates Linear Accelerator Center and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

We describe an internal polarized {sup 3}He target under construction which will be used in several electron storage ring experiments. The target is based on the technique of metastability exchange laser optical pumping, where the polarized atoms flow into a cryogenically-cooled storage cell. This novel technique allows for high precision measurements where the beam interacts with the pure atomic species. Both the HERMES experiment at DESY and the BLAST detector at the MIT Bates Laboratory will use the polarized {sup 3}He target in their measurements. Details of the target system, including the provisions needed to incorporate the target into the electron storage ring, are presented.

• Sponsoring Organization: USDOE
• OSTI ID: 165898
• Report Number(s): CONF-9409103--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 339; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
DENSITY
DESIGN
HELIUM 3 TARGET
OPTICAL PUMPING
PERFORMANCE
POLARIZED TARGETS