Production of polarized hydrogen with an improved atomic beam source

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Bulletin of the American Physical Society

OSTI ID:243739

Roberts, A D; Elmer, P; Wise, T ^[1]

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1. Univ. of Wisconsin, Madison, WI (United States); and others

A source of atomic beams of polarized H and D will be described. High-field tapered permanent magnet sixpoles (1.5 T) are used for Stern-Gerlach separation of the atoms. The beam is cooled with a liquid nitrogen cooled dissociator nozzle. Studies of gas scattering and dissociator output were combined with calculations of atomic trajectories through sixpole magnets to find the optimum source design. The total hydrogen beam intensity is 8.6x10{sup 16} atoms/s in two hyperfine spin states. The measured beam profile and intensity agree with calculations. The beam intensity measured through a 1 cm diameter, 13 cm magnet is (6.7 {+-}0.1)x10{sup 16} atoms/s. A hydrogen beam in a single spin state has also been made with an intensity of (3.6{+-}0.1)x10{sup 16} atoms/s and a nuclear polarization of 0.86{+-}0.05.

• OSTI ID: 243739
• Report Number(s): CONF-9304297--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
ATOMIC BEAMS
BEAM PRODUCTION
HYDROGEN
POLARIZED BEAMS
STERN-GERLACH EXPERIMENT
TARGETS