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Title: ATOMIC BEAM STUDIES IN THE RHIC H-JET POLARIMETER.

The results of atomic beam production studies are presented. Improved cooling of the atoms before jet formation in the dissociator cold nozzle apparently reduces the atomic beam velocity spread and improves beam focusing conditions. A carefully designed sextupole separating (and focusing) magnet system takes advantage of the high brightness source. As a result a record beam intensity of a 12.4 {center_dot} 10{sup 16} atoms/s was obtained within 10 mm acceptance at the collision point. The results of the polarization dilution factor measurements (by the hydrogen molecules at the collision point) are also presented.
Authors:
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Publication Date:
OSTI Identifier:
15011165
Report Number(s):
BNL--73616-2005-CP
R&D Project: 18086; ISBN KB-02-02-01-2; TRN: US200504%%324
DOE Contract Number:
AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 28 Jan 2005
Research Org:
BROOKHAVEN NATIONAL LABORATORY (US)
Sponsoring Org:
DOE/SC (US)
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; ATOMIC BEAMS; ATOMS; BRIGHTNESS; DILUTION; FOCUSING; HYDROGEN; MAGNETS; NOZZLES; POLARIZATION; PRODUCTION; VELOCITY