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Title: Production, formation, and transport of high-brightness atomic hydrogen beam studies for the relativistic heavy ion collider polarized source upgrade

The RHIC polarized H{sup −} ion source had been successfully upgraded to higher intensity and polarization by using a very high brightness fast atomic beam source developed at BINP, Novosibirsk. In this source the proton beam is extracted by a four-grid multi-aperture ion optical system and neutralized in the H{sub 2} gas cell downstream from the grids. The proton beam is extracted from plasma emitter with a low transverse ion temperature of ∼0.2 eV which is formed by plasma jet expansion from the arc plasma generator. The multi-hole grids are spherically shaped to produce “geometrical” beam focusing. Proton beam formation and transport of atomic beam were experimentally studied at test bench.
Authors:
;  [1] ; ; ;  [2] ; ;  [1] ;  [3]
  1. Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation)
  2. Brookhaven National Laboratory, Upton, New York 11973 (United States)
  3. (Russian Federation)
Publication Date:
OSTI Identifier:
22253640
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ATOMIC BEAM SOURCES; ATOMIC BEAMS; BRIGHTNESS; BROOKHAVEN RHIC; ION SOURCES; ION TEMPERATURE; OPTICAL SYSTEMS; PLASMA JETS; POLARIZATION; PROTON BEAMS