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

Journal Article · Sat Feb 15 00:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4857195· OSTI ID:22253640

Stupishin, N. ^[1]; Atoian, G.; Ritter, J.; Zelenski, A. ^[2]; Davydenko, V.; Ivanov, A. ^[1]

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1. Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation)
2. Brookhaven National Laboratory, Upton, New York 11973 (United States)

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.

• OSTI ID: 22253640
• Journal Information: Review of Scientific Instruments, Vol. 85, 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); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ATOMIC BEAM SOURCES
ATOMIC BEAMS
BRIGHTNESS
BROOKHAVEN RHIC
ION SOURCES
ION TEMPERATURE
OPTICAL SYSTEMS
PLASMA JETS
POLARIZATION
PROTON BEAMS