The Brookhaven National Laboratory electron beam ion source for RHIC

Journal Article · Mon Feb 22 00:00:00 EST 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3292937· OSTI ID:1040356

Alessi, J G; Barton, D; Beebe, E; Bellavia, S; Gould, O; Kponou, A; Lambiase, R; Lockey, R; McNerney, A; Mapes, M; Marneris, I; Okamura, M; Phillips, D; Pikin, A I; Raparia, D; Ritter, J; Snydstrup, L; Theisen, C; Wilinski, M

As part of a new heavy ion preinjector that will supply beams for the Relativistic Heavy Ion Collider and the National Aeronautics and Space Administration Space Radiation Laboratory, construction of a new electron beam ion source (EBIS) is now being completed. This source, based on the successful prototype Brookhaven National Laboratory Test EBIS, is designed to produce milliampere level currents of all ion species, with q/m = (1/6)-(1/2). Among the major components of this source are a 5 T, 2-m-long, 204 mm diameter warm bore superconducting solenoid, an electron gun designed to operate at a nominal current of 10 A, and an electron collector designed to dissipate {approx} 300 kW of peak power. Careful attention has been paid to the design of the vacuum system, since a pressure of 10{sup -10} Torr is required in the trap region. The source includes several differential pumping stages, the trap can be baked to 400 C, and there are non-evaporable getter strips in the trap region. Power supplies include a 15 A, 15 kV electron collector power supply, and fast switchable power supplies for most of the 16 electrodes used for varying the trap potential distribution for ion injection, confinement, and extraction. The EBIS source and all EBIS power supplies sit on an isolated platform, which is pulsed up to a maximum of 100 kV during ion extraction. The EBIS is now fully assembled, and operation will be beginning following final vacuum and power supply tests. Details of the EBIS components are presented.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
• Sponsoring Organization: USDOE SC OFFICE OF SCIENCE (SC)
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 1040356
• Report Number(s): BNL-91149-2010-JA; RSINAK; R&D Project: KBCH139; KB0202011; TRN: US1202407
• Journal Information: Review of Scientific Instruments, Vol. 81, Issue 2; Conference: International Conference on Ion Sources - ICIS '09; Gaitlinburg, TN; 20090921 through 20090925; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CONFINEMENT
ELECTRODES
ELECTRON BEAM ION SOURCES
ELECTRON BEAMS
ELECTRON GUNS
ELECTRON SOURCES
ELECTRONS
GETTERS
HEAVY IONS
ION SOURCES
LINEAR ACCELERATORS
PARTICLE BEAMS
PEAK LOAD
POWER SUPPLIES
PUMPING
RADIATIONS
SOLENOIDS
SUPERCONDUCTING MAGNETS
VACUUM SYSTEMS
BROOKHAVEN RHIC
relativistic heavy ion collider