Development of an EBIS for a RHIC preinjector

Conference · Sun Oct 01 04:00:00 EDT 1995

OSTI ID:109676

Beebe, E; Alessi, J; Hershcovitch, A; Kponou, A; Prelec, K ^[1]; Schmieder, R W ^[2]

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1. Brookhaven National Lab., Upton, NY (United States)
2. Sandia National Labs., Albuquerque, NM (United States)

At Brookhaven, an Electron Beam Ion Source (EBIS) is operational as a test bed for development of a high current EBIS for RIEC. Previously, the goal of most EBIS research has been to produce bare or nearly bare nuclei. At BNL, the EBIS is required to produce only medium charge states of heavy ions e.g., Au{sup 35+}, since there is further stripping at higher energies. The BNL effort is directed at reaching intensities of interest to FJMC, approximately 3 {times} 10{sup 9} particles/pulse, which will require an EBIS electron beam on the order of 10A. Initial tests using a 1 mm LaB{sub 6} cathode have produced electron beam currents up to the design value of 110mA. A 2mm LaB{sub 6} cathode has been installed and in a first run has produced currents up to 350mA. This source has so far produced charge states up to Ar{sup 16+} using neutral gas injection, and up to Tl{sup 50+} using external ion injection. Results of these studies and ion injection trials are presented.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 109676
• Report Number(s): BNL--61797; CONF-9509125--3; KA--02-01; ON: DE96000433
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BROOKHAVEN RHIC
ELECTRON BEAM ION SOURCES
TEST FACILITIES