Status of the Brookhaven National Laboratory high current electron beam ion source test stand
- Brookhaven National Laboratory, Bldg. 930, Upton, New York 11973 (United States)
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, (Russian Federation)
As part of a new, compact heavy ion injector for the AGS/RHIC complex at Brookhaven National Laboratory we are developing an electron beam ion source (EBIS) that would satisfy present and future requirements. Such a source should be capable of producing intensities of, e.g., Au{sup 35+} ions of about 3x10{sup 9} particles/pulse or U{sup 45+} of about 2x10{sup 9} particles/pulse. To achieve this, the required e-beam intensity is 10 A, at a pulse length of 100 ms. An EBIS test stand has been constructed, designed for the full electron beam power and having close to 1/2 of the trap length of an EBIS for RHIC. Initial electron beam tests have resulted in a 50 {mu}s, 13 A electron beam. Ion production and extraction has been shown with a 3.1 A, 50 ms electron beam, achieving an ion yield of 19 nC/pulse (neutralization degree of 61%); fast extraction trials have yielded extracted ion pulses of 1 mA peak current and 18 {mu}s at FWHM. Details of the test stand construction, results of the electron beam studies, and properties of the extracted ion pulse are presented. (c) 2000 American Institute of Physics.
- OSTI ID:
- 20215410
- Journal Information:
- Review of Scientific Instruments, Vol. 71, Issue 2; Other Information: PBD: Feb 2000; ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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