A new 14 GHz electron-cyclotron-resonance ion source for the heavy ion accelerator facility ATLAS
Journal Article
·
· Review of Scientific Instruments
- Argonne National Laboratory, Physics Division, Illinois 60439 (United States)
- Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- National Superconducting Cyclotron Laboratory, MSU, East Lansing, Michigan 48824 (United States)
A 14 GHz electron-cyclotron-resonance (ECR) ion source has been designed and built at Argonne National Laboratory. The source is a modification of the AECR [D. J. Clark, C. M. Lyneis, and Z. Q. Xie, 14th Particle Accelerator Conference (PAC), IEEE Conference 91 CH3038-7, 1991 (unpublished), p. 2796 and C. M. Lyneis, Z. Q. Zie, D. J. Clark, R. S. Lam, and S. A. Lundgren, 10th International Workshop on ECR Ion Sources, Oak Ridge, ORNL CONF-9011136, 1990 (unpublished), p. 47.] at Berkeley and incorporates the latest results from electron-cyclotron-resonance (ECR) developments to produce intense beams of highly charged ions, including an improved magnetic confinement of the plasma electrons with an axial mirror ratio of 3.5. The aluminum plasma chamber and extraction electrode as well as a biased disk on axis at the microwave injection side donate additional electrons to the plasma, making use of the large secondary electron yield from aluminum oxide. The source is capable of ECR plasma heating using two different frequencies simultaneously to increase the electron energy gain for the production of high charge states. The main design goal is to produce several e{mu}A of at least {sup 238}U{sup 35+} in order to accelerate the beam to coulomb-barrier energies without further stripping. First charge state distributions for gaseous elements have been measured and 210e{mu}A{sup 16}O{sup 7+} has been achieved. A normalized, 90{percent} emittance from 0.1 to 0.2 {pi} mm mrad for krypton and oxygen beam has been found.
- OSTI ID:
- 591868
- Report Number(s):
- CONF-980145--
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 2 Vol. 69; ISSN 0034-6748; ISSN RSINAK
- Country of Publication:
- United States
- Language:
- English
Similar Records
A new 14 GHz Electron-Cyclotron-Resonance Ion Source (ECRIS) for the heavy ion accelerator facility ATLAS
A new 14 GHz Electron-Cyclotron-Resonance Ion Source (ECRIS) for the Heavy Ion Accelerator Facility ATLAS
Beam acceleration in the LBL 88-inch cyclotron with injection from the AECR source
Conference
·
Fri Oct 31 23:00:00 EST 1997
·
OSTI ID:552769
A new 14 GHz Electron-Cyclotron-Resonance Ion Source (ECRIS) for the Heavy Ion Accelerator Facility ATLAS
Conference
·
Mon Mar 31 23:00:00 EST 1997
·
OSTI ID:465705
Beam acceleration in the LBL 88-inch cyclotron with injection from the AECR source
Conference
·
Wed May 01 00:00:00 EDT 1991
·
OSTI ID:5773502