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Title: Iron beam acceleration using direct plasma injection scheme

A new set of vanes of radio frequency quadrupole (RFQ) accelerator was commissioned using highly charged iron beam. To supply high intensity heavy ion beams to the RFQ, direct plasma injection scheme (DPIS) with a confinement solenoid was adopted. One of the difficulties to utilize the combination of DPIS and a solenoid field is a complexity of electro magnetic field at the beam extraction region, since biasing high static electric field for ion extraction, RFQ focusing field, and the solenoid magnetic field fill the same space simultaneously. To mitigate the complexity, a newly designed magnetic field clamps were used. The intense iron beam was observed with bunched structure and the total accelerated current reached 2.5 nC.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [5]
  1. Brookhaven National Laboratory, Upton, New York 11973 (United States)
  2. (United States)
  3. Waseda University, Shinjuku, Tokyo 169-8555 (Japan)
  4. Kyoto University, Uji, Kyoto 611-0011 (Japan)
  5. (Japan)
Publication Date:
OSTI Identifier:
22254133
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELECTRIC FIELDS; HEAVY IONS; ION BEAMS; IRON; MAGNETIC FIELDS; PLASMA; PLASMA FOCUS; PLASMA PRODUCTION; QUADRUPOLE LINACS; RADIOWAVE RADIATION; SOLENOIDS