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Title: Plasma shape control by pulsed solenoid on laser ion source

A Laser ion source (LIS) provides high current heavy ion beams with a very simple mechanical structure. Plasma is produced by a pulsed laser ablation of a solid state target and ions are extracted by an electric field. It was difficult to manipulate the beam parameters of a LIS, since the plasma condition could only be adjusted by the laser irradiation condition. To enhance flexibility of LIS operation, we employed a pulsed solenoid in the plasma drift section and investigated the effect of the solenoid field on singly charged iron beams. The experimentally obtained current profile was satisfactorily controlled by the pulsed magnetic field. Thus, this approach may also be useful to reduce beam emittance of a LIS.
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [6] ;  [8]
  1. Tokyo Institute of Technology, Tokyo (Japan); RIKEN, Saitama (Japan)
  2. Tokyo Institute of Technology, Kanagawa (Japan); RIKEN, Saitama (Japan)
  3. Cornell Univ., Ithaca, NY (United States)
  4. RIKEN, Saitama (Japan); Waseda Univ., Tokyo (Japan)
  5. RIKEN, Saitama (Japan); Kyoto Univ., Kyoto (Japan)
  6. Brookhaven National Lab. (BNL), Upton, NY (United States)
  7. Tokyo Institute of Technology, Tokyo (Japan)
  8. RIKEN, Saitama (Japan); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0168-9002; R&D Project: KBCH139; 18033; KB0202011
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 795; Journal Issue: C; Journal ID: ISSN 0168-9002
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
43 PARTICLE ACCELERATORS heavy ion source; laser ion source; laser ablation plasma; plasma shape control