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Magnet structure of the first ARC-ECRIS prototype constructed at JYFL Accelerator Laboratory

ARC-ECRIS[1] is an Electron Cyclotron Resonance Ion Source based on arc-shaped coils unlike the conventional[2] ECRIS which bases on a multipole magnet (usually a hexapole magnet) inside a solenoid magnet. First time the arc-shaped coils were used already in the 1960s in fusion experiments, for example at the Lawrence Livermore National Laboratory (MFTF, Baseball II,[3] ...) and later in Japan (GAMMA10, ...). In 2006 the JYFL ion source group[4] designed, constructed and tested similar plasma trap to produce highly charged heavy ion beams. The first tests were promising and showed that a stable plasma can be confined in an arc-coil magnetic field structure (see references).


  1. ^ P. Suominen, T. Ropponen and H. Koivisto (2007). "First results with the yin-yang type electron cyclotron resonance ion source". Nuclear Instruments and Methods in Physics Research A. 578 (2): 370–378. Bibcode:2007NIMPA.578..370S. doi:10.1016/j.nima.2007.05.324. 
  2. ^ R. Geller (1996). Electron Cyclotron Resonance Ion Sources and ECR Plasmas. Institute of Physics Publishing. ISBN 978-0-7503-0107-7. 
  3. ^ "On the frontier of missile defense technology" (PDF). Newsline. LLNL. 27 (20): 3. 2002. 
  4. ^ "JYFL Ion Source Group". Retrieved 2009-06-02. 

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