Particle simulation for direct plasma injection in a radio frequency quadrupole matching section

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3318208· OSTI ID:22053911

Tamura, J ^[1]; Hattori, T; Hayashizaki, N ^[2]; Ishibashi, T ^[3]; Kanesue, T ^[4]; Kashiwagi, H ^[5]; Kondo, K ^[1]; Okamura, M ^[6]

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1. Department of Energy Sciences, Tokyo Institute of Technology, Yokohama 226-8502 (Japan)
2. Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, Tokyo 152-8550 (Japan)
3. Department of Nuclear Engineering, Tokyo Institute of Technology, Tokyo 152-8550 (Japan)
4. Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Fukuoka 819-0395 (Japan)
5. Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency, Gunma 370-1207 (Japan)
6. Collider-Accelerator Department, Brookhaven National Laboratory, New York 11973 (United States)

We have been investigating direct plasma injection scheme (DPIS) for high-intensity heavy-ion beam acceleration. In the DPIS, laser-produced plasma is directly injected into a radio frequency quadrupole (RFQ) linac. To study the beam dynamics of the ion injection in the DPIS, we tracked particle motions in the RFQ matching section using three-dimensional particle-in-cell method. As a result of the numerical simulation, we found that the electrostatic field generated by the extraction electrode reduces the transmission efficiency. To avoid the radially defocusing force, the input beam into the RFQ has to be initially convergent. In the DPIS, further optimization of the plasma density is required for better matching.

• OSTI ID: 22053911
• Journal Information: Review of Scientific Instruments, Vol. 81, Issue 2; Conference: ICIS 2009: 13. international conference on ion sources, Gatlinburg, TN (United States), 20-25 Sep 2009; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
BEAM DYNAMICS
BEAM EXTRACTION
COMPUTERIZED SIMULATION
EFFICIENCY
ELECTRODES
HEAVY IONS
ION BEAMS
LASER-PRODUCED PLASMA
LINEAR ACCELERATORS
OPTIMIZATION
PLASMA BEAM INJECTION
PLASMA DENSITY
RADIOWAVE RADIATION
RF SYSTEMS
THREE-DIMENSIONAL CALCULATIONS