| Project/Area Number |
63044046
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| Research Category |
Grant-in-Aid for Overseas Scientific Survey.
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| Allocation Type | Single-year Grants |
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| Section | Joint Research |
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
ARAI Eiichi Tokyo Institute of Technology (Professor), 原子炉工学研究所, 教授 (50016846)
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| Co-Investigator(Kenkyū-buntansha) |
OGURI Yoshiyuki Tokyo Institute of Technology (Research Associate), 原子炉工学研究所, 助手 (90160829)
ROLF Muller 西独重イオン研究所, 線型加速器部, 主任研究員
MUELLER Rolf W. Gesellschaft fuer Schwerionenforschung mbH (W.Germany) (Senior Researcher)
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| Project Period (FY) |
1988 – 1989
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| Project Status |
Completed (Fiscal Year 1989)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1989: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1988: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | Linear Accelerator / Radio Frequency Quadrupole / High Intensity Beam / Beam Instability / Beam Diagnosis / Schottky Noise |
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| Research Abstract |
Beam-induced stochastic signals have been measured in an RFQ cavity with a spectrum analyzer. Experimental results are compared with theoretical predictions calculated with an assumption of incoherent particle oscillations. A preliminary assignment is given for stochastic peaks on measured spectra. In order to investigate the effect of beam oscillations on the electromagnetic field in the cavity, voltage distributions have been analyzed using an equivalent circuit model. Approximate quantitative predictions of the voltage distribution have been successfully obtained for cavities with mismatched beam-envelope oscillations.
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