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Chinese Physics C> 2007, Vol. 31> Issue(3) : 292-295 

Wobbling Magnet Design for Beam Line of CYCIAE-30 Medical Cyclotron

  •  China Institute of Atomic Energy, Beijing 102413, China

  • The beam extracted from cyclotron is of Gaussian distribution, but in many applications the uniformly distributed beam is needed. There are some methods to achieve uniform beam, but the uniformity is less than expected. This paper introduces the process of the wobbling magnet design which can get the high uniform beam. On the base of the design theory and the measurement to the wobbling magnet, we can confirm that there has high uniform beam on the target under the wobbling magnet effect. It is the first time to design and manufacture the wobbling magnet by ourselves in our country, and the measurement results show that the magnetic field in the wobbling magnet are satisfied the requirement of the storage wobbling magnet.
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  • References

    [1] . SUN Zu-Xun, ZHANG Xing-Zhi, FAN Ming-Wu et al.Nucear Science and Engineering, 1997, 17(2): 157-165(in Chinese)(孙祖训，张兴志，樊明武等，核科学与工程:157-165)2. FAN Ming-Wu, ZHANG Tian-Jue. Initial Operation of CIAE Medically Used Cyclotron. Proceeding of the 1997 Particle Accelerator Conference. Vacouver: IEEE, 1997,3834-38363. ZHANG Tian-Jue, CHEN Yong, FAN Ming-Wu. Beam Transport Line of CIAE Medical Cyclotron and Its Mag-netic Elements Design Studies. Proceeding of the 1993 Particle Accelerator Conference. Vacouver: IEEE, 1993, 306-3084. CHUW T.Wobbler Facility for Biomedical Experiments at the Bevalac. IEEE Transactions on Nuclear Science, 1985,NS-32(5): 3321-3323

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JIA Xian-Lu, ZHANG Tian-Jue, LU Yin-Long, AI Chang-Jun, CHU Cheng-Jie, GUAN Feng-Ping and XING Jian-Sheng. Wobbling Magnet Design for Beam Line of CYCIAE-30 Medical Cyclotron[J]. Chinese Physics C, 2007, 31(3): 292-295.
JIA Xian-Lu, ZHANG Tian-Jue, LU Yin-Long, AI Chang-Jun, CHU Cheng-Jie, GUAN Feng-Ping and XING Jian-Sheng. Wobbling Magnet Design for Beam Line of CYCIAE-30 Medical Cyclotron[J]. Chinese Physics C, 2007, 31(3): 292-295. shu
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Received: 2006-07-06
Revised: 2006-08-25
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Wobbling Magnet Design for Beam Line of CYCIAE-30 Medical Cyclotron

    Corresponding author: JIA Xian-Lu,
  • China Institute of Atomic Energy, Beijing 102413, China
  • Received Date: 2006-07-06
  • Accepted Date: 2006-08-25
  • Available Online: 2007-03-05

Abstract: The beam extracted from cyclotron is of Gaussian distribution, but in many applications the uniformly distributed beam is needed. There are some methods to achieve uniform beam, but the uniformity is less than expected. This paper introduces the process of the wobbling magnet design which can get the high uniform beam. On the base of the design theory and the measurement to the wobbling magnet, we can confirm that there has high uniform beam on the target under the wobbling magnet effect. It is the first time to design and manufacture the wobbling magnet by ourselves in our country, and the measurement results show that the magnetic field in the wobbling magnet are satisfied the requirement of the storage wobbling magnet.

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