Nuclear Techniques ›› 2014, Vol. 37 ›› Issue (01): 10201-010201.doi: 10.11889/j.0253-3219.2014.hjs.37.010201

• LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS • Previous Articles     Next Articles

Physics design of a compact medical cyclotron

HE Xiaozhong YANG Guojun LONG Jidong PANG Jian ZHANG Kaizhi SHI Jinshui   

  1. (Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China)
  • Received:2013-09-29 Revised:2013-12-04 Online:2014-01-10 Published:2014-01-20

Abstract:

Background: A compact cyclotron with energy of 11 MeV and current of 50 ?A is under construction in Institute of Fluid Physics of China Academy of Engineering Physics. The compact cyclotron is developed for medical isotope production. Purpose: To minimize the cost and to shorten the time of the development of the compact cyclotron, a lot of efforts were dedicated to the physics design of the compact cyclotron. Methods: Physics design of the main magnet was performed using TOSCA software, and start-to-end beam dynamics design was performed using home-made software CYCDYN. Results: Physics design of the compact cyclotron was given in details. Design methods and results of the main subsystems (including ion source, radial sector focusing magnet, RF cavity, central region and extraction system) were also given in this paper. Conclusion: Now commissioning of this cyclotron has been finished, and the goal for extracting proton beams of 11 MeV and 50 uA on average has been achieved. Physics design of the cyclotron has been validated by the commissioning results.

Key words: Compact cyclotron, Ion source, Magnet, Central region, Extraction system