Open AccessDesign and analysis of the cold cathode ion source for 200 MeV superconducting cyclotron
Author(s) -
Shiwen Xu,
G. Chen,
Manman Xu,
Oleg Karamyshev,
G. Karamyshev,
G. Shirkov,
L. Calabretta
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1350/1/012065
Subject(s) - ion source , cyclotron , atomic physics , cold cathode , ion , cathode , ion beam , ion beam deposition , beam (structure) , particle accelerator , ion gun , materials science , electron , nuclear physics , chemistry , physics , plasma , optics , organic chemistry
SC200 is a superconducting isochronous cyclotron which generates 200 MeV, 400 nA proton beam for particle therapy. The cold-cathode-type Penning ion gauge (PIG) ion source for the internal ion source of SC200 has been selected as an alternative and preliminary designed. In this paper, design of ion source and test bench are demonstrated. Currently, the properties of ion source have been simulated for a variety of electric field and magnetic field distributions. The secondary electron emission in electromagnetic field has been simulated. It provides reference for the optimization design of arc chamber. In addition, the sample of cold-cathode-type ion source has been tested on the test bench and extracted beam intensity has been measured over 200 μ A.