Quick change axial cold cathode ion source
An axial cold cathode heavy ion source was built and successfully operated on the Michigan State University Cyclotron. This ion source was designed to minimize the time to change cathodes and thereby increase the cyclotron efficiency. The ion source change time (i.e. the time to change the cathode and restrike the arc) can be less than 15 minutes. In particular, all source parts that need to be cleaned at the end of a source lifetime are easily removed and clean pieces substituted. No internal ion source vacuum and water seals are broken. The ion source operates at gas flows less than 1 cc/min. and typically at /sup 1///sub 2/ cc/min. This reduced gas usage results in a good accelerating chamber pressure and small attenuation of the accelerated beam to the external beam stop. The external ion beam intensity for a given particle and charge state is comparable to the intensity obtained from Oak Ridge and Berkeley.
- Research Organization:
- Michigan State Univ., East Lansing
- OSTI ID:
- 7087225
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. NS-24:3; ISSN IETNA
- Country of Publication:
- United States
- Language:
- English
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