AN ECR ION SOURCE FOR RADIOACTIVE BEAMS AT TRIUMF

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Abstract
The TRUMF/University of Alberta Ion Source is currrently undergoing its final construction phase in preparation for rigorous off-lime testing. The design uses a standard samarium-cobalt/copper coil combination to produce the required radial and axial magnetic fields whose calculated values were confirmed in recent magnetic field surveys. The source can operate at RF frequencies between 6.6 and 10.5 GHz. All major elements of the system have been assembled with extraction of a beam expected in early August. Using an analyzing magnet and a precision gas leak, accurate measurements of the ionization efficiency of the source will be carried out. It is planned to test the source under a varity of conditions. These test are expected to be completed by the end of the year. The results of these tests will be used as a basis for the final design work that must be done before the source can be put on-line to produce radioactive ion beams at TRUMF

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