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[en] The 14.5 GHz ECR4 source supplied to CERN in the framework of the Heavy Ion Facility collaboration provided Pb27+ operational beams to a new custom built linac in 1994. This source, which operates in the pulsed 'afterglow' mode, quickly met its design specification of 80 eμA and now provides currents >100 eμA regularly. Early source tests showed the existence of extremely stable modes of operation. In the search for higher intensities a number of experiments have been performed on plasma gas composition, RF power matching, extraction, beam pulse compression and a biased dynode. The results of these tests will be presented along with further ideas to improve source performance. (author)
Source
Hill, C.; Vretenar, M. (eds.); European Organization for Nuclear Research, Geneva (Switzerland); 500 p; ISBN 92-9083-093-X; 
; ISSN 0007-8328; ; 15 Nov 1996; p. 366-368; Linac96: 18. international linear accelerator conference; Geneva (Switzerland); 26-30 Aug 1996; Country of input: International Atomic Energy Agency (IAEA); 5 refs, 5 figs
; ISSN 0007-8328; ; 15 Nov 1996; p. 366-368; Linac96: 18. international linear accelerator conference; Geneva (Switzerland); 26-30 Aug 1996; Country of input: International Atomic Energy Agency (IAEA); 5 refs, 5 figs