TITLE

Ion source studies at the ORNL ECR source facility

AUTHOR(S)
Meyer, F. W.; Hale, J. W.
PUB. DATE
January 1990
SOURCE
Review of Scientific Instruments;Jan1990, Vol. 61 Issue 1, p324
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using high resolution magnetic analysis, we have measured energy spreads of Ar[sup + q] (1 < q < 12) ion beams extracted from the ORNL ECR ion source under a number of different ECR plasma conditions. The measured energy spreads for the different charge states fall in the range 8-20 eV per charge and are ail roughly proportional to the ion charge. In addition, we have used a combination of magnetic and electrostatic analysis to investigate the high charge state tail of the extracted Ar[sup + q] charge state distribution. Charge states up to + 16 have been positively identified; in addition, tentative identification of extracted Ar[sup +17] ions has been made, with total intensity in the range of 10-20 kHz.
ACCESSION #
9783013

 

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