Effects of intense ultraviolet radiation on electrostatic energy analyzers

Intense ultraviolet radiation from the plasma poses a significant problem for the implementation of heavy ion beam probe diagnostic systems on fusion‐oriented confinement devices. The radiation enters the electrostatic energy analyzer used to detect secondary ions, resulting in both a distortion of...

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Bibliographic Details
Published in:Review of scientific instruments 1985-05, Vol.56 (5), p.987-989
Main Authors: Mathew, J., Jennings, W. C., Hickok, R. L., Connor, K. A., Schoch, P. M., Hallock, G. A.
Format: Article
Language:English
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Summary:Intense ultraviolet radiation from the plasma poses a significant problem for the implementation of heavy ion beam probe diagnostic systems on fusion‐oriented confinement devices. The radiation enters the electrostatic energy analyzer used to detect secondary ions, resulting in both a distortion of the electric field inside the analyzer and noise generation in the detector channels. Data‐acquisition procedures and mechanical design techniques have been developed to significantly reduce these effects. We have also been successful in modeling the electric field distortion and have developed a data correction procedure based on this model. Methods for approaching the problems anticipated in future devices are also suggested.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1138013