Enhancements to the Compact Helical System fast ion loss probe
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451 (United States)
- National Institute of Fusion Science, Toki, Gifu (Japan)
- National Graduate University for Advanced Study, Toki, Gifu (Japan)
A scintillator-based fast ion loss probe has been used to measure 40 keV neutral beam ion loss from Compact Helical System plasmas. Modifications have recently been made to the probe to expand the range of gyroradius covered and to increase the probe acceptance at low pitch angles. In addition, a lamp has been installed inside the probe to facilitate calibration of the scintillator position within the field of view of the video camera. Finally, a Faraday cup structure, integral with the scintillator, has been added to allow direct measurement of the ion current to the probe. This last feature allows much easier absolute calibration of the diagnostic. {copyright} {ital 1999 American Institute of Physics.}
- OSTI ID:
- 295659
- Report Number(s):
- CONF-980605-; ISSN 0034-6748; TRN: 99:001845
- Journal Information:
- Review of Scientific Instruments, Vol. 70, Issue 1; Conference: 12. topical conference on high-temperature plasma diagnostics, Princeton, NJ (United States), 7-11 Jun 1998; Other Information: PBD: Jan 1999
- Country of Publication:
- United States
- Language:
- English
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