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Title: Fast ion loss diagnostic plans for NSTX

Abstract

The prompt loss of neutral beam ions from the National Spherical Torus Experiment (NSTX) is expected to be between 12% and 42% of the total 5 MW of beam power. There may, in addition, be losses of fast ions arising from high harmonic fast wave (HHFW) heating. Most of the lost ions will strike the HHFW antenna or the neutral beam dump. To measure these losses in the 2000 experimental campaign, thermocouples in the antenna, several infrared camera views, and a Faraday cup lost ion probe will be employed. The probe will measure loss of fast ions with E > 1 keV at three radial locations, giving the scrape-off length of the fast ions.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
757064
Report Number(s):
PPPL-3452
TRN: US0003702
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 13 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PARTICLE LOSSES; NSTX DEVICE; PLASMA DIAGNOSTICS; IONS; THERMOCOUPLES; CAMERAS; ION PROBES

Citation Formats

D. S. Darrow, R. Bell, D. W. Johnson, H. Kugel, J. R. Wilson, F. E. Cecil, R. Maingi, A. Krasilnikov, and A. Alekseyev. Fast ion loss diagnostic plans for NSTX. United States: N. p., 2000. Web. doi:10.2172/757064.
D. S. Darrow, R. Bell, D. W. Johnson, H. Kugel, J. R. Wilson, F. E. Cecil, R. Maingi, A. Krasilnikov, & A. Alekseyev. Fast ion loss diagnostic plans for NSTX. United States. doi:10.2172/757064.
D. S. Darrow, R. Bell, D. W. Johnson, H. Kugel, J. R. Wilson, F. E. Cecil, R. Maingi, A. Krasilnikov, and A. Alekseyev. Tue . "Fast ion loss diagnostic plans for NSTX". United States. doi:10.2172/757064. https://www.osti.gov/servlets/purl/757064.
@article{osti_757064,
title = {Fast ion loss diagnostic plans for NSTX},
author = {D. S. Darrow and R. Bell and D. W. Johnson and H. Kugel and J. R. Wilson and F. E. Cecil and R. Maingi and A. Krasilnikov and A. Alekseyev},
abstractNote = {The prompt loss of neutral beam ions from the National Spherical Torus Experiment (NSTX) is expected to be between 12% and 42% of the total 5 MW of beam power. There may, in addition, be losses of fast ions arising from high harmonic fast wave (HHFW) heating. Most of the lost ions will strike the HHFW antenna or the neutral beam dump. To measure these losses in the 2000 experimental campaign, thermocouples in the antenna, several infrared camera views, and a Faraday cup lost ion probe will be employed. The probe will measure loss of fast ions with E > 1 keV at three radial locations, giving the scrape-off length of the fast ions.},
doi = {10.2172/757064},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 13 00:00:00 EDT 2000},
month = {Tue Jun 13 00:00:00 EDT 2000}
}

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