Fast ion loss diagnostic plans for the National Spherical Torus Experiment

D. S. Darrow; R. Bell; D. W. Johnson; H. Kugel; J. R. Wilson; F. E. Cecil; R. Maingi; A. Krasilnikov; A. Alekseyev

doi:10.1063/1.1319358

Fast ion loss diagnostic plans for the National Spherical Torus Experiment

D. S. Darrow, R. Bell, D. W. Johnson, H. Kugel, J. R. Wilson, F. E. Cecil, R. Maingi, A. Krasilnikov, A. Alekseyev

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The prompt loss of neutral beam ions from the National Spherical Torus Experiment 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.

Original language	English (US)
Pages (from-to)	784-787
Number of pages	4
Journal	Review of Scientific Instruments
Volume	72
Issue number	1 II
DOIs	https://doi.org/10.1063/1.1319358
State	Published - Jan 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.1319358

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title = "Fast ion loss diagnostic plans for the National Spherical Torus Experiment",

abstract = "The prompt loss of neutral beam ions from the National Spherical Torus Experiment 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.",

author = "Darrow, \{D. S.\} and R. Bell and Johnson, \{D. W.\} and H. Kugel and Wilson, \{J. R.\} and Cecil, \{F. E.\} and R. Maingi and A. Krasilnikov and A. Alekseyev",

year = "2001",

month = jan,

doi = "10.1063/1.1319358",

language = "English (US)",

volume = "72",

pages = "784--787",

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TY - JOUR

T1 - Fast ion loss diagnostic plans for the National Spherical Torus Experiment

AU - Darrow, D. S.

AU - Bell, R.

AU - Johnson, D. W.

AU - Kugel, H.

AU - Wilson, J. R.

AU - Cecil, F. E.

AU - Maingi, R.

AU - Krasilnikov, A.

AU - Alekseyev, A.

PY - 2001/1

Y1 - 2001/1

N2 - The prompt loss of neutral beam ions from the National Spherical Torus Experiment 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.

AB - The prompt loss of neutral beam ions from the National Spherical Torus Experiment 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.

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JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 1 II

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Fast ion loss diagnostic plans for the National Spherical Torus Experiment

Abstract

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