Neutral beam diagnostics for the HT-7 tokamak

Journal Article · Fri Oct 01 04:00:00 EDT 2004 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1787952· OSTI ID:20636665

Hu, L Q; Wan, B N; Hu, C D; Liu, B H; Wu, Z W; Huang, J; Rowan, William L; Huang, H; Gentle, K ^[1]

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1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)

A diagnostic neutral beam will be added to the diagnostic set so that charge-exchange recombination spectroscopy (CXRS) can be used to acquire ion temperature and rotation, and to study the role of the ion thermal transport, the radial electric field, and turbulence in the high performance HT-7 plasma. In normal operation, the diagnostic neutral beam (DNB) can produce 5.5 A of extracted beam current in hydrogen at an energy of 50 keV with a pulse length of 0.1 s. D and He beams can be produced as well. The beam can be modulated at 0.5 kHz. The CXRS system will have 45 spatial observation chords and employ a spectrometer, which can acquire spectra at the rate of 100 Hz. In this article, the capabilities and implementation of the DNB and CXRS systems are presented.

• OSTI ID: 20636665
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 75; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM CURRENTS
CHARGE EXCHANGE
DEPARTURE NUCLEATE BOILING
DEUTERIUM
ELECTRIC FIELDS
ELECTRON TEMPERATURE
HELIUM
HT-7 TOKAMAK
ION TEMPERATURE
KEV RANGE 10-100
KHZ RANGE 01-100
PARTICLE BEAMS
PLASMA CONFINEMENT
PLASMA DIAGNOSTICS
SPECTROMETERS
SPECTROSCOPY
STEADY-STATE CONDITIONS