Published February 2010 | Version v1
Journal article Metadata-only

Charge Exchange Recombination Spectroscopy Based on Diagnostic Neutral Beam in HT-7 Tokamak

Creators

  • 1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)
  • 2. Fusion Research Center, University of Texas at Austin 78712 (United States)
  • 3. School of Natural Sciences, Anhui Agricultural University, Hefei 230036 (China)

Description

Charge exchange recombination spectroscopy (CXRS) based on a diagnostic neutral beam (DNB) installed in the HT-7 tokamak is introduced. DNB can provide a 6 A extracted current at 50 kV for 0.1 s in hydrogen. It can penetrate into the core plasma in HT-7. The CXRS system is designed to observe charge exchange (CX) transitions in the visible spectrum. CX light from the beam is focused onto 10 optical fibers, which view the plasma from -5 cm to 20 cm. The CXRS system can measure the ion temperature as low as 0.1 keV. With CXRS, the local ion temperature profile in HT-7 was obtained for the first time.

Availability note (English)

Available from http://dx.doi.org/10.1088/1009-0630/12/1/03

Additional details

Identifiers

DOI
10.1088/1009-0630/12/1/03;

Publishing Information

Journal Title
Plasma Science and Technology
Journal Volume
12
Journal Issue
1
Journal Page Range
p. 11-14
ISSN
1009-0630

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41078964
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
CHARGE EXCHANGE; HT-7 TOKAMAK; HYDROGEN; ION TEMPERATURE; OPTICAL FIBERS; PLASMA; RECOMBINATION; SPECTROSCOPY
Descriptors DEC
CLOSED PLASMA DEVICES; ELEMENTS; FIBERS; NONMETALS; THERMONUCLEAR DEVICES; TOKAMAK DEVICES