Electron cyclotron emission diagnostics on KSTAR tokamak

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3491224· OSTI ID:22055826

Jeong, S H ^[1]; Lee, K D; Kwon, M ^[2]; Kogi, Y ^[3]; Kawahata, K; Nagayama, Y ^[4]; Mase, A ^[5]

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1. Korea Atomic Energy Research Institute, 1045 Daedeokdaero, Daejeon 305-353 (Korea, Republic of)
2. National Fusion Research Institute, 113 Gwahangno, Daejeon 305-333 (Korea, Republic of)
3. Fukuoka Institute of Technology, Higashiku, Fukuoka 811-0295 (Japan)
4. National Institute for Fusion Science, Toki, Gifu 509-5292 (Japan)
5. KASTEC, Kyushu University, Kasuga, Fukuoka 816-8580 (Japan)

A new electron cyclotron emission (ECE) diagnostics system was installed for the Second Korea Superconducting Tokamak Advanced Research (KSTAR) campaign. The new ECE system consists of an ECE collecting optics system, an overmode circular corrugated waveguide system, and 48 channel heterodyne radiometer with the frequency range of 110-162 GHz. During the 2 T operation of the KSTAR tokamak, the electron temperatures as well as its radial profiles at the high field side were measured and sawtooth phenomena were also observed. We also discuss the effect of a window on in situ calibration.

• OSTI ID: 22055826
• Journal Information: Review of Scientific Instruments, Vol. 81, Issue 10; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALIBRATION
CYCLOTRONS
ELECTRON EMISSION
ELECTRON TEMPERATURE
GHZ RANGE
OPTICAL SYSTEMS
PLASMA DIAGNOSTICS
PLASMA INSTABILITY
RADIOMETERS
SAWTOOTH OSCILLATIONS
TOKAMAK DEVICES
WAVEGUIDES