The Edge Rotation and Temperature Diagnostic System on EAST Tokamak
- Resource Type
- Conference
- Authors
- Yingying, Li; Fu, Jia; Shi, Yuejing; Xiong, Yanwei; Zhang, Hongming; Lv, Bo; Shen, Yongcai
- Source
- 2012 Symposium on Photonics and Optoelectronics Photonics and Optoelectronics (SOPO), 2012 Symposium on. :1-6 May, 2012
- Subject
- Photonics and Electrooptics
Fields, Waves and Electromagnetics
Computing and Processing
Communication, Networking and Broadcast Technologies
Charge coupled devices
Optical fiber dispersion
Temperature measurement
Plasma temperature
Tokamaks
Lenses
- Language
- ISSN
- 2156-8464
2156-8480
The Edge rotation and temperature diagnostic system (ERD) on EAST tokamak is designed to obtain profiles of the ion temperature and rotation velocity at the edge of the plasma. Multiple toroidal and poloidal chords are coupled to the entrance multi-slit of one spectrometer equipped with back-illuminated charged coupled device (CCD) camera that has a high quantum efficiency and high-readout speed. The cameral records spatially and spectrally resolved emission profiles with real time digitization. Line-integrated radiation from different ionization stages in the visible range is chosen as representative of the plasma in their regions of maximum emission. The diagnostic including the diagnostic cannula, collection assembly and spectrometer as well as CCD is discussed. The initial test results of the system are given.