Title :
The Edge Rotation and Temperature Diagnostic System on EAST Tokamak
Author :
Yingying, Li ; Fu Jia ; Shi Yuejing ; Xiong Yanwei ; Zhang Hongming ; Lv Bo ; Shen Yongcai
Author_Institution :
ASIPP, Inst. of Plasma Phys., Hefei, China
Abstract :
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.
Keywords :
Tokamak devices; ionisation; plasma boundary layers; plasma diagnostics; plasma flow; plasma temperature; plasma toroidal confinement; EAST tokamak; X-ray crystal spectrometer; back-illuminated charged coupled device camera; edge rotation system; high quantum efficiency; high-readout speed analysis; ion temperature profile; line-integrated radiation; poloidal chords; real time digitization; rotation velocity profile; spectrally resolved emission profiles; temperature diagnostic system; toroidal chords; Charge coupled devices; Lenses; Optical fiber dispersion; Plasma temperature; Temperature measurement; Tokamaks;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2012 Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0909-8
DOI :
10.1109/SOPO.2012.6270491
