Electron Temperature and Density Measurements by the Unicity of Particle Confinement Time on the TCABR Tokamak
- Institute of Physics 'Gleb Wataghin', UNICAMP, 13083-970, Campinas, SP (Brazil)
- Institute of Physics, University of Sao Paulo, Sao Paulo, SP (Brazil)
- Center for Semiconductor Components (CCS), UNICAMP, 13083-870, Campinas, SP (Brazil)
The electron temperature Te and density ne at inner border side of plasma on TCABR tokamak are determined using the unicity of particle confinement time {tau}p. In this method, the signals from hydrogen Balmer series emissions like H alfa, beta and gama are measured with an absolutely intensity calibrated spectrometer during the discharge and the particle confinement time then is evaluated using these three emissions for large range of electron temperature and density, until the unique value of {tau}p is achieved. The results show that during the current plateau, the values of the edge electron density and temperature in high fill density discharge, present much strong variations compared to the low fill pressure because of larger edge turbulence activity.
- OSTI ID:
- 20898784
- Journal Information:
- AIP Conference Proceedings, Vol. 875, Issue 1; Conference: 16. IAEA technical meeting on research using small fusion devices; 11. Latin American workshop on plasma physics, Mexico City (Mexico), 30 Nov - 3 Dec 2005; 5-9 Dec 2005; Other Information: DOI: 10.1063/1.2405917; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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