High-resolution spectroscopy diagnostics for measuring impurity ion temperature and velocity on the COMPASS tokamak

0450801 - ÚFP 2016 RIV CH eng J - Článek v odborném periodiku
Weinzettl, Vladimír - Shukla, G. - Ghosh, J. - Melich, Radek - Pánek, Radomír - Tomeš, Matěj - Imríšek, Martin - Naydenkova, Diana - Varju, Jozef - Pereira, T. - Gomes, R. - Abramovic, I. - Jaspers, R. - Písařík, M. - Odstrčil, T. - Van Oost, G.
High-resolution spectroscopy diagnostics for measuring impurity ion temperature and velocity on the COMPASS tokamak.
Fusion Engineering and Design. 96-97, October (2015), s. 1006-1011. ISSN 0920-3796. E-ISSN 1873-7196.
[Symposium on Fusion Technology 2014(SOFT-28)/28./. San Sebastián, 29.09.2014-03.10.2014]
Grant CEP: GA ČR(CZ) GA14-35260S; GA ČR GAP205/11/2341; GA MŠMT(CZ) LM2011021
Institucionální podpora: RVO:61389021
Klíčová slova: Tokamak * Plasma spectroscopy * Plasma rotation * Ion temperature * CXRS
Obor OECD: Nuclear related engineering
Impakt faktor: 1.301, rok: 2015
http://www.sciencedirect.com/science/article/pii/S0920379615002355

High-resolution spectroscopy is a powerful tool for the measurement of plasma rotation as well as ion temperature using the Doppler shift of the emitted spectral lines and their Doppler broadening, respectively. Both passive and active diagnostic variants for the COMPASS tokamak are introduced. The passive diagnostic focused on the C III lines at about 465 nm is utilized for the observation of the poloidal plasma rotation. The current set-up of the measuring system is described, including the intended high-throughput optics upgrade. Recent measurements of poloidal plasma rotation of the order of 0–6 km/s are shown. The design of the new active diagnostic using a deuterium heating beam and based on charge exchange recombination spectroscopy (C VI line at 529 nm) is introduced. The results of the Simulation of Spectra code used to examine the feasibility of charge exchange measurements on COMPASS are shown and connected with a selection of the spectrometer coupled with the CCD camera
Trvalý link: http://hdl.handle.net/11104/0251996