Data Acquisition System and Data Processing for the New Thomson Scattering System on the COMPASS Tokamak

0371874 - ÚFP 2012 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Aftanas, Milan - Bílková, Petra - Böhm, Petr - Weinzettl, Vladimír - Stöckel, Jan - Hron, Martin - Pánek, Radomír - Scannell, R. - Walsh, M.
Data Acquisition System and Data Processing for the New Thomson Scattering System on the COMPASS Tokamak.
WDS 2010 - Proceedings of Contributed Papers. Vol. 2. Prague: MATFYZPRESS, 2010 - (Šafránková, J.; Pavlů, J.), s. 28-32. WDS'10. ISBN 978-80-7378-140-8.
[Annual Conference of Doctoral Students - WDS 2010 /19th./. Prague (CZ), 01.06.2010-04.06.2010]
Grant CEP: GA ČR GA202/09/1467; GA ČR GD202/08/H057; GA MŠMT 7G09042
Výzkumný záměr: CEZ:AV0Z20430508
Klíčová slova: plasma diagnostics * Tokamak devices
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
http://server.ipp.cas.cz/~vwei/work/wds2010_205_f2.pdf

The Thomson scattering (TS) will be one of crucial plasma diagnostics of the COMPASS tokamak. This newly build-up multi-point system consists of two Nd:YAG lasers (1.6J at 1064nm, 30Hz each) and cascade filter polychromators with avalanche photodiodes. It will enable measurements of both the electron temperature Te (20eV − 5000eV ) and density ne (1019 − 1020m−3) profiles with spatial resolution up to 3mm in the vertical direction in 56 spatial points. The uniquely designed complex data acquisition system based on fast analog digital convertors (1GS/s) reflects the need to retrieve/digitize the signal originated from scattering process of the laser pulse lasting less than 10ns. This paper presents a detailed review of the architecture of the control and the data acquisition (DAQ) system and its features. LabViewr will be used as a main layer for the TS data acquisition. Routines specifically written for controlling the DAQ of TS on COMPASS are presented.
Trvalý link: http://hdl.handle.net/11104/0205292