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Original title:
Measurement of the Laser Beam Position and Width for the Thomson Scattering Diagnostics on Tokamak COMPASS
Authors: Aftanas, Milan ; Bílková, Petra ; Böhm, Petr ; Weinzettl, Vladimír ; Stöckel, Jan ; Hron, Martin ; Pánek, Radomír
Document type: Papers
Conference/Event: WDS 2011 - Annual Conference of Doctoral Students /20./, Prague (CZ), 2011-05-31 / 2011-06-03
Year: 2011
Language: eng
Abstract: COMPASS tokamak is equipped with new key diagnostic—Thomson scattering system. This unique multi-point system has been designed with the main aim to investigate electron density and temperature profiles on the COMPASS tokamak (R = 0.56 m, a = 0.18 m, BT max = 2.1 T). The spatial resolution is optimized namely for the pedestal studies (radial spatial resolution a/100). This contribution describes particular steps of optical alignment of the important part of the Thomson scattering system, Nd:YAG lasers (1.6 J at 1064 nm, 30 Hz). Laser beam width has to be precisely measured and laser beam position has to be precisely set before the measurement and checked for all laser shots to be able of decrypting the information about the plasma density and also to improve precision of the measurement. New tool for automatic measurement of the laser beam misalignment is introduced.
Keywords: plasma diagnostics; Tokamak devices
Project no.: CEZ:AV0Z20430508 (CEP), GA202/09/1467 (CEP), 7G10072 (CEP)
Funding provider: GA ČR, GA MŠk
Host item entry: Proceedings of the 20th Annual Conference of Doctoral Students - WDS 2011 , ISBN 978-80-7378-185-9
Note: Související webová stránka: http://www.mff.cuni.cz/veda/konference/wds/proc/proc-contents.php?year=2011
Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0204872
Permalink: http://www.nusl.cz/ntk/nusl-81242
The record appears in these collections:
Research > Institutes ASCR > Institute of Plasma Physics
Conference materials > Papers
Authors: Aftanas, Milan ; Bílková, Petra ; Böhm, Petr ; Weinzettl, Vladimír ; Stöckel, Jan ; Hron, Martin ; Pánek, Radomír
Document type: Papers
Conference/Event: WDS 2011 - Annual Conference of Doctoral Students /20./, Prague (CZ), 2011-05-31 / 2011-06-03
Year: 2011
Language: eng
Abstract: COMPASS tokamak is equipped with new key diagnostic—Thomson scattering system. This unique multi-point system has been designed with the main aim to investigate electron density and temperature profiles on the COMPASS tokamak (R = 0.56 m, a = 0.18 m, BT max = 2.1 T). The spatial resolution is optimized namely for the pedestal studies (radial spatial resolution a/100). This contribution describes particular steps of optical alignment of the important part of the Thomson scattering system, Nd:YAG lasers (1.6 J at 1064 nm, 30 Hz). Laser beam width has to be precisely measured and laser beam position has to be precisely set before the measurement and checked for all laser shots to be able of decrypting the information about the plasma density and also to improve precision of the measurement. New tool for automatic measurement of the laser beam misalignment is introduced.
Keywords: plasma diagnostics; Tokamak devices
Project no.: CEZ:AV0Z20430508 (CEP), GA202/09/1467 (CEP), 7G10072 (CEP)
Funding provider: GA ČR, GA MŠk
Host item entry: Proceedings of the 20th Annual Conference of Doctoral Students - WDS 2011 , ISBN 978-80-7378-185-9
Note: Související webová stránka: http://www.mff.cuni.cz/veda/konference/wds/proc/proc-contents.php?year=2011
Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0204872
Permalink: http://www.nusl.cz/ntk/nusl-81242
The record appears in these collections:
Research > Institutes ASCR > Institute of Plasma Physics
Conference materials > Papers
Record created 2012-01-19, last modified 2024-01-26