Laser system for high resolution Thomson scattering diagnostics on the COMPASS tokamak

0349432 - ÚFP 2011 RIV US eng J - Článek v odborném periodiku
Böhm, Petr - Šesták, David - Bílková, Petra - Aftanas, Milan - Weinzettl, Vladimír - Hron, Martin - Pánek, Radomír - Baillon, L. - Dunstan, M.R. - Naylor, G. - Walsh, M.J.
Laser system for high resolution Thomson scattering diagnostics on the COMPASS tokamak.
Review of Scientific Instruments. Roč. 81, č. 10 (2010), 10D511-10D511. ISSN 0034-6748. E-ISSN 1089-7623.
[TOPICAL CONFERENCE ON HIGH-TEMPERATURE PLASMA DIAGNOSTICS/18th./. Wildwood, New Jersey, 16.05.2010-20.05.2010]
Grant CEP: GA ČR GA202/09/1467; GA ČR GD202/08/H057; GA MŠMT 7G09042
Výzkumný záměr: CEZ:AV0Z20430508
Klíčová slova: plasma boundary layers * plasma diagnostics * Tokamak devices
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 1.598, rok: 2010
http://link.aip.org/link/?RSI/81/10D511

A new Thomson scattering diagnostic has been designed and is currently being installed on the COMPASS tokamak in IPP Prague in the Czech Republic. The requirements for this system are very stringent with approximately 3 mm spatial resolution at the plasma edge. A critical part of this diagnostic is the laser source. To achieve the specified parameters, a multilaser solution is utilized. Two 30 Hz 1.5 J Nd:YAG laser systems, used at the fundamental wavelength of 1064 nm, are located outside the tokamak area at a distance of 20 m from the tokamak. The design of the laser beam transport path is presented. The approach leading to a final choice of optimal focusing optics is given. As well as the beam path to the tokamak, a test path of the same optical length was built. Performance tests of the laser system carried out using the test path are described.
Trvalý link: http://hdl.handle.net/11104/0189676