Application of wide-aperture resonators with small diffraction loss to diagnostics of a tokamak plasma by the laser photoionization technique

Authors
Petrov, YV Razdobarin, GT Tolstyakov, SY
Citation
Yv. Petrov et al., Application of wide-aperture resonators with small diffraction loss to diagnostics of a tokamak plasma by the laser photoionization technique, TECH PHYS, 45(1), 2000, pp. 25-29
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
TECHNICAL PHYSICS
ISSN journal
10637842 → ACNP
Volume
45
Issue
1
Year of publication
2000
Pages
25 - 29
Database
ISI
SICI code
1063-7842(2000)45:1<25:AOWRWS>2.0.ZU;2-I
Abstract
To increase the sensitivity of the photoionization diagnostics, efficient l aser systems for plasma probing are developed based on stable resonator con figurations with small diffraction loss. The systems meet the requirements for multipass intracavity probing and make it possible to increase the reso nator length to conform to a large size of the tokamak chamber. Demonstrati on experiments were carried out in the FT-1 tokamak. The results obtained c onfirm the possibility of reliable measurements of the hydrogen neutral den sity in the range 10(8)-10(9) cm(-3) in tokamak plasmas. (C) 2000 MAIK "Nau ka/Interperiodica".