Double pulse Thomson scattering system at RTP

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1147685· OSTI ID:451861

Beurskens, M N; Barth, C J; Chu, C C; Donne, A J; Herranz, J A; Lopes Cardozo, N J; van der Meiden, H J; Pijper, F J ^[1]

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1. FOM-Instituut voor Plasmafysica `Rijnhuizen`, Associatie Euratom-FOM, 3430 BE Nieuwegein (The Netherlands)

In this article a double pulse multiposition Thomson scattering diagnostic, under construction at RTP, is discussed. Light from a double pulsed ruby laser (pulse separation: 10{endash}800 {mu}s, max. 2{times}12.5 J) is scattered by the free electrons of the tokamak plasma and relayed to a Littrow polychromator for spectral analysis. The spectrally resolved light is recorded by two ICCD detectors. Simulations show that the system sensitivity will be such that electron temperatures in the range of 100 eV{endash}7 keV can be determined with an accuracy as good as 2{percent}{endash}3{percent} for electron densities of 10{sup 20} m{sup {minus}3}, with a spatial resolution down to 2.6 mm. With this diagnostic the dynamics of small scale structures in the electron temperature profile will be studied. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 451861
• Report Number(s): CONF-960543--
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 68; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCURACY
CCD image sensors
COMPUTERIZED SIMULATION
ELECTRON DENSITY
ELECTRON TEMPERATURE
IMAGE INTENSIFIERS
LIGHT SCATTERING
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA RADIAL PROFILES
RTP TOKAMAK
RUBY LASERS
SPATIAL RESOLUTION
THOMSON SCATTERING
TIME RESOLUTION
TOKAMAK DEVICES
measurement by laser beam
plasma temperature
plasma toroidal confinement