Published March 1976 | Version v1
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Thomson scattering measuring device using high sensitivity photomultipliers: 16% up to 860nm

Creators

Description

Photomultipliers with high quantum efficiency were used to observe the entire rubis laser light spectrum scattered by a plasma. The optical and electronic acquisition device used to study this spectrum is described. The spectra obtained revealed a dissymmetry larger than that expected from relativistic theory. These results could not be interpreted. The diagnostic sensitivity allows the measurement of low electron densities (2.1012ecm-3)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (French)

L'utilisation de photomultiplicateurs a rendement quantique eleve a permis l'observation integrale du spectre de lumiere diffusee par un plasma pour un laser a rubis. Ce rapport decrit l'ensemble du dispositif optique et electronique d'acquisition du spectre de lumiere diffusee. Les spectres obtenus presentent une dissymetrie superieure a la dissymetrie prevue en theorie relativiste. L'interpretation de ces resultats n'est pas resolue. La sensibilite du diagnostic permet de mesurer de faibles densites electroniques (2.1012ecm-3)

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Additional details

Additional titles

Original title (French)
Dispositif de mesure par diffusion Thomson utilisant des photomultiplicateurs sensibles: 16% jusqu'a 860nm

Publishing Information

Imprint Pagination
43 p.
Report number
EUR-CEA-FC--814

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
7266679
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
ELECTRON DENSITY; ELECTRONIC CIRCUITS; LASER RADIATION; PHOTOMULTIPLIERS; PLASMA DIAGNOSTICS; RADIATION DETECTION; SENSITIVITY; THOMSON SCATTERING
Descriptors DEC
ELECTROMAGNETIC RADIATION; INELASTIC SCATTERING; PHOTOTUBES; RADIATIONS; SCATTERING