Multichannel photomultiplier for multipass thomson scattering diagnostics
نویسندگان
چکیده
منابع مشابه
Exploitation of Avalanche Photodiodes for Thomson Scattering Diagnostics in Tokamaks
The COMPASS tokamak, originally from UKAEA, Culham laboratory, U.K., will be reinstalled at Institute of Plasma Physics, Prague. The scientific programme is focused mainly on the investigation of the edge plasma region with high temperature and density gradients called pedestal. Many innovations will be done and new diagnostics have to be constructed. One of the key diagnostics is an incoherent...
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Reinstalled tokamak COMPASS, originally from Culham Science Centre, is now operating at the Institute of Plasma Physics, Prague and many new optical diagnostics are being developed [Sestak et al, 2009]. For measurement of electron temperature and density profiles, high resolution incoherent Thomson scattering spectroscopy based on Nd:YAG laser and avalanche photodiodes is under development now....
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A scalable setup using injection by frequency conversion to establish a multipassing cavity for noncollective Thomson scattering on low density plasmas is presented. The cavity is shown to support >10 passes through the target volume with a 400% increase in energy on target versus a single-pass setup. Rayleigh scattering experiments were performed and demonstrate the viability of the cell to st...
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Applications of Thomson scattering diagnostics to two kinds of dielectric barrier discharge (DBD) plasmas are presented. One is that for the plasma display panel. In order to avoid laser perturbations for Xe containing discharges which are easily disturbed by laser beams with visible wavelengths, a laser Thomson scattering (LTS) system having an infrared laser (wavelength 1064 nm) as a light so...
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Wide field-of-view, high transparency birefringent filters (essentially fixed delay interferometers) are proposed for incoherent Thomson scattering measurements of the temperature and density of plasma free electrons. For thermal electrons, the optical coherence of the Thomson scattered light at an appropriately chosen optical path delay, is a unique function of the electron temperature and den...
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ژورنال
عنوان ژورنال: Brazilian Journal of Physics
سال: 2002
ISSN: 0103-9733
DOI: 10.1590/s0103-97332002000100011