A multichannel interference filter spectrometer used in Thomson scattering measurements on a plasma

Ng, K H

doi:10.1088/0022-3735/5/4/011

J. Phys. E: Sci. Instrum.

1972

DOI: 10.1088/0022-3735/5/4/011

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A multichannel interference filter spectrometer used in Thomson scattering measurements on a plasma

K H Ng¹

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1982

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Cited by 2 publications

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Thomson Scattering Applied to a Noisy Radiative Plasma

Sijde

Adema

Haas

et al. 1982

Contrib Plasma Phys

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Thomson scattering with a 1.5 ms long pulse mode 20 J ruby laser has been applied to a radiative argon plasma with electron densities Itg from 2.5 lola ma to 1.5 lozo m-3 and an electron temperature Te of about 3 eV. Photon counting techniques have been used. The accuracy of ne and Te to be reached is about 5% after 10 shots. The signal to noise ratio SIN has been optimized by the use of optical filters and a special purpose grating. The effects of these elements on SIN have been calculated. The entrance angle, transmission and quantum efficiency have also been optimized. A comparison between 5 possible h e r systems, including a normal mode and a Qswitched mode ruby laser, has been carried out.

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Thomson Scattering Applied to a Noisy Radiative Plasma

Sijde

Adema

Haas

et al. 1982

Contrib Plasma Phys

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Comparison of Langmuir Double Probe and Laser Scattering Measurements of Plasma Parameters

Irisawa

1973

Review of Scientific Instruments

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Langmuir double probe and Thomson scattering measurements of density and temperature were made on a plasma with a view to estimating the reliability of probe measurements. The plasma used was the afterglow of a small θ-pinch plasma for which density and temperature were of the order of 1015 cm−3 and 1 eV, respectively. There was close agreement between probe measurement and scattering measurement of the electron temperature while the density as measured by the probe was lower by a factor of about 4 as compared to the scattering measurement.

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A multichannel interference filter spectrometer used in Thomson scattering measurements on a plasma

Cited by 2 publications

References 9 publications

Thomson Scattering Applied to a Noisy Radiative Plasma

Thomson Scattering Applied to a Noisy Radiative Plasma

Comparison of Langmuir Double Probe and Laser Scattering Measurements of Plasma Parameters

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