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High resolution Thomson scattering diagnostic for measurements of radial profiles of electron temperature and density in the gas dynamic trap. / Lizunov, A; Berbasova, T; Khilchenko, A et al.

In: Review of Scientific Instruments, Vol. 94, No. 3, 033509, 01.03.2023.

Research output: Contribution to journalArticlepeer-review

Harvard

Lizunov, A, Berbasova, T, Khilchenko, A, Kvashnin, A, Puryga, E, Sandomirsky, A & Zubarev, P 2023, 'High resolution Thomson scattering diagnostic for measurements of radial profiles of electron temperature and density in the gas dynamic trap', Review of Scientific Instruments, vol. 94, no. 3, 033509. https://doi.org/10.1063/5.0123329

APA

Lizunov, A., Berbasova, T., Khilchenko, A., Kvashnin, A., Puryga, E., Sandomirsky, A., & Zubarev, P. (2023). High resolution Thomson scattering diagnostic for measurements of radial profiles of electron temperature and density in the gas dynamic trap. Review of Scientific Instruments, 94(3), [033509]. https://doi.org/10.1063/5.0123329

Vancouver

Lizunov A, Berbasova T, Khilchenko A, Kvashnin A, Puryga E, Sandomirsky A et al. High resolution Thomson scattering diagnostic for measurements of radial profiles of electron temperature and density in the gas dynamic trap. Review of Scientific Instruments. 2023 Mar 1;94(3):033509. doi: 10.1063/5.0123329

Author

Lizunov, A ; Berbasova, T ; Khilchenko, A et al. / High resolution Thomson scattering diagnostic for measurements of radial profiles of electron temperature and density in the gas dynamic trap. In: Review of Scientific Instruments. 2023 ; Vol. 94, No. 3.

BibTeX

@article{da42c0438823467ea442add068f10c4b,
title = "High resolution Thomson scattering diagnostic for measurements of radial profiles of electron temperature and density in the gas dynamic trap",
abstract = "The incoherent Thomson scattering diagnostic with multiple lines of sight is installed at the gas dynamic trap (GDT) for measurements of radial profiles of the plasma electron temperature and density. The diagnostic is built on the Nd:YAG laser operating at 1064 nm. The laser input beamline is provided with an automatic system for alignment status monitoring and correction. The collecting lens uses ∼90° scattering geometry having 11 lines of sight in total. Presently, six of them (covering the full plasma radius from the axis to the limiter) are equipped with high etendue (f/2.4) interference filter spectrometers. The design of the spectrometer's data acquisition system based on the {"}time stretch{"} principle allowed for the 12 bits vertical resolution with a sampling rate of 5 GSample/s and a maximum sustainable measurement repetition frequency of 40 kHz. The repetition frequency is the crucial parameter for the study of plasma dynamics with a new pulse burst laser to be started in early 2023. Results of the diagnostic operation in several GDT campaigns show that radial profiles are routinely delivered with the typical observation error of 2%-3% for Te ⩾ 20 eV in a single pulse. After Raman scattering calibration, the diagnostic is capable to measure the electron density profile with the resolution ne (min)≃4⋅1018m-3 and error bars of 5%.",
author = "A Lizunov and T Berbasova and A Khilchenko and A Kvashnin and E Puryga and A Sandomirsky and P Zubarev",
year = "2023",
month = mar,
day = "1",
doi = "10.1063/5.0123329",
language = "English",
volume = "94",
journal = "Review of Scientific Instruments",
issn = "0034-6748",
publisher = "American Institute of Physics",
number = "3",

}

RIS

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T1 - High resolution Thomson scattering diagnostic for measurements of radial profiles of electron temperature and density in the gas dynamic trap

AU - Lizunov, A

AU - Berbasova, T

AU - Khilchenko, A

AU - Kvashnin, A

AU - Puryga, E

AU - Sandomirsky, A

AU - Zubarev, P

PY - 2023/3/1

Y1 - 2023/3/1

N2 - The incoherent Thomson scattering diagnostic with multiple lines of sight is installed at the gas dynamic trap (GDT) for measurements of radial profiles of the plasma electron temperature and density. The diagnostic is built on the Nd:YAG laser operating at 1064 nm. The laser input beamline is provided with an automatic system for alignment status monitoring and correction. The collecting lens uses ∼90° scattering geometry having 11 lines of sight in total. Presently, six of them (covering the full plasma radius from the axis to the limiter) are equipped with high etendue (f/2.4) interference filter spectrometers. The design of the spectrometer's data acquisition system based on the "time stretch" principle allowed for the 12 bits vertical resolution with a sampling rate of 5 GSample/s and a maximum sustainable measurement repetition frequency of 40 kHz. The repetition frequency is the crucial parameter for the study of plasma dynamics with a new pulse burst laser to be started in early 2023. Results of the diagnostic operation in several GDT campaigns show that radial profiles are routinely delivered with the typical observation error of 2%-3% for Te ⩾ 20 eV in a single pulse. After Raman scattering calibration, the diagnostic is capable to measure the electron density profile with the resolution ne (min)≃4⋅1018m-3 and error bars of 5%.

AB - The incoherent Thomson scattering diagnostic with multiple lines of sight is installed at the gas dynamic trap (GDT) for measurements of radial profiles of the plasma electron temperature and density. The diagnostic is built on the Nd:YAG laser operating at 1064 nm. The laser input beamline is provided with an automatic system for alignment status monitoring and correction. The collecting lens uses ∼90° scattering geometry having 11 lines of sight in total. Presently, six of them (covering the full plasma radius from the axis to the limiter) are equipped with high etendue (f/2.4) interference filter spectrometers. The design of the spectrometer's data acquisition system based on the "time stretch" principle allowed for the 12 bits vertical resolution with a sampling rate of 5 GSample/s and a maximum sustainable measurement repetition frequency of 40 kHz. The repetition frequency is the crucial parameter for the study of plasma dynamics with a new pulse burst laser to be started in early 2023. Results of the diagnostic operation in several GDT campaigns show that radial profiles are routinely delivered with the typical observation error of 2%-3% for Te ⩾ 20 eV in a single pulse. After Raman scattering calibration, the diagnostic is capable to measure the electron density profile with the resolution ne (min)≃4⋅1018m-3 and error bars of 5%.

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