Overview of the COMPASS diagnostics

Weinzettl, V.; Pánek, R.; Hron, M.; Ştöckel, J.; Žáček, F.; Havlíček, J.; Bílková, P.; Naydenkova, D.; Hacek, P.; Zaja̧c, J.; Dejarnac, R.; Horáček, J.; Adámek, Jiřı́; Mlynář, J.; Janky, F.; Aftanas, M.; Böhm, P.; Brotánková, J.; Šesták, D.; Ďuran, I.; Melich, Radek; Jareš, D.; Ghosh, Joydeep; Anda, G.; Veres, G. I.; Szappanos, A.; Zoletnik, S.; Berta, M.; Shevchenko, V.; Scannell, R.; Walsh, Michael J.; Müller, H. W.; Igochine, V.; Silva, A.; Manso, M. E.; Gomes, R.; Popov, Tsv K; Sarychev, D. V.; Kiselov, V. K.; Nanobashvili, S.

doi:10.1016/j.fusengdes.2010.12.024

Cited by 45 publications

(27 citation statements)

References 19 publications

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“…Electron density measured with TS is compared with line averaged electron density determined by interferometer diagnostic. 10 The TS n e profile is averaged over a plasma semi-diameter; plasma center vertical position is estimated from TS T e profiles. As can be seen in Fig.…”

Section: Comparison Of Ts and Interferometermentioning

confidence: 99%

High-resolution Thomson scattering system on the COMPASS tokamak: Evaluation of plasma parameters and error analysis

Aftanas

Böhm

Bílková

et al. 2012

Review of Scientific Instruments

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The electron density and temperature profiles measured by the Thomson scattering diagnostic on the COMPASS tokamak are used for estimation of electron kinetic energy, energy confinement time, and effective charge number Z(eff). Data are compared with the line-integrated electron density measured by a microwave interferometer in an ohmically heated plasma with a circular cross section. An error analysis of both electron temperature and density are performed by two methods-a constant chi-square boundaries method and a Monte Carlo simulation, determining asymmetrical error bars for the electron temperature.

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Section: Comparison Of Ts and Interferometermentioning

confidence: 99%

High-resolution Thomson scattering system on the COMPASS tokamak: Evaluation of plasma parameters and error analysis

Aftanas

Böhm

Bílková

et al. 2012

Review of Scientific Instruments

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“…COMPASS uses interferometer [4,5] operating with 2 mm electromagnetic wave using two near frequencies 139.3 and 140 GHz. A phase shift that appears between the both waves passing through the plasma along the same chord corresponds to the electron density.…”

Section: Electron Density Measurement and Controlmentioning

confidence: 99%

Plasma density control in real-time on the COMPASS tokamak

Janky

Hron

Havlíček

et al. 2015

Fusion Engineering and Design

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“…1,2 The set of installed diagnostics corresponds to the scientific programme focus on the edge plasma. 3 The high resolution multi-point Thomson scattering (TS) diagnostic has been designed to provide the electron temperature and density profiles on the COMPASS tokamak. 4 The diagnostic consists of two sub-systems, observing core and edge plasma region.…”

Section: Introductionmentioning

confidence: 99%

Edge Thomson scattering diagnostic on COMPASS tokamak: Installation, calibration, operation, improvements

Böhm

Aftanas

Bílková

et al. 2014

Review of Scientific Instruments

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The core Thomson scattering diagnostic (TS) on the COMPASS tokamak was put in operation and reported earlier. Implementation of edge TS, with spatial resolution along the laser beam up to ∼1/100 of the tokamak minor radius, is presented now. The procedure for spatial calibration and alignment of both core and edge systems is described. Several further upgrades of the TS system, like a triggering unit and piezo motor driven vacuum window shutter, are introduced as well. The edge TS system, together with the core TS, is now in routine operation and provides electron temperature and density profiles.

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Overview of the COMPASS diagnostics

Cited by 45 publications

References 19 publications

High-resolution Thomson scattering system on the COMPASS tokamak: Evaluation of plasma parameters and error analysis

High-resolution Thomson scattering system on the COMPASS tokamak: Evaluation of plasma parameters and error analysis

Plasma density control in real-time on the COMPASS tokamak

Edge Thomson scattering diagnostic on COMPASS tokamak: Installation, calibration, operation, improvements

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