MEPhIST-0 Tokamak for Education and Research

Krat, S.; Prishvitsyn, A. S.; Alieva, A. I.; Efimov, N. E.; Vinitskiy, E. A; Ulasevich, D.; Izarova, A.; Podolyako, F.; Белов, А. В.; Meshcheryakov, A. I.; Ongena, J.; Kharchev, Ν. K.; Chernenko, A. S.; Khayrutdinov, R.R.; Lukash, V.E.; Sinelnikov, D. N.; Bulgadaryan, D. G.; Sorokin, Ilya A.; Gubskiy, K. L.; Kaziev, Andrey V.; Kolodko, D. V.; Tumarkin, V.; Isakova, A.; Grunin, A. V.; Begrambekov, L. B.; Voskoboinikov, R. V.; Melnikov, Alexander

doi:10.1080/15361055.2022.2149033

Cited by 1 publication

(2 citation statements)

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“…In this method, the total displacement is the sum of drift-induced displacement and displacement arising from the presence of a vertical field, as demonstrated in figure 4(a). This approach was used in experiments [3][4][5][6] and enables the determination of the vertical field-associated displacement L f and, consequently, the evaluation of the ratio between the scattered vertical field and the toroidal field.…”

Section: Techniques Of Measurementmentioning

confidence: 99%

“…Due to the fact that such fields are usually much smaller than the toroidal ones, it is practically impossible to use directional magnetic sensors for their measurement because of the difficulty of correctly positioning them. For the MEPhIST-0 [3], assuming toroidal magnetic field 100 Gs. A Hall sensor axial deviation of * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

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Vertical stray field measurements using an electron beam in the MEPhIST-0 tokamak

Vinitskiy,

Efimov,

Prishvitsyn

et al. 2023

Plasma Phys. Control. Fusion

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In the MEPhIST-0 tokamak, toroidal magnetic coil system is implemented as a single continuous toroidal solenoid. This design ensures synchronized operation of each segment of the solenoid and requires only one power supply line to operate. However, this configuration has the downside of introducing stray vertical and radial magnetic field components, which result from the inclination of the solenoid segments. Such stray fields can be measured using an electron beam, as previously demonstrated in experiments on T-15, TEXTOR, KSTAR, and SST-1. This paper describes the parameters of the experiment and presents the main results obtained from the MEPhIST-0 tokamak. Two experimental techniques for measuring the vertical magnetic field are discussed: one with a change in the current direction in the toroidal solenoid and one without. The ratio of the stray vertical field to the toroidal field was found to be approximately 0.5%. The conducted experiments highlight the necessity of compensating for the stray vertical field using additional poloidal coils.

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Section: Techniques Of Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%