Electron energy distribution function in the divertor region of the COMPASS tokamak

被引：0

作者：

Dimitrova, M. ^{[1
,2
]}

Hasan, E. ^{[2
,3
]}

Ivanova, P. ^{[2
]}

Vasileva, E. ^{[2
]}

Popov, Tsv ^{[3
]}

Dejarnac, R. ^{[1
]}

Stockel, J. ^{[1
]}

Panek, R. ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Plasma Phys, 3 Za Slovankou, Prague 18200 8, Czech Republic

[2] Bulgarian Acad Sci, Acad E Djakov Inst Elect, 72 Tsarigradsko Chaussee, Sofia 1784, Bulgaria

[3] St Kl Ohridski Univ Sofia, Fac Phys, 5 J Bourchier Blvd, Sofia 1164, Bulgaria

来源：

19TH INTERNATIONAL SUMMER SCHOOL ON VACUUM, ELECTRON AND ION TECHNOLOGIES (VEIT2015) | 2016年 / 700卷

关键词：

PLASMA;

D O I：

10.1088/1742-6596/700/1/012009

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The plasma parameters during an L-mode hydrogen discharge in the COMPASS tokamak with a toroidal magnetic field B-T = 1.15 T, line-averaged electron density n(e) = 6 x 10(19) m(-3) and a plasma current variation from 209 kA to 100 kA were studied in the divertor region. The electron energy distribution function for 209 kA at the high-field side and the private region is Maxwellian with a temperature in the range of 5 - 9 eV, while around the outer strike point and the low-field side it is bi-Maxwellian with a low-energy electron group (4 - 5 eV) and higher energy electrons (10 - 20 eV). As the plasma current decreases, the appearance of the bi-Maxwellian EEDF is shifted towards the low-field side; at plasma current of 100 kA, the EEDF is Maxwellian in the whole divertor region.

引用

页数：5

共 8 条

[1] Plasma Parameters in the COMPASS Divertor During Ohmic Plasmas [J].

Dimitrova, M. ;

Dejarnac, R. ;

Popov, Tsv K. ;

Ivanova, P. ;

Vasileva, E. ;

Kovacic, J. ;

Stoeckel, J. ;

Havlicek, J. ;

Janky, F. ;

Panek, R. .

CONTRIBUTIONS TO PLASMA PHYSICS, 2014, 54 (03) :255-260

[2] Probe measurements of electron-energy distributions in plasmas: what can we measure and how can we achieve reliable results? [J].

Godyak, V. A. ;

Demidov, V. I. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2011, 44 (23)

[3]

Ivanova P, 2016, J PHYS C SERIES

[4] Electronic system for Langmuir probe measurements [J].

Mitov, M. ;

Bankova, A. ;

Dimitrova, M. ;

Ivanova, P. ;

Tutulkov, K. ;

Djermanova, N. ;

Dejarnac, R. ;

Stoeckel, J. ;

Popov, Tsv K. .

17TH INTERNATIONAL SUMMER SCHOOL ON VACUUM, ELECTRON, AND ION TECHNOLOGIES (VEIT 2011), 2012, 356

[5] Status of the COMPASS tokamak and characterization of the first H-mode [J].

Panek, R. ;

Adamek, J. ;

Aftanas, M. ;

Bilkova, P. ;

Boehm, P. ;

Brochard, F. ;

Cahyna, P. ;

Cavalier, J. ;

Dejarnac, R. ;

Dimitrova, M. ;

Grover, O. ;

Harrison, J. ;

Hacek, P. ;

Havlicek, J. ;

Havranek, A. ;

Horacek, J. ;

Hron, M. ;

Imrisek, M. ;

Janky, F. ;

Kirk, A. ;

Komm, M. ;

Kovarik, K. ;

Krbec, J. ;

Kripner, L. ;

Markovic, T. ;

Mitosinkova, K. ;

Mlynar, J. ;

Naydenkova, D. ;

Peterka, M. ;

Seidl, J. ;

Stoeckel, J. ;

Stefanikova, E. ;

Tomes, M. ;

Urban, J. ;

Vondracek, P. ;

Varavin, M. ;

Varju, J. ;

Weinzettl, V. ;

Zajac, J. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2016, 58 (01)

[6] Bi-Maxwellian electron energy distribution function in the vicinity of the last closed flux surface in fusion plasma [J].

Popov, T. S. V. K. ;

Dimitrova, M. ;

Pedrosa, M. A. ;

Lopez-Bruna, D. ;

Horacek, J. ;

Kovacic, J. ;

Dejarnac, R. ;

Stockel, J. ;

Aftanas, M. ;

Bohm, P. ;

Bilkova, P. ;

Hidalgo, C. ;

Panek, R. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2015, 57 (11)

[7] Langmuir Probe Evaluation of the Plasma Potential in Tokamak Edge Plasma for Non-Maxwellian EEDF [J].

Popov, Tsv K. ;

Dimitrova, M. ;

Ivanova, P. ;

Hasan, E. ;

Horacek, J. ;

Dejarnac, R. ;

Stoeckel, J. ;

Weinzettl, V. ;

Kovacic, J. .

CONTRIBUTIONS TO PLASMA PHYSICS, 2014, 54 (03) :267-272

[8] Electron energy distribution function, plasma potential and electron density measured by Langmuir probe in tokamak edge plasma [J].

Popov, Tsv K. ;

Ivanova, P. ;

Stoeckel, J. ;

Dejarnac, R. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2009, 51 (06)

← 1 →