Results of Joint Experiments and other IAEA activities on research using small tokamaks

N. Kirneva V. Vershkov M. Sokolov C. Silva D. Valcrcel R. Gonzales A. Fonseca B. Kuteev L. Petrov M. Kolokoltsov J. Herrera M. Nieto-Perez A. Czarnecka A. Talebitaher A. Melnikov P. Khorshid V. Soldatov C. R. Gutierrez Tapia R. Dejarnac P. Balan M. Hron H. Fernandes I. Ďuran D. Dunai J. Stockel J. Brotankova L. A. Berni E. Del Bosco J. Sentkerestiova M. Gryaznevich G. Van Oost E. Dufkova P. Peleman A. Sharnin V. Pavlov J. Ferreira R. Gomes M. Berta V. Weinzettl A. Malaquias B. Tl J. Zajac G. Mank F. J.R. Simes I. El Chama Neto H. Figueiredo N. Dreval D. Nurov A. W. Kraemer-Flecken B. Brotas P. Carvalho S. Zoletnik Y. Kuznetsov L. Ruchko H. Hegazy A. Ovsyannikov R. Coelho A. Duarte J. Santos H. Hegazy G. M. Vorobjev E. Sukhov A. Singh G. Kirnev V. Budaev J. Figueiredo G. Ramos L. I. Krupnik I. Nedzelski A. Neto

Publication Name: Nuclear Fusion

Publication Date: 2009-09-21

Volume: 49

Issue: 10

Page Range: Unknown

Description:

This paper presents an overview of the results obtained during the Joint Experiments organized in the framework of the IAEA Coordinated Research Project on 'Joint Research Using Small Tokamaks' that have been carried out on the tokamaks CASTOR at IPP Prague, Czech Republic (2005), T-10 at RRC 'Kurchatov Institute', Moscow, Russia (2006), and the most recent one at ISTTOK at IST, Lisbon, Portugal, in 2007. Experimental programmes were aimed at diagnosing and characterizing the core and the edge plasma turbulence in a tokamak in order to investigate correlations between the occurrence of transport barriers, improved confinement, electric fields and electrostatic turbulence using advanced diagnostics with high spatial and temporal resolution. On CASTOR and ISTTOK, electric fields were generated by biasing an electrode inserted into the edge plasma and an improvement of the global particle confinement induced by the electrode positive biasing has been observed. Geodesic acoustic modes were studied using heavy ion beam diagnostics on T-10 and ISTTOK and correlation reflectometry on T-10. ISTTOK is equipped with a gallium jet injector and the technical feasibility of gallium jets interacting with plasmas has been investigated in pulsed and ac operation. The first Joint Experiments have clearly demonstrated that small tokamaks are suitable for broad international cooperation to conduct dedicated joint research programmes. Other activities within the IAEA Coordinated Research Project on Joint Research Using Small Tokamaks are also overviewed. © 2009 IAEA, Vienna.

Open Access: Yes

DOI: 10.1088/0029-5515/49/10/104026

Authors - 70

N. Kirneva

6602949210

V. Vershkov

6603915479

M. Sokolov

7102397538

C. Silva

7201387433

D. Valcrcel

35075308200

R. Gonzales

35074000200

A. Fonseca

22034193800

B. Kuteev

7003377972

L. Petrov

57194738785

M. Kolokoltsov

35074256300

J. Herrera

7201650139

M. Nieto-Perez

9740253100

A. Czarnecka

57221705108

A. Talebitaher

24773956100

A. Melnikov

7005189241

P. Khorshid

6602404792

V. Soldatov

35075007800

C. R. Gutierrez Tapia

6602676489

R. Dejarnac

16232731600

P. Balan

6701731726

M. Hron

6701340372

H. Fernandes

7005418232

I. Ďuran

35276958000

D. Dunai

33067488800

J. Stockel

8710785000

J. Brotankova

11241930200

L. A. Berni

6603905934

E. Del Bosco

7003769260

J. Sentkerestiova

25634641700

M. Gryaznevich

7003560258

G. Van Oost

7006718297

E. Dufkova

11241737700

P. Peleman

8354703000

A. Sharnin

6505748678

V. Pavlov

35074804900

J. Ferreira

57188819415

R. Gomes

7102430300

M. Berta

14051575000

V. Weinzettl

8710784800

A. Malaquias

6603940109

B. Tl

35075111800

J. Zajac

8518245000

G. Mank

7003402293

F. J.R. Simes

34880855500

I. El Chama Neto

35073853800

H. Figueiredo

7004023864

N. Dreval

58646839200

D. Nurov

35074660900

A. W. Kraemer-Flecken

6701593963

B. Brotas

35073547100

P. Carvalho

57616748200

S. Zoletnik

8585952300

Y. Kuznetsov

7201592276

L. Ruchko

6602776810

H. Hegazy

60074272600

A. Ovsyannikov

7004224011

R. Coelho

7102493606

A. Duarte

22233257800

J. Santos

59437197300

H. Hegazy

60074272700

G. M. Vorobjev

24328379000

E. Sukhov

35075137500

A. Singh

57212846052

G. Kirnev

6602888109

V. Budaev

7004147794

J. Figueiredo

55565993800

G. Ramos

23470832800

L. I. Krupnik

7003693333

I. Nedzelski

35074632000

A. Neto

22234639300