Radial profile measurements of plasma pressure-like fluctuations with the heavy ion beam diagnostic on the tokamak ISTTOK

被引：7

作者：

Henriques, R. B. ^{[1
]}

Malaquias, A. ^{[1
]}

Nedzelskiy, I. S. ^{[1
]}

Silva, C. ^{[1
]}

Coelho, R. ^{[1
]}

Figueiredo, H. ^{[1
]}

Fernandes, H. ^{[1
]}

机构：

[1] Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, P-1049001 Lisbon, Portugal

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2014年 / 85卷 / 11期

关键词：

D O I：

10.1063/1.4891045

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Heavy Ion Beam Diagnostic (HIBD) on the tokamak ISTTOK (Instituto Superior Tecnico TOKamak) has been modified, in terms of signal conditioning, to measure the local fluctuations of the n(e)sigma(1,2)(T-e) product (plasma density times the effective ionization cross-section) along the tokamak minor diameter, in 12 sample volumes in the range of - 0.7a < r < 0.7a, with a maximum delay time of 1 mu s. The corresponding signals show high correlation with the magnetic Mirnov coils in the characteristic MHD frequency range of ISTTOK plasmas and enable the identification of tearing modes. This paper describes the HIBD signal conditioning system and presents a preliminary analysis of the radial profile measurements of local n(e)sigma(1,2)(T-e) fluctuations. (C) 2014 AIP Publishing LLC.

引用

页数：3

共 50 条

[1] 90° cylindrical analyzer for the plasma potential fluctuations measurements by heavy ion beam diagnostic on the tokamak ISTTOK
Nedzelskiy, I. S.
Malaquias, A.
Sharma, R.
Henriques, R.
FUSION ENGINEERING AND DESIGN, 2017, 123 : 897 - 900
[2] Multichannel time-of-flight technique for plasma potential profile measurements by heavy ion beam diagnostic on the tokamak ISTTOK
Nedzelskiy, IS
Malaquias, AJ
Tashchev, YI
Silva, C
Figueiredo, H
Fernandes, H
Varandas, CAF
REVIEW OF SCIENTIFIC INSTRUMENTS, 2006, 77 (03):
[3] THE HEAVY-ION BEAM DIAGNOSTIC FOR THE TOKAMAK ISTTOK
CABRAL, JAC
MALAQUIAS, A
PRAXEDES, A
VANTOLEDO, W
VARANDAS, CAF
IEEE TRANSACTIONS ON PLASMA SCIENCE, 1994, 22 (04) : 350 - 358
[4] Development of a multichannel time-of-flight technique for plasma potential profile measurements by heavy ion beam diagnostic on the tokamak ISTTOK
Nedzelskiy, I. S.
Malaquias, A.
Tashchev, Yu. I.
Silva, C.
Figueiredo, H.
Goncalves, B.
Fernandes, H.
Varandas, C. A. F.
PLASMA AND FUSION SCIENCE, 2008, 996 : 185 - 191
[5] Plasma density fluctuations measurements by heavy ion beam probe with a multiple cell array detector on the tokamak ISTTOK
I. S. Nedzelskiy
C. Silva
D. Alves
R. Coelho
H. Fernandes
Plasma Physics Reports, 2009, 35 : 834 - 840
[6] Plasma density fluctuations measurements by heavy ion beam probe with a multiple cell array detector on the tokamak ISTTOK
Nedzelskiy, I. S.
Silva, C.
Alves, D.
Coelho, R.
Fernandes, H.
PLASMA PHYSICS REPORTS, 2009, 35 (10) : 834 - 840
[7] Observation of plasma density fluctuations by a heavy ion beam probe diagnostic with multiple cell array detector on the tokamak ISTTOK
Nedzelskiy, I. S.
Coelho, R.
Alves, D.
Silva, C.
Fernandes, H.
REVIEW OF SCIENTIFIC INSTRUMENTS, 2008, 79 (10):
[8] Plasma fluctuations and Reynolds stress measurements on the tokamak ISTTOK
Silva, C
Fernandes, H
Figueiredo, H
Varandas, CAF
Cabral, JAC
Hidalgo, C
Pedrosa, MA
Sánchez, E
CZECHOSLOVAK JOURNAL OF PHYSICS, 1999, 49 : 29 - 34
[9] Evolution of the tokamak ISTTOK plasma density and electron temperature radial profiles determined by heavy ion beam probing
Rev Sci Instrum, 1 pt 2 (947):
[10] Evolution of the tokamak ISTTOK plasma density and electron temperature radial profiles determined by heavy ion beam probing
Malaquias, A.
Nedzelskii, I.S.
Varandas, C.A.F.
Cabral, J.A.C.
Review of Scientific Instruments, 1999, 70 (1 II): : 947 - 950

← 1 2 3 4 5 →