A structural change of perturbed magnetic configurations (such as magnetic islands) during disruption phase in IR-T1 tokamak was studied. The singular value decomposition (SVD) mode analysis and the (m,n) modes identification were presented. We also presented the SVD technique to analyze the tokamak magnetic fluctuations, time evolution of magnetohydrodynamics (MHD) modes, spatial structure of each time vector, and the energy content of each modes. We also considered different scenarios for plasma from steady-state to predisruption, complete disruption, creation of tearing modes, and finally magnetic islands.

References

References
1.
Horton
,
W.
,
1999
, “
Drift Waves and Transport
,”
Rev. Mod. Phys.
,
71
(
3
), p.
735
.
2.
Wesson
,
J. A.
,
Ward
,
D. J.
, and
Rosenbluth
,
M. N.
,
1990
, “
Negative Voltage Spike in Tokamak Disruptions
,”
Nucl. Fusion
,
30
(6), p.
1011
.
3.
Schuller
,
F.
,
1995
, “
Disruptions in Tokamaks
,”
Plasma Phys. Control Fusion
,
37
(11A), p.
A135
.
4.
Salar Elahi
,
A.
, and
Ghoranevis
,
M.
,
2017
, “
A New Perspective on Synchrotron Radiation Applications: Runaway Electrons Studies Using a Hard X-Ray Detection in Tokamaks
,”
J. X-Ray Sci. Technol.
,
25
(1), pp.
15
23
.
5.
Kafi
,
M.
,
Salar Elahi
,
A.
,
Ghoranevis
,
M.
, and
Salem
,
M. K.
,
2016
, “
A Confident Source of Hard X-Ray: Radiation From Tokamak Applicable for the Runaway Electrons Diagnosis
,”
J. Synchrotron Radiat.
,
23
(
5
), pp.
1227
1231
.
6.
Nagidokht
,
A.
, and
Salar Elahi
,
A.
,
2016
, “
A Novel Design of Feedback Control System for Plasma Horizontal Position in IR-T1 Tokamak
,”
Fusion Eng. Des.
,
107
, pp.
82
89
.
7.
Salar Elahi
,
A.
, and
Ghoranevis
,
M.
,
2016
, “
Low Dissipation With Normalized Flux Surfaces in 2-Dimensional Coordinate for IR-T1 Tokamak Using GSE Solution
,”
J. Inorg. Organomet. Polym. Mater.
,
26
(
4
), pp.
829
833
.
8.
Salar Elahi
,
A.
, and
Ghoranevis
,
M.
,
2016
, “
Prevention of Plasma-Surface Interactions by Control of Plasma Equilibrium in Large Aspect Ratio Tokamaks
,”
J. Inorg. Organomet. Polym. Mater.
,
26
(
3
), pp.
675
679
.
9.
Mirmoeini
,
R.
, and
Salar Elahi
,
A.
,
2016
, “
Analysis of Tokamak Plasma Confinement Modes Using the Fast Fourier Transformation
,”
Pramana J. Phys.
,
87
(
5
), p.
81
.
10.
Salar Elahi
,
A.
, and
Ghoranevis
,
M.
,
2016
, “
Tokamak Coils Materials and Toroidal Field Ripples Calculation Using the Comsol Multiphysics
,”
J. Inorg. Organomet. Polym. Mater.
,
26
(
2
), pp.
439
445
.
11.
Salar Elahi
,
A.
, and
Ghoranevis
,
M.
,
2016
, “
Magnetic Studies of Tokamak Plasma Equilibrium Based on Magnetic System Materials and Characteristics
,”
J. Inorg. Organomet. Polym. Mater.
,
26
(
2
), pp.
467
471
.
12.
Nagidokht
,
A.
, and
Salar Elahi
,
A.
,
2016
, “
Feedback System Design for Plasma Horizontal Position Control in IR-T1 Tokamak
,”
J. Fusion Energy
,
35
(
2
), pp.
415
421
.
13.
Nagidokht
,
A.
, and
Salar Elahi
,
A.
,
2016
, “
Magnetic System and Equilibrium Reconstruction for ITER Using the GSE Solution and TEQ Code
,”
J. Inorg. Organomet. Polym. Mater.
,
26
(
1
), pp.
172
177
.
14.
Ghanbari
,
M.
, and
Salar Elahi
,
A.
,
2016
, “
Controlling the Diffusion of Runaway Electrons by Safety Factor Changes in IR-T1 Tokamak
,”
J. Fusion Energy
,
35
(
2
), pp.
180
186
.
15.
Elahi
,
S. H.
, and
Nabavi
,
A.
,
2009
, “
A UWB LNA With Interference Rejection Using Enhanced-Q Active Inductor
,”
IEICE Electron. Express
,
6
(
6
), pp.
335
340
.
16.
Elahi
,
S. H.
, and
Nabavi
,
A.
,
2009
, “
Ultra-Wideband CMOS Low Noise Amplifier With Flat Gain
,”
IEICE Electron. Express
,
6
(
10
), pp.
630
637
.
17.
Mimche
,
S.
,
Ahn
,
D.
,
Kiani
,
M.
,
Elahi
,
S. H.
,
Murray
,
K.
,
Easley
,
K.
, and,
Sokoloff
,
A.
,
2016
, “
Tongue Implant for Assistive Technologies: Test of Migration, Tissue Reactivity and Impact on Tongue Function
,”
Arch. Oral Biol.
,
71
, pp.
1
9
.
You do not currently have access to this content.