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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(11) [November 2006] >
| Title: | Analysis of disruptive instabilities in Aditya tokamak discharges |
| Authors: | Chattopadhyay, Asim Kumar
Anand, Arun
Rao, C V S
Joisa, Shankar
team, Aditya |
| Keywords: | Tokamak
MHD instabilities
Tomography |
| Issue Date: | Nov-2006 |
| Publisher: | CSIR |
| IPC Code: | H05H |
| Abstract: | Major disruptions
and sawteeth oscillations (internal disruptions) are routinely observed in
ohmically heated Aditya tokamak discharges and their characteristics have been
investigated with the help of soft X-ray (SXR) tomography along with other
diagnostics. The SXR tomography is carried out with the help of single array of
detectors assuming rigid rotation of the modes to analyse the mode structure of
sawtooth internal disruptions. Coupling of m/n=2/1
and m/n=1/1 modes could be the main
mechanism for the major disruption. Sawteeth periods were measured and compared
with the scaling laws and found to be in good agreement. |
| Page(s): | 826-833 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.44(11) [November 2006]
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