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| dc.creator |
Qingwei Yang |
|
| dc.creator |
Yan Longwen |
|
| dc.creator |
Qian Jun |
|
| dc.date |
2002 |
|
| dc.date.accessioned |
2013-05-30T01:34:01Z |
|
| dc.date.available |
2013-05-30T01:34:01Z |
|
| dc.date.issued |
2013-05-30 |
|
| dc.identifier |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000100027 |
|
| dc.identifier |
http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2002&volume=32&issue=1&spage=160 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/jspui/handle/123456789/3358 |
|
| dc.description |
Locked mode instability in the HL-1M tokamak has been investigated in this paper. In the HL-1M tokamak the mode lock instability often appears in with low density discharges (<img src="http:/img/fbpe/bjp/v32n1/27eq01.gif" align="absMiddle"> < 1 × 10(19) m-3). The precursor perturbations on both soft-X rays and Mirnov signals simultaneously increase before mode locking. Their frequencies are the same and gradually decease, which indicate that the perturbation is global. Their existence time-scale is about 10ms. The plasma will suddenly stop rotating when the fluctuation amplitude or frequency reaches a threshold. Mode lock instability can often cause major disruptions. The rotation frequency is decreased to about 3kHz before mode locking in the HL-1M tokamak, which is consistent with the theoretical model. |
|
| dc.publisher |
Sociedade Brasileira de Física |
|
| dc.source |
Brazilian Journal of Physics |
|
| dc.title |
Studies of mode lock instability in the HL-1M tokamak |
|
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