A sufficient condition for the existence of a node (i.e. an X-point) in lines of a quasi-static magnetic induction field is proved. The theoretical approach is developed for two-dimensional fields. The problem of obtaining an X-point in a magnetic induction field is encountered in toroidal devices (tokamaks) for controlled thermonuclear fusion experiments. The proposed method is capable of identifying possible X-point locations through the knowledge of field variables which are easy to calculate and/or measure.
Conditions for the existence of an X-point in a magnetic field / Massarini, Antonio; U., Reggiani. - In: COMPEL. - ISSN 0332-1649. - STAMPA. - 17:(1998), pp. 773-780.
Conditions for the existence of an X-point in a magnetic field
MASSARINI, Antonio;
1998
Abstract
A sufficient condition for the existence of a node (i.e. an X-point) in lines of a quasi-static magnetic induction field is proved. The theoretical approach is developed for two-dimensional fields. The problem of obtaining an X-point in a magnetic induction field is encountered in toroidal devices (tokamaks) for controlled thermonuclear fusion experiments. The proposed method is capable of identifying possible X-point locations through the knowledge of field variables which are easy to calculate and/or measure.
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