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Abstract

The influence on the resistive tearing mode of a weak normal component of the magnetic field B-n in a sheet pinch is examined. The dispersion relation in the high conductivity limit is derived in closed analytical form and it is shown that the normal magnetic field exerts a stabilizing influence. For values of B-n scaling like eta**2/5, where eta is the resistivity, the results obtained relate to recent numerical calculations of Nishikawa and Sakai for finite B-n. In the very weak ordering with B-n scaling like eta$u4/5, the previous analytical result of Janicke is recovered.

Additional information

Authors: PARIS R B CEA, CENTRE D'ETUDES NUCLEAIRES DE CADARACHE, ST. PAUL-LES-DURANCE (FRANCE), CEA, CENTRE D'ETUDES NUCLEAIRES DE CADARACHE, ST. PAUL-LES-DURANCE (FRANCE)
Bibliographic Reference: WRITE TO CEA, DEPARTEMENT DE RECHERCHES SUR LA FUSION CONTROLEE, MENTIONING REPORT EUR-CEA-FC-1285, 1985
Availability: Can be ordered online
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