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Asymmetric vertical disruption events are fortunately rare, but can induce large lateral forces which can cause significant mechanical damage to tokamaks. In this paper we present a simple model which allows the lateral forces generated during such a disruption to be estimated as a function of relatively easily obtained electromagnetic parameters: the asymmetries in the vertical current moment. This model is validated by using it to predict the displacement history of the JET tokamak caused by a number of major AVDEs. It is shown that the predicted forces and displacement agree well with quantities measured during these disruptions.

Additional information

Authors: NOLL P, JET Joint Undertaking, Abingdon (GB)
Bibliographic Reference: Report: JET-P(99)49, 17pp.
Availability: Available from the Librarian, JET Joint Undertaking, Abingdon (GB)
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