Modelling Magnetic Forces during Asymmetric Vertical Displacement events in JET
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.
Bibliographic Reference: Report: JET-P(99)49, 17pp.
Availability: Available from the Librarian, JET Joint Undertaking, Abingdon (GB)
Record Number: 200011784 / Last updated on: 2000-02-12
Original language: en
Available languages: en