IDENTIFICATION OF MAGNETIC HELICAL PERTURBATION IN A TOKAMAK
A complete magnetic data analysis in tokamaks should comprehend a reconstruction of the axisymmetric magnetic flux structure and information on location, width and rotation of relevant island structures produced by resistive tearing modes. A computerized procedure is desirable, especially in conditions of non-circular plasma and vessel cross sections. Outside an island centered around the q = m/n surface the true nonlinear solution of the tearing mode equation is well approximated by the linear eigenfunction characterized by the logarithmic slope jump "TRIANGLE"'(O); also the quasilinear saturated width of the island is usually calculated by exploring the linear solution around the resonance until "TRIANGLE"'(w) = O.
Bibliographic Reference: 12TH EUROPEAN CONFERENCE ON CONTROLLED FUSION AND PLASMA PHYSICS, BUDAPEST (HUNGARY), SEPT. 2-6, 1985 PP. 15-22 WRITE TO SERVIZIO STUDI E DOCUMENTAZIONE - ENEA, CENTRO RICERCHE ENERGIA FRASCATI, C.P. 65 - 00044 FRASCATI, ROMA (ITALY), MENTIONING REPORT RT
Record Number: 1989125009000 / Last updated on: 1987-01-01
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