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Abstract

The main poloidal limiter used in FT during 1983 consists of 38 mushroom-shaped pieces tightened onto a supporting structure. All items are made of stainless steel (AISI 316). Measurement of weight losses and also observation of damage have been carried out. An e-folding length lambda-E < 1 cm was estimated. A global energy balance gives a maximum total power on the limiter of about 300 kW. Weight loss measurements on the fraction of the limiter involved in disruption reveal that only a fraction of the thermal energy of the plasma is absorbed by the material suggesting the presence of some self-protecting mechanisms around the limiter.

Additional information

Authors: FERRO C, ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);MADDALUNO G ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY), ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY)
Bibliographic Reference: 6TH INTERNATIONAL CONFERENCE ON PLASMA SURFACE INTERACTIONS IN CONTROLLED FUSION DEVICES, NAGOYA (JAPAN), MAY 14-18, 1984 PP. 13-25 WRITE TO ENEA - CENTRO RICERCHE ENERGIA FRASCATI, SERVIZIO STUDI E DOCUMENTAZIONE, C.P. 65 - 00044 FRASCATI, ROMA (ITALY) M
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