Community Research and Development Information Service - CORDIS

Abstract

The FTU vacuum wall is completely covered by thermal shields. In this work are described and discussed the wall conditioning techniques performed on 1:1 scale toroidal sector to assure the ultimate pressure foreseen (< 2.6 . 10-6- Pa). An ultimate pressure of 6.2.10-7- Pa has been obtained after baking at 190 degrees C. An improvement factor 8 in the ultimate pressure has been obtained by using glow discharge in H-2 for five hours at 100 degrees C. Influence of the geometry of the vacuum vessel has been discussed.

Additional information

Authors: APICELLA M L, ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);DACLON F, ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);ALESSANDRINI C ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY), ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY)
Bibliographic Reference: 14TH SOFT CONFERENCE, AVIGNON (FRANCE), SEPT. 8-12, 1986 VOL. 1, PP. 521-526 1895 P., 1986, VOL. 1 AND VOL. 2, ISBN 0 08 034935 8 WRITE TO PERGAMON PRESS, HEADINGTON HILL HALL, OXFORD, OX3 0BW (UK), PRICE: UKL 220 (FOR BOTH VOLS.)
Record Number: 1989126050401 / Last updated on: 1989-01-01
Category: PUBLICATION
Available languages: en