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Abstract

A central part (tile 4) of the carbon limiter of JET from octant 4, which was used in the period from July 1983 to December 1983 was analyzed with regard to its surface composition and topography by PIXE, RBS, SEM and EIXE. For reference, a graphite sample from a limiter tile which had not been incorporated in JET and a section of a graphite piece cut from the limiter were also investigated. The elements found most frequently on the rough (+- 10 mum) graphite surface were Mo (10**-20 + 10**21 atoms/m**2), Ni (10**20 + 10**21 atoms/m**2), Cr (10**19 + 10**20 atoms/m**2), Fe (10**19 + 10**20 atoms/m**2), Ti (10**18 + 10**19 atoms/m**2), Ca (10**19 atoms/m**2) and K (10**19 atoms/m**2). Mo, Ni and Cr were also found on tile 1 of the same limiter analyzed by Culham Laboratories by means of RBS and other methods.

Additional information

Authors: EHRENBERG J, MAX-PLANCK INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY);BEHRISCH R MAX-PLANCK INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY), MAX-PLANCK INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY)
Bibliographic Reference: WRITE TO MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, 8046 GARCHING BEI MUENCHEN (GERMANY), MENTIONING REPORT IPP 9/47, 1984
Record Number: 1989123024900 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en