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U.S. Department of Energy
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Ion implantation applied to fusion research

Conference ·
OSTI ID:6130668
Ion implantation and microanalysis have been used to investigate plasma-surface interactions relevant to fusion applications. Previous results for pure metals are reviewed and current results are presented for TiB/sub 2/ and B/sub 4/C coatings for tokamak surfaces. Enhanced trapping of implanted, low-energy hydrogen has been shown to occur at room temperature in W, Au, Pd, Mo, Nb, TiB/sub 2/, and B/sub 4/C for He or other ion predamage. Hydrogen depth profiles obtained using /sup 1/H(/sup 19/F, ..cap alpha gamma..)/sup 16/O resonant nuclear reaction show that the H decorates the He damage profiles at traps whose concentration is proportional to the amount of He-induced damage.
Research Organization:
Sandia Labs., Albuquerque, NM (USA)
DOE Contract Number:
EY-76-C-04-0789
OSTI ID:
6130668
Report Number(s):
SAND-79-1368c; CONF-790753-1
Country of Publication:
United States
Language:
English