Ion Microanalysis and Implantation Applied to Fusion Surface Research
- 1 February 1979
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 26 (1) , 1272-1276
- https://doi.org/10.1109/tns.1979.4330367
Abstract
Ion microanalysis and implantation have been used to investigate and analyze plasma-surface interactions relevant to fusion plasma materials. Previous results for pure metals are reviewed and new results are presented for TiB2 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, and TiB2 for He or other ion predamage. Hydrogen depth profiles obtained using 1H(19F,Αγ)16O resonant nuclear reaction show that the H decorates the He damage profiles at traps whose concentration is proportional to the He-induced damage. For room temperature implantation in TiB2, H is trapped at the end of range, and isochronal annealing indicates that the H is lost by release from traps followed by rapid diffusion. For He predamaged samples, annealing at 400°C causes the H to be retrapped in the region of the He-induced damage at traps whose cross section is ≈ 1.8 × 10-18cm2/trap.Keywords
This publication has 11 references indexed in Scilit:
- Trapping of hydrogen isotopes in molybdenum and niobium predamaged by ion implantationJournal of Applied Physics, 1977
- Enhanced hydrogen trapping due to He ion damageJournal of Nuclear Materials, 1976
- Range profiles of 6–16-keV hydrogen ions implanted in metal oxidesJournal of Applied Physics, 1976
- Profile studies of hydrogen trapping in metals due to ion damageApplied Physics Letters, 1976
- Hydrogen Diffusion in MetalsPublished by Elsevier ,1975
- Ion beam studies of H and He in metalsJournal of Nuclear Materials, 1974
- Radiation Damage and Gas Diffusion in Molybdenum Under Deuteron BombardmentPublished by Springer Nature ,1974
- A technique for measuring hydrogen concentration versus depth in solid samplesNuclear Instruments and Methods, 1973
- Range and stopping-power tables for heavy ionsAtomic Data and Nuclear Data Tables, 1970
- Relation of neutron to ion damage annealing in Si and GeRadiation Effects, 1969