Sputtering erosion of fusion reactor cavity walls

Technical Report · Wed Dec 01 00:00:00 EST 1976

DOI:https://doi.org/10.2172/7209521· OSTI ID:7209521

Bohachevsky, I O; Hafer, J F

Devised are functions that describe the empirically and theoretically determined behavior of sputtering coefficients. These functions are used in a computer program that calculates erosion rates and total erosion of surfaces bombarded by ion beams of specified intensity. Presented here are analytic expressions that describe the effects of ion energy and angle of incidence, computational procedures, and results. Results, computed for alpha, triton, deuteron, and heavy-metal ions bombarding niobium, carbon, and iron surfaces indicate that for pellets with heavy metal shell structures sputtering erosion should be carefully considered and properly designed for.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7209521
• Report Number(s): LA-6633-MS; TRN: 78-000818
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
36 MATERIALS SCIENCE
CARBON
SPUTTERING
IRON
NIOBIUM
THERMONUCLEAR REACTOR WALLS
ALPHA PARTICLES
COMPUTER CALCULATIONS
DEUTERONS
ION BEAMS
TRITONS
BEAMS
CHARGED PARTICLES
ELEMENTS
METALS
NONMETALS
REFRACTORY METALS
TRANSITION ELEMENTS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing
360106 - Metals & Alloys- Radiation Effects