Chemical effects on secondary photon and ion emission of ion bombarded beryllium, carbon, and boron carbide surfaces

Conference · Sun Jan 01 00:00:00 EST 1978

OSTI ID:6675789

Wright, R. B.; Liu, M. B.; Gruen, D. M.

Beryllium metal has been proposed as a low-Z material for a first-wall coating or liner in tokamak reactor vacuum vessel applications. In this connection, the effects of ion bombardment on the impurity release and erosion properties of beryllium need to be ascertained. The present work has focussed on the effects of oxygen and nitrogen bombardment on the secondary photon and secondary ion emission properties of beryllium. The most significant finding is that both the secondary photon and ion emission are strongly enhanced as a result of oxygen and nitrogen bombardment. This finding is of potential importance to impurity control and transport problems associated with fusion reactor applications of beryllium.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6675789
• Report Number(s): CONF-780431-14; TRN: 78-017900
• Resource Relation: Conference: 3. conference on plasma interaction in controlled fusion devices, Abingdon, Oxfordshire, UK, 3 Apr 1978
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
36 MATERIALS SCIENCE
BERYLLIUM
SECONDARY EMISSION
BORON CARBIDES
COATINGS
CARBON
CHEMICAL REACTIONS
FIRST WALL
IMPURITIES
ION EMISSION
LINERS
NITROGEN IONS
OXYGEN IONS
PHOTON EMISSION
TOKAMAK TYPE REACTORS
ALKALINE EARTH METALS
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHARGED PARTICLES
ELEMENTS
EMISSION
IONS
METALS
NONMETALS
THERMONUCLEAR REACTOR WALLS
THERMONUCLEAR REACTORS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing
360106 - Metals & Alloys- Radiation Effects