Applications of a Kaufman ion source to low energy ion erosion studies
The erosion of materials by low energy ions is of concern in fusion reactors since high Z impurities in the plasma cause radiation cooling. Ion bombardment of the fusion reactor chamber walls arises from ions of fuel (D, T) material, gaseous impurities (O, C), and impurities from eroded components (Fe, Co, Ni, C, Mo, etc.) being accelerated across the wall sheath potential (0.1 to 1 keV). A Kaufman type ion source has been characterized for use with hydrogen, and subsequently used to determine the relative erosion rates of bulk Mo, C, Cu, coating of TiB/sub 2/, B/sub 4/C, Be, VBe/sub 12/ and other materials. Ions of hydrogen (Z=1), argon (Z=18), and xenon (Z=54) at acceleration potentials of 250, 500, and 1000 V have been used to determine erosion yields.
- Research Organization:
- Sandia Laboratories, Albuquerque, New Mexico 87185
- DOE Contract Number:
- DE-AC04-76-DP00789
- OSTI ID:
- 5481605
- Journal Information:
- J. Vac. Sci. Technol.; (United States), Vol. 16:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ARGON IONS
COLLISIONS
BERYLLIUM
ION COLLISIONS
BERYLLIUM BASE ALLOYS
BORON CARBIDES
CARBON
COPPER
HYDROGEN IONS
EROSION
MOLYBDENUM
THERMONUCLEAR REACTOR MATERIALS
TITANIUM BORIDES
VANADIUM ALLOYS
XENON IONS
FARADAY CUPS
HIGH VACUUM
ION SOURCES
THERMONUCLEAR REACTORS
ALKALINE EARTH METALS
ALLOYS
BEAM MONITORS
BERYLLIUM ALLOYS
BORIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHARGED PARTICLES
ELEMENTS
IONS
MEASURING INSTRUMENTS
METALS
NONMETALS
REFRACTORY METALS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing
640301 - Atomic
Molecular & Chemical Physics- Beams & their Reactions