Sputtering-erosion estimates for NBETF beam dumps

Conference · Thu Oct 01 00:00:00 EDT 1981

OSTI ID:5666761

Wekhof, A; Berkner, K H

To stop multi-second high-energy hydrogen or deuterium beams in neutral injection systems, thin-skin actively cooled dumps made of Cu, Mo, or W are contemplated. For the Neutral Beam Engineering Test Facility (NBETF), the design goal for the life of the beam dumps is 25,000 thirty-second pulses, with a fluence of 10/sup 23/ deuterons/cm/sup 2/. From a review of the literature on sputtering and blistering, we estimate that an erosion allowance of 0.13 cm for Cu, 0.02 cm for Mo, and 0.004 cm for W has to be incorporated in the beam-dump design.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5666761
• Report Number(s): LBL-13515; CONF-811040-133; ON: DE82004558; TRN: 82-005798
• Resource Relation: Conference: 9. symposium on engineering problems of fusion research, Chicago, IL, USA, 26 Oct 1981
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM DUMPS
EROSION
SPUTTERING
NEUTRAL BEAM SOURCES
COPPER
DEUTERIUM IONS
HYDROGEN IONS
MOLYBDENUM
TUNGSTEN
CHARGED PARTICLES
ELEMENTS
IONS
METALS
REFRACTORY METALS
TRANSITION ELEMENTS
700205* - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems