Engineering of beam direct conversion for a 120-kV, 1-MW ion beam

Conference · Mon Oct 03 04:00:00 EDT 1977

OSTI ID:5293899

Barr, W L; Doggett, J N; Hamilton, G W; Kinney, J D; Moir, R W

Practical systems for beam direct conversion are required to recover the energy from ion beams at high efficiency and at very high beam power densities in the environment of a high-power, neutral-injection system. Such an experiment is now in progress using a 120-kV beam with a maximum total current of 20 A. After neutralization, the H/sup +/ component to be recovered will have a power of approximately 1 MW. A system testing these concepts has been designed and tested at 15 kV, 2 kW in preparation for the full-power tests. The engineering problems involved in the full-power tests affect electron suppression, gas pumping, voltage holding, diagnostics, and measurement conditions. Planning for future experiments at higher power includes the use of cryopumping and electron suppression by a magnetic field rather than by an electrostatic field. Beam direct conversion for large fusion experiments and reactors will save millions of dollars in the cost of power supplies and electricity and will dispose of the charged beam under conditions that may not be possible by other techniques.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5293899
• Report Number(s): UCRL-79718; CONF-771029-47
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700207* -- Fusion Power Plant Technology-- Power Conversion Systems
BEAM INJECTION
BEAMS
COST
DIRECT ENERGY CONVERTERS
ENGINEERING
ION BEAMS
NEUTRAL ATOM BEAM INJECTION
NEUTRAL BEAM SOURCES
NUCLEON BEAMS
PARTICLE BEAMS
PROTON BEAMS
THERMONUCLEAR REACTORS