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

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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 ... continued below

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Pages: 9

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Barr, W.L.; Doggett, J.N.; Hamilton, G.W.; Kinney, J.D. & Moir, R.W. October 3, 1977.

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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.

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Pages: 9

Notes

Dep. NTIS, PC A02/MF A01.

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  • 7. symposium on fusion research project, Knoxville, TN, USA, 25 Oct 1977

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  • Report No.: UCRL-79718
  • Report No.: CONF-771029-47
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5293899
  • Archival Resource Key: ark:/67531/metadc1066518

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • October 3, 1977

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 20, 2018, 8:05 p.m.

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Barr, W.L.; Doggett, J.N.; Hamilton, G.W.; Kinney, J.D. & Moir, R.W. Engineering of beam direct conversion for a 120-kV, 1-MW ion beam, article, October 3, 1977; United States. (digital.library.unt.edu/ark:/67531/metadc1066518/: accessed April 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.