U.S. Heavy Ion Beam Science towards inertial fusion energy
Description
Significant experimental and theoretical progress in the U.S heavy-ion fusion (HIF) program is reported in modeling and measurements of intense space-charge-dominated heavy ion and electron beams. Measurements of the transport of a well-matched and aligned high current (0.2A) 1.0 MeV potassium ion beam through 10 electric quadrupoles, with a fill factor of 60%, shows no emittance growth within experimental measurement uncertainty, as expected from the simulations. Another experiment shows that passing a beam through an aperture can reduce emittance to near the theoretical limits, and that plasma neutralization of the beam's space-charge can greatly reduce the focal spot radius. Measurements … continued below
Physical Description
13 pages
Creation Information
Logan, B. G.; Baca, D.; Barnard, J. J.; Bieniosek, F. M.; Burkhart, C.; Celata, C. M. et al. October 1, 2002.
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- Logan, B. G.
- Baca, D.
- Barnard, J. J.
- Bieniosek, F. M.
- Burkhart, C.
- Celata, C. M.
- Chacon-Golcher, E.
- Cohen, R. H.
- Davidson, R. C.
- P., Efthimion
- Faltens, A.
- Friedman, A.
- Grisham, L.
- Grote, D. P.
- Haber, I.
- Henestroza, E.
- Kaganovich, I.
- Kishek, R. A.
- Kwan, J. W.
- Lee, E. P.
- Lee, W. W.
- Leitner, M.
- Lund, S. M.
- Meier, W. R.
- Molvik, A. W.
- O'Shea, P. G.
- Olson, C.
- Olson, R. E.
- Prost, L. R.
- Qin, H.
- Reiser, M.
- Rose, D.
- Sabbi, G.
- Seidl, P. A.
- Sharp, W. M.
- Shuman, D. B.
- Vay, J. L.
- Waldron, W. L.
- Welch, D.
- Westenskow, G. A.
- Yu, S. S.
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Lawrence Berkeley National Laboratory
Publisher Info: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States)Place of Publication: Berkeley, California
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Description
Significant experimental and theoretical progress in the U.S heavy-ion fusion (HIF) program is reported in modeling and measurements of intense space-charge-dominated heavy ion and electron beams. Measurements of the transport of a well-matched and aligned high current (0.2A) 1.0 MeV potassium ion beam through 10 electric quadrupoles, with a fill factor of 60%, shows no emittance growth within experimental measurement uncertainty, as expected from the simulations. Another experiment shows that passing a beam through an aperture can reduce emittance to near the theoretical limits, and that plasma neutralization of the beam's space-charge can greatly reduce the focal spot radius. Measurements of intense beamlet current density, emittance, charge-state purity, and energy spread from a new, high-brightness, Argon plasma source for HIF experiments are described. New theory and simulations of neutralization of intense beam space charge with plasma in various focusing chamber configurations indicate that near-emittance-limited beam focal spot sizes can be obtained even with beam perveance an order of magnitude higher than in earlier HIF focusing experiments.
Physical Description
13 pages
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OSTI as DE00815501
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- 19th IAEA Fusion Energy Conference, Lyon (FR), 10/14/2002--10/19/2002
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- Report No.: LBNL--52443
- Report No.: HIFAN 1237
- Grant Number: AC03-76SF00098
- Office of Scientific & Technical Information Report Number: 815501
- Archival Resource Key: ark:/67531/metadc740230
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- October 1, 2002
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- Oct. 18, 2015, 6:40 p.m.
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Logan, B. G.; Baca, D.; Barnard, J. J.; Bieniosek, F. M.; Burkhart, C.; Celata, C. M. et al. U.S. Heavy Ion Beam Science towards inertial fusion energy, article, October 1, 2002; Berkeley, California. (https://digital.library.unt.edu/ark:/67531/metadc740230/: accessed April 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.