2011 Particle Accelerator Conference - List of Authors (Jung, J.-Y.)

Paper

Title

Page

Design and Fabrication of the Lithium Beam Ion Injector for NDCX-II

2032

J.H. Takakuwa, J.-Y. Jung, J.T. Kehl, J.W. Kwan, M. Leitner, P.A. Seidl, W.L. Waldron
LBNL, Berkeley, California, USA
A. Friedman, D.P. Grote, W. M. Sharp
LLNL, Livermore, California, USA

Funding: This work is performed under the auspices of the U.S. Department of Energy by LBNL under contract DE-AC02-05CH11231.
A 130 keV injector is developed for the NDCX-II facility. It consists of a 10.9 cm diameter lithium doped alumina-silicate ion source heated to ~1300 °C and 3 electrodes. Other components include a segmented Rogowski coil for current and beam position monitoring, a gate valve, pumping ports, a focusing solenoid, a steering coil and space for inspection and maintenance access. Significant design challenges including managing the 3-4 kW of power dissipation from the source heater, temperature uniformity across the emitter surface, quick access for frequent ion source replacement, mechanical alignment with tight tolerance, and structural stabilization of the cantilevered 27” OD graded HV ceramic column. The injector fabrication is scheduled to complete by May 2011, and assembly and installation is scheduled to complete by the beginning of July.

WEOAS1

Inertial Fusion Driven by Intense Heavy-Ion Beams

1386

W. M. Sharp, J.J. Barnard, R.H. Cohen, M. Dorf, A. Friedman, D.P. Grote, S.M. Lund, L.J. Perkins, M.R. Terry
LLNL, Livermore, California, USA
F.M. Bieniosek, A. Faltens, E. Henestroza, J.-Y. Jung, A.E. Koniges, J.W. Kwan, E. P. Lee, S.M. Lidia, B.G. Logan, P.N. Ni, L.R. Reginato, P.K. Roy, P.A. Seidl, J.H. Takakuwa, J.-L. Vay, W.L. Waldron
LBNL, Berkeley, California, USA
R.C. Davidson, E.P. Gilson, I. Kaganovich, H. Qin, E. Startsev
PPPL, Princeton, New Jersey, USA
I. Haber, R.A. Kishek
UMD, College Park, Maryland, USA

Funding: Work performed under the auspices of the US Department of Energy by LLNL under Contract DE-AC52-07NA27344, by LBNL under Contract DE-AC02-05CH11231, and by PPPL under Contract DE-AC02-76CH03073.
Intense heavy-ion beams have long been considered a promising driver option for inertial-fusion energy production. This paper briefly compares inertial confinement fusion (ICF) to the more-familiar magnetic- confinement approach and presents some advantages of using beams of heavy ions to drive ICF instead of lasers. Key design choices in heavy-ion fusion (HIF) facilities are discussed, particularly the type of accelerator. We then review experiments carried out at Lawrence Berkeley National Laboratory (LBNL) over the past thirty years to understand various aspects of HIF driver physics. A brief review follows of present HIF research in the US and abroad, focusing on a new facility, NDCX-II, being built at LBNL to study the physics of warm dense matter heated by ions, as well as aspects of HIF target physics. Future research directions are briefly summarized.

Slides WEOAS1 [18.657 MB]

Paper	Title	Page
WEP293	Design and Fabrication of the Lithium Beam Ion Injector for NDCX-II	2032
	J.H. Takakuwa, J.-Y. Jung, J.T. Kehl, J.W. Kwan, M. Leitner, P.A. Seidl, W.L. Waldron LBNL, Berkeley, California, USA A. Friedman, D.P. Grote, W. M. Sharp LLNL, Livermore, California, USA
	Funding: This work is performed under the auspices of the U.S. Department of Energy by LBNL under contract DE-AC02-05CH11231. A 130 keV injector is developed for the NDCX-II facility. It consists of a 10.9 cm diameter lithium doped alumina-silicate ion source heated to ~1300 °C and 3 electrodes. Other components include a segmented Rogowski coil for current and beam position monitoring, a gate valve, pumping ports, a focusing solenoid, a steering coil and space for inspection and maintenance access. Significant design challenges including managing the 3-4 kW of power dissipation from the source heater, temperature uniformity across the emitter surface, quick access for frequent ion source replacement, mechanical alignment with tight tolerance, and structural stabilization of the cantilevered 27” OD graded HV ceramic column. The injector fabrication is scheduled to complete by May 2011, and assembly and installation is scheduled to complete by the beginning of July.

WEOAS1	Inertial Fusion Driven by Intense Heavy-Ion Beams	1386
	W. M. Sharp, J.J. Barnard, R.H. Cohen, M. Dorf, A. Friedman, D.P. Grote, S.M. Lund, L.J. Perkins, M.R. Terry LLNL, Livermore, California, USA F.M. Bieniosek, A. Faltens, E. Henestroza, J.-Y. Jung, A.E. Koniges, J.W. Kwan, E. P. Lee, S.M. Lidia, B.G. Logan, P.N. Ni, L.R. Reginato, P.K. Roy, P.A. Seidl, J.H. Takakuwa, J.-L. Vay, W.L. Waldron LBNL, Berkeley, California, USA R.C. Davidson, E.P. Gilson, I. Kaganovich, H. Qin, E. Startsev PPPL, Princeton, New Jersey, USA I. Haber, R.A. Kishek UMD, College Park, Maryland, USA
	Funding: Work performed under the auspices of the US Department of Energy by LLNL under Contract DE-AC52-07NA27344, by LBNL under Contract DE-AC02-05CH11231, and by PPPL under Contract DE-AC02-76CH03073. Intense heavy-ion beams have long been considered a promising driver option for inertial-fusion energy production. This paper briefly compares inertial confinement fusion (ICF) to the more-familiar magnetic- confinement approach and presents some advantages of using beams of heavy ions to drive ICF instead of lasers. Key design choices in heavy-ion fusion (HIF) facilities are discussed, particularly the type of accelerator. We then review experiments carried out at Lawrence Berkeley National Laboratory (LBNL) over the past thirty years to understand various aspects of HIF driver physics. A brief review follows of present HIF research in the US and abroad, focusing on a new facility, NDCX-II, being built at LBNL to study the physics of warm dense matter heated by ions, as well as aspects of HIF target physics. Future research directions are briefly summarized.
	Slides WEOAS1 [18.657 MB]