Heavy ion fusion science research for high energy density physics and fusion applications

Logan, B.G.; Barnard, J.J.; Bieniosek, F.M.; Cohen, R. H.; Coleman, J. E.; Davidson, Ronald C.; Efthimion, P. C.; Friedman, A.; Gilson, Erik; Greenway, W.; Grisham, L.; Grote, D.P.; Henestroza, E.; Hoffmann, D. H. H.; Kaganovich, Igor; Covo, M. Kireeff; Kwan, J.W.; LaFortune, K. N.; Lee, E. P.; Leitner, M.; Lund, Steven M.; Molvik, A.W.; Ni, P.; Penn, G.; Perkins, L.J.; Qin, Hong; Roy, P.K.; Sefkow, A. B.; Seidl, P.A.; Sharp, W.M.; Startsev, Edward A.; Vay, Jean‐Luc; Waldron, W.L.; Wurtele, J. S.; Welch, D. R.; Westenskow, G.; Yu, S.S.

doi:10.1088/1742-6596/112/3/032029

“…We have conducted an experiment at the HHT target station at GSI [12,13]. The experiment studied the effect of pore size on target behavior using existing diagnostics, for example by measuring the target temperature as a function of pore size and compare with model predictions of the physics of porous targets.…”

Section: Porous Targetsmentioning

confidence: 99%

High Energy Density Physics Experiments With Intense Heavy Ion Beams

Henestroza¹,

Leitner²,

Logan³

et al. 2010

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The US heavy ion fusion science program has developed techniques for heating ion-beam-driven warm dense matter (WDM) targets. The WDM conditions are to be achieved by combined longitudinal and transverse space-charge neutralized drift compression of the ion beam to provide a hot spot on the target with a beam spot size of about 1 mm, and pulse length about 1-2 ns. As a technique for heating volumetric samples of matter to high energy density, intense beams of heavy ions are capable of delivering precise and uniform beam energy deposition dE/dx, in a relatively large sample size, and the ability to heat any solid-phase target material. Initial experiments use a 0.3 MeV K+ beam (below the Bragg peak) from the NDCX-I accelerator. Future plans include target experiments using the NDCX-II accelerator, which is designed to heat targets at the Bragg peak using a 3-6 MeV lithium ion beam. The range of the beams in solid matter targets is about 1 micron, which can be lengthened by using porous targets at reduced density.We have completed the fabrication of a new experimental target chamber facility for WDM experiments, and implemented initial target diagnostics to be used for the first target experiments in NDCX-1. The target chamber has been installed on the NDCX-I beamline. The target diagnostics include a fast multi-channel optical pyrometer, optical streak camera, VISAR, and high-speed gated cameras. Initial WDM experiments will heat targets by compressed NDCX-I beams and will explore measurement of temperature and other target parameters. Experiments are planned in areas such as dense electronegative targets, porous target homogenization and two-phase equation of state.2

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“…Porous targets have the advantage that the ion beam range is longer than in a solid-density target, thus slowing down the hydrodynamic expansion time of the heated target. We have conducted an experiment at the HHT target station at GSI [12,13]. The experiment studied the effect of pore size on target behavior using existing diagnostics, for example by measuring the target temperature as a function of pore size and compare with model predictions of the physics of porous targets.…”

Section: Porous Targetsmentioning

confidence: 99%

High-energy density physics experiments with intense heavy ion beams

Bieniosek

¹

,

Henestroza

²

,

Leitner

³

et al. 2009

Nuclear Instruments and Methods in Physics Research Section A:

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The US heavy ion fusion science program has developed techniques for heating ion-beam-driven warm dense matter (WDM) targets. The WDM conditions are to be achieved by combined longitudinal and transverse space-charge neutralized drift compression of the ion beam to provide a hot spot on the target with a beam spot size of about 1 mm, and pulse length about 1-2 ns. As a technique for heating volumetric samples of matter to high energy density, intense beams of heavy ions are capable of delivering precise and uniform beam energy deposition dE/dx, in a relatively large sample size, and the ability to heat any solid-phase target material. Initial experiments use a 0.3 MeV K+ beam (below the Bragg peak) from the NDCX-I accelerator. Future plans include target experiments using the NDCX-II accelerator, which is designed to heat targets at the Bragg peak using a 3-6 MeV lithium ion beam. The range of the beams in solid matter targets is about 1 micron, which can be lengthened by using porous targets at reduced density.We have completed the fabrication of a new experimental target chamber facility for WDM experiments, and implemented initial target diagnostics to be used for the first target experiments in NDCX-1. The target chamber has been installed on the NDCX-I beamline. The target diagnostics include a fast multi-channel optical pyrometer, optical streak camera, VISAR, and high-speed gated cameras. Initial WDM experiments will heat targets by compressed NDCX-I beams and will explore measurement of temperature and other target parameters. Experiments are planned in areas such as dense electronegative targets, porous target homogenization and two-phase equation of state.2

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“…How to use RPA to produce high-energy monoenergetic heavy ion beams is still unknown. Meanwhile, comparing to proton and light ions, heavy ion beams have a much broader range of applications related to medicine, materials [15], nuclear fission and fusion [16,17], Quantum Electrodynamics [18] and High Energy Density Plasmas [19].…”

mentioning

confidence: 99%

Generation of high-energy mono-energetic heavy ion beams by radiation pressure acceleration of ultra-intense laser pulses

Wu

¹

,

Qiao

²

,

McGuffey

³

et al. 2014

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Generation of high-energy mono-energetic heavy ion beams by radiation pressure acceleration (RPA) of intense laser pulses is investigated. Different from previously studied RPA of protons or light ions, the dynamic ionization of high-Z atoms can stabilize the heavy ion acceleration. A selforganized, stable RPA scheme specifically for heavy ion beams is proposed, where the laser peak intensity is required to match with the large ionization energy gap when the successive ionization state passes the noble gas configurations [such as removing an electron from the helium-like charge state ðZ À 2Þ þ to ðZ À 1Þ þ ]. Two-dimensional particle-in-cell simulations show that a monoenergetic Al 13þ beam with peak energy 1.0 GeV and energy spread of only 5% can be obtained at intensity of 7 Â 10 20 W=cm 2 through the proposed scheme. A heavier, mono-energetic, ion beam (Fe 26þ ) can attain a peak energy of 17 GeV by increasing the intensity to 10 22 W=cm 2 . V C 2014 AIP Publishing LLC. [http://dx.

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Heavy ion fusion science research for high energy density physics and fusion applications

Cited by 6 publications

References 29 publications

High Energy Density Physics Experiments With Intense Heavy Ion Beams

High Energy Density Physics Experiments With Intense Heavy Ion Beams

High-energy density physics experiments with intense heavy ion beams

Generation of high-energy mono-energetic heavy ion beams by radiation pressure acceleration of ultra-intense laser pulses

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