Li-Beam-Heated Hohlraum Experiments at Particle Beam Fusion Accelerator II

Ms, Derzon; Ga, Chandler; Rj, Dukart; Dj, Johnson; Rj, Leeper; Mk, Matzen; Ej, McGuire; Mehlhorn, T. A.; Ar, Moats; Olson, R E; Cl, Ruiz

doi:10.1103/physrevlett.76.435

Cited by 14 publications

(4 citation statements)

References 8 publications

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“…The iron converter must heat up and ionize (so the opacity drops) before the capsule pole can catch up with the waist. Experiments with light ions have demonstrated that ion beams can heat low-Z foam converters until the converters are optically thin to X ray drive [18].…”

Section: Symmetrymentioning

confidence: 99%

A distributed radiator, heavy ion target driven by Gaussian beams in a multibeam illumination geometry

Callahan-Miller

Tabak

1999

Nucl. Fusion

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An inertial confinement fusion target driven by ion beams in a multibeam illumination geometry is presented. Two dimensional integrated LASNEX calculations (ion beam deposition to fusion burn in one computer simulation) predict a gain of greater than 65 for this target. Each beam has a Gaussian density profile and is focused to an elliptically shaped spot. Multiple beam ellipses are overlayed to form an annulus on the end of the cylindrical hohlraum. The beams enter at angles relative to the cylindrical axis of the hohlraum that are consistent with both liquid wall chamber protection and the space required for a final focusing system upstream. For an accelerator that is 25% efficient (η = 0.25), a gain G of 65 leads to ηG greater than 16; a reactor with a reasonably small recirculating power fraction requires ηG greater than 8-10.

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Section: Symmetrymentioning

confidence: 99%

A distributed radiator, heavy ion target driven by Gaussian beams in a multibeam illumination geometry

Callahan-Miller

Tabak

1999

Nucl. Fusion

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“…To date, ϳ1.5 TW͞cm 2 Li 1 ion beams have heated hohlraum targets to 58 eV radiation temperatures, delivering ϳ20 kJ to the hohlraum in 15 ns on the Particle Beam Fusion Accelerator II (PBFA II) facility at Sandia National Laboratories [1,2]. Further increases in focused beam intensity are needed to produce ignition and gain in an inertial confinement fusion (ICF) hohlraum.…”

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confidence: 99%

Charge-Exchange Atoms and Ion Source Divergence in a 20 TW Applied-BIon Diode

et al. 1996

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Space-and time-resolved spectroscopy is used to measure properties of several-keV Li atoms in a 20 TW ion diode. These measurements out in the diode anode-cathode gap are used in a chargeexchange model for the Li atom production in order to obtain the Li 1 beam angular divergence within 50 mm of the LiF-coated anode surface. This ion divergence near the surface is surprisingly large, and accounts for about half the typical 25 mrad final accelerated-beam divergence. The measurements provide constraints for models attempting to explain highly diverging ion emission from thin alkalihalide films in ϳ10 MV͞cm applied fields. [S0031-9007 (96)01464-0] PACS numbers: 52.75.Pv, 41.75.Ak, 52.25.Ya

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“…Nagaoka University and Tokyo Institute of Technology, Japan, the University of Wisconsin, Michigan, and the Weizmann Institute, Israel, also participated in the light‐ion fusion research. The study of heavy/light ion beam transport and target physics used to be the main topic previously, and important results were obtained . Based on SESAME EoS models, Figure shows the expected bulk temperature of hydrogen, aluminium, and gold when they are irradiated with uranium ions of 400 MeV/u as a function of the beam intensity.…”

Section: Intense Heavy Ion Beams: the Added Value To Hedpmentioning

confidence: 99%

Accelerator‐driven high‐energy‐density physics: Status and chances

Ren

Mäurer

Katrík

et al. 2017

Contributions to Plasma Physics

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We review the development of high‐energy‐density physics (HEDP) driven by intense particle beams, and give an account of the current status and the anticipated developments in the near future. Since progress of this field is strongly coupled to the technical development of high‐current accelerators, we report on the recent results in specific areas of high‐current accelerators relevant to HEDP. These are related to dynamic vacuum problems and the activation of accelerator structural material by high‐current, high‐energy particle beams, and we give an example of dense plasma diagnostics with high‐energy protons. The reported results have been achieved at existing machines at the Gesellschaft für Schwerionenforschung (GSI‐Darmstadt), the Institute of Theoretical and Experimental Physics in Moscow (ITEP‐Moscow), and the Institute of Modern Physics (IMP‐Lanzhou), and they are relevant for facilities under construction such as the FAIR facility in Darmstadt and the High Intensity Accelerator Facility (HIAF) proposed in China.

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Li-Beam-Heated Hohlraum Experiments at Particle Beam Fusion Accelerator II

Cited by 14 publications

References 8 publications

A distributed radiator, heavy ion target driven by Gaussian beams in a multibeam illumination geometry

A distributed radiator, heavy ion target driven by Gaussian beams in a multibeam illumination geometry

Charge-Exchange Atoms and Ion Source Divergence in a 20 TW Applied-BIon Diode

Accelerator‐driven high‐energy‐density physics: Status and chances

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