High Energy Density Physics Experiments With Intense Heavy Ion Beams

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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 ... continued below

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Bieniosek, F. M.; Henestroza, E.; Leitner, M.; Logan, B. G.; More, R. M.; Roy, P. K. et al. August 1, 2008.

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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.

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  • HIF08 Heavy Ion Fusion, Tokyo, Japan, August 2-9, 2008

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  • Report No.: LBNL-942E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 937571
  • Archival Resource Key: ark:/67531/metadc902657

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  • August 1, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 4, 2017, 3:29 p.m.

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Bieniosek, F. M.; Henestroza, E.; Leitner, M.; Logan, B. G.; More, R. M.; Roy, P. K. et al. High Energy Density Physics Experiments With Intense Heavy Ion Beams, article, August 1, 2008; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc902657/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.