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Title: HIGH ENERGY DENSITY PHYSICS EXPERIMENTS WITH INTENSE HEAVY ION BEAMS

Abstract

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 inmore » 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.« less

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
Accelerator& Fusion Research Division
OSTI Identifier:
937571
Report Number(s):
LBNL-942E
TRN: US0805818
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Conference: HIF08 Heavy Ion Fusion, Tokyo, Japan, August 2-9, 2008
Country of Publication:
United States
Language:
English
Subject:
70; BRAGG CURVE; CAMERAS; COMPRESSION; ENERGY DENSITY; FABRICATION; HEATING; HEAVY IONS; HOT SPOTS; ION BEAMS; LITHIUM IONS; OPTICAL PYROMETERS; PHYSICS; SPACE CHARGE; STREAK CAMERAS; TARGET CHAMBERS; TARGETS

Citation Formats

Bieniosek, F.M., Henestroza, E., Leitner, M., Logan, B.G., More, R.M., Roy, P.K., Ni, P., Seidl, P.A., Waldron, W.L., and Barnard, J.J. HIGH ENERGY DENSITY PHYSICS EXPERIMENTS WITH INTENSE HEAVY ION BEAMS. United States: N. p., 2008. Web.
Bieniosek, F.M., Henestroza, E., Leitner, M., Logan, B.G., More, R.M., Roy, P.K., Ni, P., Seidl, P.A., Waldron, W.L., & Barnard, J.J. HIGH ENERGY DENSITY PHYSICS EXPERIMENTS WITH INTENSE HEAVY ION BEAMS. United States.
Bieniosek, F.M., Henestroza, E., Leitner, M., Logan, B.G., More, R.M., Roy, P.K., Ni, P., Seidl, P.A., Waldron, W.L., and Barnard, J.J. Fri . "HIGH ENERGY DENSITY PHYSICS EXPERIMENTS WITH INTENSE HEAVY ION BEAMS". United States. https://www.osti.gov/servlets/purl/937571.
@article{osti_937571,
title = {HIGH ENERGY DENSITY PHYSICS EXPERIMENTS WITH INTENSE HEAVY ION BEAMS},
author = {Bieniosek, F.M. and Henestroza, E. and Leitner, M. and Logan, B.G. and More, R.M. and Roy, P.K. and Ni, P. and Seidl, P.A. and Waldron, W.L. and Barnard, J.J.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {8}
}

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