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Target experiments with high-power proton beams

Abstract

At the Karlsruhe Light Ion Facility KALE a pulsed high-power proton beam (50 ns, 0.15 TW/cm{sup 2}, 8 mm fwhm focus diameter, 1.7 MeV peak proton energy) is used to generate short, intense pressure pulses or to ablatively accelerate targets 10-100 {mu}m thick to velocities > 10 km/s. The velocity history of the rear target surface is recorded by line-imaging laser Doppler velocimetry with high spatial ({>=} 10 {mu}m) and temporal ({>=} 200 ps) resolution, and provides information on proton beam parameters, and on the state of the matter at high energy densities and intense loading. Utilizing the bell-shaped power density profile the authors demonstrated a new straightforward method for measuring the shock pressure that leads to material melting in the rarefaction wave. For the first time, the dynamic tensile strength was measured across a crystal grain boundary, and using targets with a 1D periodic structure, the growth rate of a Rayleigh Taylor instability could be measured for the first time in direct drive experiments with an ion beam. (author). 8 figs., 15 refs.
Authors:
Baumung, K; Bluhm, H; Hoppe, P; Rusch, D; Singer, J; Stoltz, O; [1]  Kanel, G I; Razorenov, S V; Utkin, A V [2] 
  1. Forschungszentrum Karlsruhe (Germany)
  2. Russian Academy of Sciences, Chernogolovka (Russian Federation). Inst. of Chemical Physics
Publication Date:
Dec 31, 1996
Product Type:
Conference
Report Number:
INIS-CZ-0002; CONF-960610-
Reference Number:
SCA: 700411; PA: AIX-28:056086; EDB-97:114604; SN: 97001835065
Resource Relation:
Conference: BEAMS `96: 11. international conference on high-power particle beams, Prague (Czech Republic), 10-14 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of Beams `96. Proceedings of the 11th international conference on high power particle beams. Vol. I; Jungwirth, K.; Ullschmied, J. [eds.]; PB: [684] p.
Subject:
70 PLASMA PHYSICS AND FUSION; COPPER; TENSILE PROPERTIES; PROTON BEAMS; ION BEAM TARGETS; RAYLEIGH-TAYLOR INSTABILITY; INSTABILITY GROWTH RATES; ABLATION; IMPACT SHOCK; INERTIAL CONFINEMENT; KILO AMP BEAM CURRENTS; MELTING POINTS; PARTICLE BEAM FUSION ACCELERATOR; PLASMA ACCELERATION; PLASMA MACROINSTABILITIES; SHOCK WAVES; TERAWATT POWER RANGE; VELOCIMETERS; VERY HIGH PRESSURE
OSTI ID:
511278
Research Organizations:
Ceskoslovenska Akademie Ved, Prague (Czech Republic). Ustav Fyziky Plazmatu
Country of Origin:
Czech Republic
Language:
English
Other Identifying Numbers:
Other: ON: DE97637662; ISBN 80-902250-3-9; TRN: CZ9726691056086
Availability:
INIS; OSTI as DE97637662
Submitting Site:
INIS
Size:
pp. 72-80
Announcement Date:

Citation Formats

Baumung, K, Bluhm, H, Hoppe, P, Rusch, D, Singer, J, Stoltz, O, Kanel, G I, Razorenov, S V, and Utkin, A V. Target experiments with high-power proton beams. Czech Republic: N. p., 1996. Web.
Baumung, K, Bluhm, H, Hoppe, P, Rusch, D, Singer, J, Stoltz, O, Kanel, G I, Razorenov, S V, & Utkin, A V. Target experiments with high-power proton beams. Czech Republic.
Baumung, K, Bluhm, H, Hoppe, P, Rusch, D, Singer, J, Stoltz, O, Kanel, G I, Razorenov, S V, and Utkin, A V. 1996. "Target experiments with high-power proton beams." Czech Republic.
@misc{etde_511278,
title = {Target experiments with high-power proton beams}
author = {Baumung, K, Bluhm, H, Hoppe, P, Rusch, D, Singer, J, Stoltz, O, Kanel, G I, Razorenov, S V, and Utkin, A V}
abstractNote = {At the Karlsruhe Light Ion Facility KALE a pulsed high-power proton beam (50 ns, 0.15 TW/cm{sup 2}, 8 mm fwhm focus diameter, 1.7 MeV peak proton energy) is used to generate short, intense pressure pulses or to ablatively accelerate targets 10-100 {mu}m thick to velocities > 10 km/s. The velocity history of the rear target surface is recorded by line-imaging laser Doppler velocimetry with high spatial ({>=} 10 {mu}m) and temporal ({>=} 200 ps) resolution, and provides information on proton beam parameters, and on the state of the matter at high energy densities and intense loading. Utilizing the bell-shaped power density profile the authors demonstrated a new straightforward method for measuring the shock pressure that leads to material melting in the rarefaction wave. For the first time, the dynamic tensile strength was measured across a crystal grain boundary, and using targets with a 1D periodic structure, the growth rate of a Rayleigh Taylor instability could be measured for the first time in direct drive experiments with an ion beam. (author). 8 figs., 15 refs.}
place = {Czech Republic}
year = {1996}
month = {Dec}
}