Laser-driven relativistic electron beam interaction with solid dielectric

Journal Article · Mon Jul 30 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4739920· OSTI ID:22069154

Sarkisov, G S; Ivanov, V V; Leblanc, P; Sentoku, Y; Yates, K; Wiewior, P; Chalyy, O; Astanovitskiy, A; Bychenkov, V Yu; Jobe, D; Spielman, R B ^[1]

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1. Raytheon Ktech, 1300 Eubank Blvd, Albuquerque, NM, 87123 (United States)

The multi-frames shadowgraphy, interferometry and polarimetry diagnostics with sub-ps time resolution were used for an investigation of ionization wave dynamics inside a glass target induced by laser-driven relativistic electron beam. Experiments were done using the 50 TW Leopard laser at the UNR. For a laser flux of {approx}2 Multiplication-Sign 10{sup 18}W/cm{sup 2} a hemispherical ionization wave propagates at c/3. The maximum of the electron density inside the glass target is {approx}2 Multiplication-Sign 10{sup 19}cm{sup -3}. Magnetic and electric fields are less than {approx}15 kG and {approx}1 MV/cm, respectively. The electron temperature has a maximum of {approx}0.5 eV. 2D interference phase shift shows the 'fountain effect' of electron beam. The very low ionization inside glass target {approx}0.1% suggests a fast recombination at the sub-ps time scale. 2D PIC-simulations demonstrate radial spreading of fast electrons by self-consistent electrostatic fields.

• OSTI ID: 22069154
• Journal Information: AIP Conference Proceedings, Vol. 1464, Issue 1; Conference: International symposium on high power laser ablation 2012, Santa Fe, NM (United States), 30 Apr - 3 May 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIELECTRIC MATERIALS
ELECTRIC FIELDS
ELECTRON BEAMS
ELECTRON DENSITY
ELECTRON TEMPERATURE
FARADAY EFFECT
GLASS
INTERFEROMETRY
ION TEMPERATURE
IONIZATION
KERR EFFECT
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA PRODUCTION
PLASMA SIMULATION
POLARIMETRY
RECOMBINATION
RELATIVISTIC RANGE
SOLIDS