Published October 2010 | Version v1
Journal article Metadata-only

High-intensity laser-plasma interaction with wedge-shaped-cavity targets

Creators

  • 1. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)
  • 2. Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States)
  • 3. General Atomics, San Diego, California 92186 (United States)

Description

High-intensity, short-pulse laser-interaction experiments with small-mass, wedge-shaped-cavity Cu targets are presented. The diagnostics provided spatially and spectrally resolved measurements of the Cu Kα line emission at 8 keV. The conversion efficiency of short-pulse laser energy into fast electrons was inferred from the x-ray yield for wedge opening angles between 30 deg. and 60 deg. and for s- and p-polarized laser irradiation. Up to 36±7% conversion efficiency was measured for the narrowest wedge with p-polarization. The results are compared with predictions from two-dimensional particle-in-cell simulations.

Additional details

Identifiers

DOI
10.1063/1.3484217;

Publishing Information

Journal Title
Physics of Plasmas
Journal Volume
17
Journal Issue
10
Journal Page Range
p. 103101-103101.7
ISSN
1070-664X
CODEN
PHPAEN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42015676
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S07: ISOTOPES AND RADIATION SOURCES;
Descriptors DEI
CONVERSION; EFFICIENCY; LASER-PRODUCED PLASMA; PLASMA DIAGNOSTICS; PLASMA SIMULATION; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
PLASMA; SIMULATION

Optional Information

Notes
(c) 2010 American Institute of Physics