skip to main content

SciTech ConnectSciTech Connect

Title: High-power laser interaction with low-density C–Cu foams

We study the propagation of high-power laser beams in micro-structured carbon foams by monitoring the x-ray output from deliberately introduced Cu content. In particular, we characterize this phenomenon measuring absolute time-resolved x-ray yields, time-resolved x-ray imaging, and x-ray spectroscopy. New experimental results for C–Cu foams show a faster heat front velocity than simulation that assumed homogeneous plasma. We suggest the foam micro-structure may explain this trend.
Authors:
; ; ; ; ;  [1] ;  [2]
  1. Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94550 (United States)
  2. Sandia National Laboratories, 7011 East Ave., Livermore, California 94550 (United States)
Publication Date:
OSTI Identifier:
22489868
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CARBON; COPPER; FOAMS; HOMOGENEOUS PLASMA; LASER RADIATION; MICROSTRUCTURE; PHOTON BEAMS; PLASMA SIMULATION; TIME RESOLUTION; VELOCITY; X-RAY SPECTROSCOPY