9 August 1983 X-Ray Backlighting Sources Of 4 To 10 keV For Laser Fusion Targets
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Proceedings Volume 0312, 1st European Conf on Cineradiography with Photons or Particles; (1983) https://doi.org/10.1117/12.932921
Event: 1st European Conference on Cineradiography with Photons or Particles, 1981, Paris, France
Abstract
High-density, short-duration x-ray pulses are necessary to diagnose the compression of laser fusion targets. Present target designs are such that backlighting sources ranging from a few thousand electron volts to 100 keV will be necessary. The desired source durations range from a few tens of picoseconds for flash radiography to several nanoseconds for streaked backlighting, and the source occurence must be tightly synchronized to that of the target-irradiating laser pulse. For the latter reason, a laser-induced x-ray pulse is preferred. An initial study of the K lines of Ti, Ni, and Zn as possible backlighting sources was conducted. The conversion efficiency of laser light into line radiation was obtained as a function of laser intensity, pulse length, and wavelength. A threshold laser intensity for x-ray line production was identified. Information was obtained on the size and duration of the x-ray emission source, in relation to laser parameters. The experimental results, and their impact on backlighting capability for high-density laser fusion targets, are discussed.*
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
V. C. Rupert, V. C. Rupert, D. L. Matthews, D. L. Matthews, L. N. Koppel, L. N. Koppel, } "X-Ray Backlighting Sources Of 4 To 10 keV For Laser Fusion Targets", Proc. SPIE 0312, 1st European Conf on Cineradiography with Photons or Particles, (9 August 1983); doi: 10.1117/12.932921; https://doi.org/10.1117/12.932921
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