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Proceedings Paper

Three-Frame Flash X-Radiography System For Ion Beam Pellet Implosion Studies
Author(s): J. Chang; D. L. Fehl; L. Baker; D. J. Johnson
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Paper Abstract

A high resolution three-frame flash x-radiography (FXR) system has been developed for studies of intense ion beam driven Inertial Confinement Fusion pellet implosions. This system consists of three independently triggered micro-point [ ~100 4m spot size] FXR sources and three lead shielded collimating cameras. Each of the FXR sources has a 3 ns output pulse that is characteristic of a 600 keV tungsten bremsstrahlung spectrum. The sources and the cameras are arranged with equal azimuthal angular spacing on a 12° half angle biconic surface. With this system, three time-separated and 3X magnified x-radiographic images of the imploding target with 100 p.m spatial resolution and 2.6 ns temporal resolution can be made. Targets moving as fast as 3-4 cm/4s can be recorded without motion blur. Studies of high Z metallic spherical and cylindrical targets imploded by an intense ion beam have been carried out. Results show that ablatively driven puher velocity as high as 1 cm/4s can be achieved with an ion beam intensity of 0.5 TW/cm on target.

Paper Details

Date Published: 1 March 1983
PDF: 4 pages
Proc. SPIE 0348, 15th Intl Congress on High Speed Photography and Photonics, (1 March 1983); doi: 10.1117/12.967821
Show Author Affiliations
J. Chang, Sandia National Laboratories (United States)
D. L. Fehl, Sandia National Laboratories (United States)
L. Baker, Sandia National Laboratories (United States)
D. J. Johnson, Sandia National Laboratories (United States)

Published in SPIE Proceedings Vol. 0348:
15th Intl Congress on High Speed Photography and Photonics
Lincoln L. Endelman, Editor(s)

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