Time-Resolved X-Ray Pinhole Photography Of Compressed Laser Fusion Targets

D. T. Attwood

doi:10.1117/12.955240

14 September 1977 Time-Resolved X-Ray Pinhole Photography Of Compressed Laser Fusion Targets

D. T. Attwood

Proceedings Volume 0097, 12th Intl Congress on High Speed Photography; (1977) https://doi.org/10.1117/12.955240
Event: 12th International Congress on High Speed Photography, 1976, Toronto, Canada

Abstract

In this paper we discuss use of the Livermore x-ray streak camera to temporally record x-ray pinhole images of laser compressed targets. Use is made of specially fabricated composite x-ray pinholes which are near diffraction limited for 6 Å x-rays, but easily aligned with a He-Ne laser of 6328 Å wavelength. With a 6 μm x-ray pinhole, the overall system can be aligned to 5 μm accuracy and provides implosion characteristics with space-time resolutions of approximately 6 μm and 15 psec. Acceptable criteria for pinhole alignment, requisite x-ray flux, and filter characteristics are discussed. Implosion characteristics are presented from our present experiments with 68 pm diameter glass microshell targets and 0.45 terawatt, 70 psec Nd laser pulses. Final implosion velocities in excess of 3 x 107 cm/sec are evident.

Citation Download Citation

D. T. Attwood "Time-Resolved X-Ray Pinhole Photography Of Compressed Laser Fusion Targets", Proc. SPIE 0097, 12th Intl Congress on High Speed Photography, (14 September 1977); https://doi.org/10.1117/12.955240

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