Measurement by XUV laser radiography of hydrodynamic perturbations in laser accelerated thin foil targets
- Lawrence Livermore National Lab., CA (United States)
- Lawrence Livermore National Lab., CA (United States); and others
A novel diagnostic application of XUV lasers has been developed for the study of the hydrodynamic imprinting of laser speckle pattern on directly driven laser fusion targets. A neon-like Yttrium laser operating at 15.5 nm is used to probe thin foils of Si irradiated with an SSD smoothed laser at 0.35 mm wavelength and 6 10{sup 12} Wcm{sup {minus}2} intensity, simulating the initial phase of irradiation a laser fusion capsule. Measurements of the perturbations in target opacity are made by XUV radiography through the foil. The magnitude and Fourier composition of the perturbations has been determined both before and after Rayleigh Taylor growth showing the mode spectra of both the initial imprint and the subsequent RT growth.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 106582
- Report Number(s):
- UCRL-JC-121586; CONF-950793-20; ON: DE95016632; TRN: 95:021933
- Resource Relation:
- Conference: 40. annual meeting of the Society of Photo-Optical Instrumentation Engineers, San Diego, CA (United States), 9-14 Jul 1995; Other Information: PBD: 11 Jul 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of single mode imprint in laser ablative drive of a thin Al foil by extreme ultraviolet laser radiography
X-ray laser radiography of perturbations due to imprint of laser speckle in 0.35 {mu}m laser irradiation of a thin Si foil