Time-Resolved X-Ray Spectrographic Instrumentation For Laser Fusion And X-Ray Laser Studies

M. C. Richardson; G. G. Gregory; S. A. Letzring; R. S. Marjoribanks; B. Yaakobi; B. L. Henke; P. A. Jaanimagi; A. Hauer

doi:10.1117/12.949876

14 January 1986 Time-Resolved X-Ray Spectrographic Instrumentation For Laser Fusion And X-Ray Laser Studies

M. C. Richardson, G. G. Gregory, S. A. Letzring, R. S. Marjoribanks, B. Yaakobi, B. L. Henke, P. A. Jaanimagi, A. Hauer

Proceedings Volume 0569, High Speed Photography, Videography, and Photonics III; (1986) https://doi.org/10.1117/12.949876
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

Recent advances in the development of high resolution time-resolving x-ray spectroscopic instrumentation have considerably improved the capabilities of diagnosing details of electron and radiation transport, implosion dynamics and final compressed core conditions of laser fusion targets. In addition, the current interest in x-ray laser schemes utilizing laser-produced plasmas places even more stringent demands on time- and space-resolved x-ray and XUV diagnostics. In this paper we will summarize some of the recent technical developments made at LLE to meet these needs, and give illustrations of the capabilities of new x-ray spectroscopic instrumentation activated on recent laser fusion and x-ray laser experiments. Technical details, performance criteria and typical experimental results will be presented on several time resolving spectrographic systems. A soft x-ray, transmission grating, streak spectrograph (resolution ~ 1.5 Å) time-resolves spectra in the 3-200 Å range. A streak elliptical crystal spectrograph permits the resolution of x-rays in a number of spectral regions in the 2-100 Å range. We will also present details of (a) a streak planar crystal spectrograph having high spectral resolution and sensitivity, and (b) a novel, high resolving power (λ/Δλ ~ 103) streak spectrograph incorporating a unique crystal geometry permitting high dispersion, and having good collection efficiency. The impact these developments will have on current investigations of high temperature, dense plasmas in laser fusion and x-ray laser research will be discussed.

Citation Download Citation

M. C. Richardson, G. G. Gregory, S. A. Letzring, R. S. Marjoribanks, B. Yaakobi, B. L. Henke, P. A. Jaanimagi, and A. Hauer "Time-Resolved X-Ray Spectrographic Instrumentation For Laser Fusion And X-Ray Laser Studies", Proc. SPIE 0569, High Speed Photography, Videography, and Photonics III, (14 January 1986); https://doi.org/10.1117/12.949876

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