Time-resolved X-ray diffraction diagnostic development for the National Ignition Facility.
Journal: The Review Of Scientific Instruments
Published:
Abstract
We present the development of an experimental platform that can collect four frames of x-ray diffraction data along a single line of sight during laser-driven, dynamic-compression experiments at the National Ignition Facility. The platform is comprised of a diagnostic imager built around ultrafast sensors with a 2-ns integration time, a custom target assembly that serves also to shield the imager, and a 10-ns duration, quasi-monochromatic x-ray source produced by laser-generated plasma. We demonstrate the performance with diffraction data for Pb ramp compressed to 150 GPa and illuminated by a Ge x-ray source that produces ∼7 × 1011, 10.25-keV photons/ns at the 400 μm diameter sample.
Authors
K Werellapatha, N Palmer, M Gorman, J Bernier, N Bhandarkar, D Bradley, D Braun, M Bruhn, A Carpenter, P Celliers, F Coppari, M Dayton, C Durand, J Eggert, B Ferguson, B Heidl, C Heinbockel, R Heredia, J Huckins, E Hurd, W Hsing, C Krauland, A Lazicki, D Kalantar, J Kehl, K Killebrew, N Masters, M Millot, S Nagel, R Petre, Y Ping, D Polsin, S Singh, C Stan, D Swift, J Tabimina, A Thomas, T Zobrist, L Benedetti