Time-resolved X-ray diffraction diagnostic development for the National Ignition Facility

K Werellapatha; N E Palmer; M G Gorman; J V Bernier; N S Bhandarkar; D K Bradley; D G Braun; M Bruhn; A Carpenter; P M Celliers; F Coppari; M Dayton; C Durand; J H Eggert; B Ferguson; B Heidl; C Heinbockel; R Heredia; J Huckins; E Hurd; W Hsing; C M Krauland; A E Lazicki; D Kalantar; J Kehl; K Killebrew; N Masters; M Millot; S R Nagel; R B Petre; Y Ping; D N Polsin; S Singh; C V Stan; D Swift; J Tabimina; A Thomas; T Zobrist; L R Benedetti

doi:10.1063/5.0161343

Time-resolved X-ray diffraction diagnostic development for the National Ignition Facility

Rev Sci Instrum. 2024 Jan 1;95(1):013903. doi: 10.1063/5.0161343.

Authors

K Werellapatha¹, N E Palmer¹, M G Gorman¹, J V Bernier¹, N S Bhandarkar¹, D K Bradley¹, D G Braun¹, M Bruhn¹, A Carpenter¹, P M Celliers¹, F Coppari¹, M Dayton¹, C Durand¹, J H Eggert¹, B Ferguson¹, B Heidl¹, C Heinbockel¹, R Heredia¹, J Huckins¹, E Hurd¹, W Hsing¹, C M Krauland², A E Lazicki¹, D Kalantar¹, J Kehl¹, K Killebrew¹, N Masters¹, M Millot¹, S R Nagel¹, R B Petre¹, Y Ping¹, D N Polsin³, S Singh¹, C V Stan¹, D Swift¹, J Tabimina¹, A Thomas¹, T Zobrist¹, L R Benedetti¹

Affiliations

¹ Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
² General Atomics, San Diego, California 92121, USA.
³ Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.

PMID: 38236087
DOI: 10.1063/5.0161343

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.