title: Simultaneous, single-pulse, synchrotron x-ray imaging and diffraction under gas gun loading.
abstract: We develop a mini gas gun system for simultaneous, single-pulse, x-ray diffraction and imaging under high strain-rate loading at the beamline 32-ID of the Advanced Photon Source. In order to increase the reciprocal space covered by a small-area detector, a conventional target chamber is split into two chambers: a narrowed measurement chamber and a relief chamber. The gas gun impact is synchronized with synchrotron x-ray pulses and high-speed cameras. Depending on a camera's capability, multiframe imaging and diffraction can be achieved. The proof-of-principle experiments are performed on single-crystal sapphire. The diffraction spots and images during impact are analyzed to quantify lattice deformation and fracture; fracture is dominated by splitting cracks followed by wing cracks, and diffraction peaks are broadened likely due to mosaic spread. Our results demonstrate the potential of such multiscale measurements for studying high strain-rate phenomena at dynamic extremes.
authors.affiliation: The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China.
authors.forename: D
authors.initials: D
authors.lastname: Fan
authors.affiliation: The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China.
authors.forename: J W
authors.initials: JW
authors.lastname: Huang
authors.affiliation: The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China.
authors.forename: X L
authors.initials: XL
authors.lastname: Zeng
authors.affiliation: The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China.
authors.forename: Y
authors.initials: Y
authors.lastname: Li
authors.affiliation: The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China.
authors.forename: J C
authors.initials: JC
authors.lastname: E
authors.affiliation: The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China.
authors.forename: J Y
authors.initials: JY
authors.lastname: Huang
authors.affiliation: Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
authors.forename: T
authors.initials: T
authors.lastname: Sun
authors.affiliation: Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
authors.forename: K
authors.initials: K
authors.lastname: Fezzaa
authors.affiliation: Physics Division P-25, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: Z
authors.initials: Z
authors.lastname: Wang
authors.affiliation: The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China.
authors.forename: S N
authors.initials: SN
authors.lastname: Luo