9 papers
Laboratory measurements of energy partitioning and anomalous electron heating in magnetized, perpendicular collisionless shocks
V. Valenzuela-Villaseca, S. Totorica, J. Griff-McMahon +6
We present laboratory results on energy partitioning from supercritical, magnetized collisionless shock experiments (, ). We report the first ob…
Expansion-Driven Self-Magnetization of High-Energy-Density Plasmas
K. V. Lezhnin, S. R. Totorica, J. Griff-McMahon +4
Understanding plasma self-magnetization is one of the fundamental challenges in both laboratory and astrophysical plasmas. Self-magnetization can modify the plasma transport proper…
Laser ion acceleration from concave targets by subpicosecond pulses
K. V. Lezhnin, V. Ospina-Bohórquez, J. Griff-McMahon +6
Laser-driven proton acceleration provides a powerful route for generating ultrashort, high-charge proton beams. Many applications, including secondary neutron sources and inertial…
Evolution of laser-driven magnetic fields from proton tomography
J. Griff-McMahon, V. Valenzuela-Villaseca, C. A. Walsh +9
Self-generated magnetic fields are commonly produced in high-power laser-plasma interactions. These fields can inhibit plasma heat-flow which makes them important in inertial fusio…
Geometric scaling of laser-driven proton focusing from hemispherical foils
Jesse Griff-McMahon, Xavier Vaisseau, William Fox +7
We systematically characterize the focusing behavior of laser-driven proton beams from hemispherical targets of various diameters using mesh radiography. The proton focal location…
Structure of self-generated magnetic fields in laser-solid interaction from proton tomography
Jesse Griff-McMahon, Christopher A. Walsh, Vicente Valenzuela-Villaseca +9
Strong magnetic fields are naturally self-generated in high-power, laser-solid interactions through the Biermann-battery mechanism. This work experimentally characterizes the 3D lo…