Speaker
Description
The proton radiography facility at LANL (pRad) performs multi-frame, dynamic radiography of dense materials up to 50 g cm$^{-2}$ with interframe timing down to 100 ns. The multiple Coulomb scattering of protons and the use of magnet optics allows for precise areal densities, and in experiments with radial symmetry, volume density reconstructions. The temporal structure of the Los Alamos Neutron Science Center (LANSCE) 800-MeV proton beam allows flexibility for multi-frame imaging over the duration of dynamic processes lasting up to 20 µs or more. The LANL pRad facility routinely provides valuable data characterizing high explosive detonation and materials under strain. However, it is limited by chromatic effects that effectively limited the ultimate thickness and dynamic range of an experiment, making thin materials and subtle changes hard to visualize. Work currently underway aims to eliminate or mitigate these issues. This talk aims to familiarize the community with pRad’s current capabilities and the work going
on to improve our radiography and expand the range of possible experiments with futureupgrades to the pRad beamline and LANSCE.
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