The Phelix Pulsed Power Project: Bringing Portable Magnetic Drive to World Class Radiography
LOS ALAMOS NATIONAL LAB NM
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The PHELIX pulsed power project will introduce magnetically driven hydrodynamics experiments to the Los Alamos National Laboratory s proton radiography facility pRad. The Precision High Energy-density Liner Implosion eXperiment PHELIX has been commissioned at Los Alamos. A small footprint capacitor bank consisting of four parallel connected single-stage marx units 500 kJ is cable coupled to a toroidal, current stepup transformer to deliver multi-Mega-Ampere, 10 s current pulses to cm size cylindrical loads. In a sequence of tests the performance of each component capacitor bank and transformer was evaluated and compared to a circuit model. The transformer coupling was observed to be k 0.93. The tests culminated in a liner implosion experiment in which an 3 cm radius, 0.8 mm thick, 3 cm tall aluminum liner was accelerated to a velocity of 1 kms. The suite of machine diagnostics included linear Rogowski coils and Faraday rotation for current measurements. The experimental diagnostics include Bdot probes, multi-channel photon Doppler velocimetry PDV, and single-frame, flash X-radiography to evaluate the performance of the high precision liner implosion. Currently, work is focused on integrating PHELIX into normal operations with the 800 MeV proton radiography facilities. There, high-resolution, high-frame-rate imaging of hydrodynamic experiments will be possible.
- Test Facilities, Equipment and Methods