Modular until it's Not – Imaging Fast, Hard X-Rays at NIF

The proposed multi-frame gated x-ray imager (MGXI) is a fast, hard x-ray imaging diagnostic for use in ICF and HED experiments at the National Ignition Facility (NIF), such as Compton radiography and hot spot imaging. MGXI has goals to image 10-100 keV x-rays with 100-1000 ps temporal resolution in 2-8 frames and >5% DQE. Modularity of the versatile testbed for initial MGXI component experimentation starts with testing microchannel plates (MCPs) under vacuum with an electron gun and a simple photodiode (PD) array. Simultaneously, MCPs will be modeled in Computer Simulation Technology (CST) to determine the effects an applied magnetic field has on the electron trajectories.