Development and characterization of a pair of 30–40 ps x-ray framing cameras

Abstract

We have constructed two slightly different high‐speed framing cameras for use on NOVA and the OMEGA Upgrade. Both units are based on the gating of a microchannel plate, with one detector having a pore length to diameter ratio half that of the other. We will discuss the factors limiting the temporal resolution of each detector and will compare the results of modeling with gate width measurements taken using a short‐pulse laser. We will also compare time‐resolved x‐ray images recorded using one of these devices with data from an older (∼90 ps resolution) detector.