Design of the Third X-Ray Line-of-Sight Instrument for OMEGA

The design of a third x-ray line of sight is underway to diagnose deuterium–tritium cryogenic layered implosions on the University of Rochester’s OMEGA laser. Technical requirements of 20-ps framing time and <10-mm spatial resolution are necessary to constrain 3-D reconstructions of the assembled hot fuel at peak thermonuclear output. The technical approach consists of a pinhole array imager and demagnifying time-dilation drift tube that are coupled to side-by-side hybrid complementary metal-oxide semiconductor image sensors. The technical design space for the instrument will be discussed and the conceptual design presented. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856.