An upgraded version of NIF’s Kirkpatrick-Baez high-resolution x-ray microscope has produced the clearest images yet of the effects on NIF implosions caused by the fill tube used to insert fuel into the target capsule and the ultrathin “tents” that suspend the capsule inside the hohlraum. The perturbations are believed to interfere with the implosion’s ability to generate the energy needed to spark a self-sustaining fusion reaction that results in ignition. Read more...