High Power Laser Science and Engineering, 2017, 5 (1): 010000e6, Published Online: Jul. 26, 2018
Permeation fill-tube design for inertial confinement fusion target capsules
Abstract
A unique approach for permeation filling of nonpermeable inertial confinement fusion target capsules with deuterium–tritium (DT) is presented. This process uses a permeable capsule coupled into the final target capsule with a 0.03-mm-diameter fill tube. Leak free permeation filling of glow-discharge polymerization (GDP) targets using this method have been successfully demonstrated, as well as ice layering of the target, yielding an inner ice surface roughness of 1-$\unicode[STIX]{x03BC}$ m rms (root mean square). Finally, the measured DT ice-thickness profile for this experiment was used to validate a thermal model’s prediction of the same thickness profile.
B.S. Rice, J. Ulreich, C. Fella, J. Crippen, P. Fitzsimmons, A. Nikroo. Permeation fill-tube design for inertial confinement fusion target capsules[J]. High Power Laser Science and Engineering, 2017, 5(1): 010000e6.