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Title: Permeation fill-tube design for inertial confinement fusion target capsules

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.
Authors:
 [1] ;  [2] ;  [2] ;  [3] ;  [3] ;  [4]
  1. Rochester Inst. of Tech., Rochester, NY (United States)
  2. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
  3. General Atomics, San Diego, CA (United States)
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Report Number(s):
2016-217, 1350
Journal ID: ISSN 2095-4719; applab; PII: S2095471917000056; TRN: US1702209
Grant/Contract Number:
NA0001944
Type:
Accepted Manuscript
Journal Name:
High Power Laser Science and Engineering
Additional Journal Information:
Journal Volume: 5; Journal ID: ISSN 2095-4719
Publisher:
Cambridge University Press
Research Org:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; fill-tube; inertial confinement fusion; permeation fill; target capsule
OSTI Identifier:
1375902