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Title: Development of Electroplated Au Capsule Fill Tube Assemblies (CFTA) for the Double Shell ICF Concept on NIF

Journal Article · · Fusion Science and Technology
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  1. General Atomics, San Diego, CA (United States)
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Current capsules used at the National Ignition Facility (NIF) utilize a single shell design comprised of a single ablator material. Although single shell designs are currently the standard design, they suffer from several physics disadvantages, such as sensitivity to asymmetries and instabilities. The double shell is a proposed design utilizing a high-Z inner metal shell with a low-Z outer shell that is intended to mitigate the issues associated with typical single shell designs. Electroplating is one method that can be utilized to fabricate high-Z metal shells. Au is one particular material that can be electroplated with high density and uniformity. Capsule fill tube assemblies (CFTAs) built from these Au shells have passed all cryogenic leak tests. The shells have a low native surface roughness and are free of voids. Lastly, Au shells have been successfully fabricated, characterized, and built into CFTAs.

Research Organization:
General Atomics, San Diego, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0001808
OSTI ID:
1462721
Journal Information:
Fusion Science and Technology, Vol. 73, Issue 3; ISSN 1536-1055
Publisher:
American Nuclear SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (6)

Double‐shell inertial confinement fusion target fabrication journal April 1981
Understanding the Critical Parameters of the PAMS Mandrel Fabrication Process journal September 2016
Complete Surface Mapping of ICF Shells journal March 2004
3D Surface Reconstruction of ICF Shells after Full Surface Spheremapping journal May 2006
Development of a coating technique for inertial confinement fusion plastic targets journal May 1986
Capsule Shimming Developments for National Ignition Facility (NIF) Hohlraum Asymmetry Experiments journal December 2017

Figures / Tables (9)

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY