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Title: Novel Capsule Fill Tube Assemblies for the Hydrodynamic Growth Radiography Targets

Capsule Fill Tube Assemblies (CFTAs) consist of an ablator capsule and fill tube via a laser drilled funnel hole. This hole then tapers from 17 μm diameter at the outer surface of the ablator capsule to less than 5 μm diameter on the inside of the capsule over approximately 200 μm of wall thickness. Demand for better understanding of the fill tube perturbation during the capsule implosion has driven advancements in the fill tube design. Engineering efforts have been made on Hydrodynamic Growth Radiography Assemblies (HGRs) using multiple tube design variations, including alternative angles, depths, sizes, and location with engineered defects to showcase fill tube effects during an implosion. Furthermore, testing has shown that these CFTAs and HGRs have survived all fabrication and transport to from General Atomics to Lawrence Livermore National Laboratory. These assemblies have also passed cryogenic testing at General Atomics. An overview of alternative CFTA designs, fabrication methods and developments will be presented.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2]
  1. General Atomics, San Diego, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Grant/Contract Number:
NA0001808; AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Fusion Science and Technology
Additional Journal Information:
Journal Volume: 73; Journal Issue: 2; Journal ID: ISSN 1536-1055
Publisher:
American Nuclear Society
Research Org:
General Atomics, San Diego, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
OSTI Identifier:
1402462

Crippen, Jay W., Alfonso, E. L., Rice, Neal G., Kong, C., McInnis, M., and Felker, S.. Novel Capsule Fill Tube Assemblies for the Hydrodynamic Growth Radiography Targets. United States: N. p., Web. doi:10.1080/15361055.2017.1391661.
Crippen, Jay W., Alfonso, E. L., Rice, Neal G., Kong, C., McInnis, M., & Felker, S.. Novel Capsule Fill Tube Assemblies for the Hydrodynamic Growth Radiography Targets. United States. doi:10.1080/15361055.2017.1391661.
Crippen, Jay W., Alfonso, E. L., Rice, Neal G., Kong, C., McInnis, M., and Felker, S.. 2018. "Novel Capsule Fill Tube Assemblies for the Hydrodynamic Growth Radiography Targets". United States. doi:10.1080/15361055.2017.1391661.
@article{osti_1402462,
title = {Novel Capsule Fill Tube Assemblies for the Hydrodynamic Growth Radiography Targets},
author = {Crippen, Jay W. and Alfonso, E. L. and Rice, Neal G. and Kong, C. and McInnis, M. and Felker, S.},
abstractNote = {Capsule Fill Tube Assemblies (CFTAs) consist of an ablator capsule and fill tube via a laser drilled funnel hole. This hole then tapers from 17 μm diameter at the outer surface of the ablator capsule to less than 5 μm diameter on the inside of the capsule over approximately 200 μm of wall thickness. Demand for better understanding of the fill tube perturbation during the capsule implosion has driven advancements in the fill tube design. Engineering efforts have been made on Hydrodynamic Growth Radiography Assemblies (HGRs) using multiple tube design variations, including alternative angles, depths, sizes, and location with engineered defects to showcase fill tube effects during an implosion. Furthermore, testing has shown that these CFTAs and HGRs have survived all fabrication and transport to from General Atomics to Lawrence Livermore National Laboratory. These assemblies have also passed cryogenic testing at General Atomics. An overview of alternative CFTA designs, fabrication methods and developments will be presented.},
doi = {10.1080/15361055.2017.1391661},
journal = {Fusion Science and Technology},
number = 2,
volume = 73,
place = {United States},
year = {2018},
month = {1}
}