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Title: Machining of Two-Dimensional Sinusoidal Defects on Ignition-Type Capsules to Study Hydrodynamic Instability at the National Ignition Facility

Abstract

Hydrodynamic instability growth and its effects on capsule implosion performance are being studied at the National Ignition Facility (NIF). Experimental results have shown that low-mode instabilities are the primary culprit for yield degradation. Ignition type capsules with machined 2D sinusoidal defects were used to measure low-mode hydrodynamic instability growth in the acceleration phase of the capsule implosion. The capsules were imploded using ignition-relevant laser pulses and the ablation-front modulation growth was measured using x-ray radiography. The experimentally measured growth was in good agreement with simulations.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [2]
  1. General Atomics, San Diego, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1342067
Report Number(s):
LLNL-JRNL-713918
Journal ID: ISSN 1536-1055
Grant/Contract Number:  
AC52-07NA27344; NA0001808
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Fusion Science and Technology
Additional Journal Information:
Journal Volume: 70; Journal Issue: 2; Journal ID: ISSN 1536-1055
Publisher:
American Nuclear Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING

Citation Formats

Giraldez, E. M., Hoppe Jr., M. L., Hoover, D. E., Nguyen, A. Q. L., Rice, N. G., Garcia, A. M., Huang, H., Mauldin, M. P., Farrell, M. P., Nikroo, A., and Smalyuk, V. Machining of Two-Dimensional Sinusoidal Defects on Ignition-Type Capsules to Study Hydrodynamic Instability at the National Ignition Facility. United States: N. p., 2016. Web. doi:10.13182/FST15-234.
Giraldez, E. M., Hoppe Jr., M. L., Hoover, D. E., Nguyen, A. Q. L., Rice, N. G., Garcia, A. M., Huang, H., Mauldin, M. P., Farrell, M. P., Nikroo, A., & Smalyuk, V. Machining of Two-Dimensional Sinusoidal Defects on Ignition-Type Capsules to Study Hydrodynamic Instability at the National Ignition Facility. United States. doi:10.13182/FST15-234.
Giraldez, E. M., Hoppe Jr., M. L., Hoover, D. E., Nguyen, A. Q. L., Rice, N. G., Garcia, A. M., Huang, H., Mauldin, M. P., Farrell, M. P., Nikroo, A., and Smalyuk, V. Thu . "Machining of Two-Dimensional Sinusoidal Defects on Ignition-Type Capsules to Study Hydrodynamic Instability at the National Ignition Facility". United States. doi:10.13182/FST15-234. https://www.osti.gov/servlets/purl/1342067.
@article{osti_1342067,
title = {Machining of Two-Dimensional Sinusoidal Defects on Ignition-Type Capsules to Study Hydrodynamic Instability at the National Ignition Facility},
author = {Giraldez, E. M. and Hoppe Jr., M. L. and Hoover, D. E. and Nguyen, A. Q. L. and Rice, N. G. and Garcia, A. M. and Huang, H. and Mauldin, M. P. and Farrell, M. P. and Nikroo, A. and Smalyuk, V.},
abstractNote = {Hydrodynamic instability growth and its effects on capsule implosion performance are being studied at the National Ignition Facility (NIF). Experimental results have shown that low-mode instabilities are the primary culprit for yield degradation. Ignition type capsules with machined 2D sinusoidal defects were used to measure low-mode hydrodynamic instability growth in the acceleration phase of the capsule implosion. The capsules were imploded using ignition-relevant laser pulses and the ablation-front modulation growth was measured using x-ray radiography. The experimentally measured growth was in good agreement with simulations.},
doi = {10.13182/FST15-234},
journal = {Fusion Science and Technology},
number = 2,
volume = 70,
place = {United States},
year = {Thu Jul 07 00:00:00 EDT 2016},
month = {Thu Jul 07 00:00:00 EDT 2016}
}

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Cited by: 1 work
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