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Title: Surface oxygen micropatterns on glow discharge polymer targets by photo irradiation

Abstract

Recent simulations predict surface oxygen may be a significant source of disruptive perturbations in the implosion process of glow-discharge polymers (GDP) ablators at the National Ignition Facility. GDP material held in ambient atmospheric conditions showed an increase in mass when stored in light transparent containers, which suggests that photo exposure is a driving force for oxygen absorption. To investigate if surface oxygen is a contributing factor of disruptive perturbations during implosion, we developed a method to imprint a periodic micropattern of oxygen on the surface of GDP and used it to fabricate a flat sample for empirical testing.

Authors:
 [1];  [2]; ORCiD logo [2];  [1];  [1]; ORCiD logo [1];  [2]; ORCiD logo [1]
  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:
1240959
Alternate Identifier(s):
OSTI ID: 1421162
Report Number(s):
LLNL-JRNL-677957
Journal ID: ISSN 0021-8979; JAPIAU
Grant/Contract Number:  
AC52-07NA27344; NA0001808
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 119; Journal Issue: 8; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Reynolds, Hannah, Baxamusa, Salmaan, Haan, Steven W., Fitzsimmons, Paul, Carlson, Lane, Farrell, Mike, Nikroo, Abbas, and Watson, Brian J. Surface oxygen micropatterns on glow discharge polymer targets by photo irradiation. United States: N. p., 2016. Web. doi:10.1063/1.4942219.
Reynolds, Hannah, Baxamusa, Salmaan, Haan, Steven W., Fitzsimmons, Paul, Carlson, Lane, Farrell, Mike, Nikroo, Abbas, & Watson, Brian J. Surface oxygen micropatterns on glow discharge polymer targets by photo irradiation. United States. https://doi.org/10.1063/1.4942219
Reynolds, Hannah, Baxamusa, Salmaan, Haan, Steven W., Fitzsimmons, Paul, Carlson, Lane, Farrell, Mike, Nikroo, Abbas, and Watson, Brian J. Wed . "Surface oxygen micropatterns on glow discharge polymer targets by photo irradiation". United States. https://doi.org/10.1063/1.4942219. https://www.osti.gov/servlets/purl/1240959.
@article{osti_1240959,
title = {Surface oxygen micropatterns on glow discharge polymer targets by photo irradiation},
author = {Reynolds, Hannah and Baxamusa, Salmaan and Haan, Steven W. and Fitzsimmons, Paul and Carlson, Lane and Farrell, Mike and Nikroo, Abbas and Watson, Brian J.},
abstractNote = {Recent simulations predict surface oxygen may be a significant source of disruptive perturbations in the implosion process of glow-discharge polymers (GDP) ablators at the National Ignition Facility. GDP material held in ambient atmospheric conditions showed an increase in mass when stored in light transparent containers, which suggests that photo exposure is a driving force for oxygen absorption. To investigate if surface oxygen is a contributing factor of disruptive perturbations during implosion, we developed a method to imprint a periodic micropattern of oxygen on the surface of GDP and used it to fabricate a flat sample for empirical testing.},
doi = {10.1063/1.4942219},
url = {https://www.osti.gov/biblio/1240959}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 8,
volume = 119,
place = {United States},
year = {2016},
month = {2}
}

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Free Publicly Available Full Text
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Cited by: 2 works
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Works referenced in this record:

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    Works referencing / citing this record:

    Improving ICF implosion performance with alternative capsule supports
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    Hydrodynamic instability seeding by oxygen nonuniformities in glow discharge polymer inertial fusion ablators
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    Probing the seeding of hydrodynamic instabilities from nonuniformities in ablator materials using 2D velocimetry
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