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Title: Machining Specific Fourier Power Spectrum Profiles into Plastics for High Energy Density Physics Experiments [Machining Specific Fourier Power Spectrum Profiles into Plastics for HEDP Experiments]

Abstract

In this paper, the High Energy Density Physics program at Los Alamos National Laboratory (LANL) has had a multiyear campaign to verify the predictive capability of the interface evolution of shock propagation through different profiles machined into the face of a plastic package with an iodine-doped plastic center region. These experiments varied the machined surface from a simple sine wave to a double sine wave and finally to a multitude of different profiles with power spectrum ranges and shapes to verify LANL’s simulation capability. The MultiMode-A profiles had a band-pass flat region of the power spectrum, while the MultiMode-B profile had two band-pass flat regions. Another profile of interest was the 1-Peak profile, a band-pass concept with a spike to one side of the power spectrum. All these profiles were machined in flat and tilted orientations of 30 and 60 deg. Tailor-made machining profiles, supplied by experimental physicists, were compared to actual machined surfaces, and Fourier power spectra were compared to see the reproducibility of the machining process over the frequency ranges that physicists require.

Authors:
ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
OSTI Identifier:
1419757
Report Number(s):
LA-UR-17-25930
Journal ID: ISSN 1536-1055; TRN: US1801389
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Fusion Science and Technology
Additional Journal Information:
Journal Volume: 73; Journal Issue: 3; Journal ID: ISSN 1536-1055
Publisher:
American Nuclear Society
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; machining fourier power spectrum

Citation Formats

Schmidt, Derek William, Cardenas, Tana, Doss, Forrest W., Di Stefano, Carlos, Donovan, Patrick Mark, Fierro, Frank, Flippo, Kirk A., Martinez, John Israel, and Rasmus, Alex Martin. Machining Specific Fourier Power Spectrum Profiles into Plastics for High Energy Density Physics Experiments [Machining Specific Fourier Power Spectrum Profiles into Plastics for HEDP Experiments]. United States: N. p., 2018. Web. doi:10.1080/15361055.2017.1406235.
Schmidt, Derek William, Cardenas, Tana, Doss, Forrest W., Di Stefano, Carlos, Donovan, Patrick Mark, Fierro, Frank, Flippo, Kirk A., Martinez, John Israel, & Rasmus, Alex Martin. Machining Specific Fourier Power Spectrum Profiles into Plastics for High Energy Density Physics Experiments [Machining Specific Fourier Power Spectrum Profiles into Plastics for HEDP Experiments]. United States. doi:10.1080/15361055.2017.1406235.
Schmidt, Derek William, Cardenas, Tana, Doss, Forrest W., Di Stefano, Carlos, Donovan, Patrick Mark, Fierro, Frank, Flippo, Kirk A., Martinez, John Israel, and Rasmus, Alex Martin. Mon . "Machining Specific Fourier Power Spectrum Profiles into Plastics for High Energy Density Physics Experiments [Machining Specific Fourier Power Spectrum Profiles into Plastics for HEDP Experiments]". United States. doi:10.1080/15361055.2017.1406235. https://www.osti.gov/servlets/purl/1419757.
@article{osti_1419757,
title = {Machining Specific Fourier Power Spectrum Profiles into Plastics for High Energy Density Physics Experiments [Machining Specific Fourier Power Spectrum Profiles into Plastics for HEDP Experiments]},
author = {Schmidt, Derek William and Cardenas, Tana and Doss, Forrest W. and Di Stefano, Carlos and Donovan, Patrick Mark and Fierro, Frank and Flippo, Kirk A. and Martinez, John Israel and Rasmus, Alex Martin},
abstractNote = {In this paper, the High Energy Density Physics program at Los Alamos National Laboratory (LANL) has had a multiyear campaign to verify the predictive capability of the interface evolution of shock propagation through different profiles machined into the face of a plastic package with an iodine-doped plastic center region. These experiments varied the machined surface from a simple sine wave to a double sine wave and finally to a multitude of different profiles with power spectrum ranges and shapes to verify LANL’s simulation capability. The MultiMode-A profiles had a band-pass flat region of the power spectrum, while the MultiMode-B profile had two band-pass flat regions. Another profile of interest was the 1-Peak profile, a band-pass concept with a spike to one side of the power spectrum. All these profiles were machined in flat and tilted orientations of 30 and 60 deg. Tailor-made machining profiles, supplied by experimental physicists, were compared to actual machined surfaces, and Fourier power spectra were compared to see the reproducibility of the machining process over the frequency ranges that physicists require.},
doi = {10.1080/15361055.2017.1406235},
journal = {Fusion Science and Technology},
issn = {1536-1055},
number = 3,
volume = 73,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Figure 1 Figure 1: Oblique shock overall target design

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Works referenced in this record:

Linear Sine Wave Profiling to Machine Instability Targets
journal, September 2016

  • Schmidt, D. W.; Martinez, J. I.
  • Fusion Science and Technology, Vol. 70, Issue 2
  • DOI: 10.13182/FST15-225

    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.