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Title: A multi-wavelength, high-contrast contact radiography system for the study of low density aerogel foams

Abstract

A multi wavelength, high contrast contact radiography system has been developed to characterize density variations in ultra-low density aerogel foams. These foams are used to generate a ramped pressure drive in materials strength experiments at the National Ignition Facility (NIF) and require precision characterization in order to reduce errors in measurements. The system was used to characterize density variations in carbon and silicon based aerogels to ~10.3% accuracy with ~30 μm spatial resolution. The system description, performance and measurement results collected using a 17.8 mg/cc carbon based JX–6 (C 20H 30) aerogel are discussed in this manuscript.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [3];  [3];  [3];  [3];  [3];  [1];  [3];  [3]
  1. National Security Technologies, LLC. (NSTec), Mercury, NV (United States)
  2. University of California at Berkeley; University of California at Berkeley
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Nevada Test Site/National Security Technologies, LLC (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1358318
Report Number(s):
DOE/NV/25946-2663; LLNL-JRNL-719698
Journal ID: ISSN 0034-6748
Grant/Contract Number:
AC52-06NA25946; AC52-07NA27344
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 7; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; low-density aerogel foams, multi-wavelength, high-contrast contact, radiography system, charge coupled devices, spatial resolution, anodes; 42 ENGINEERING

Citation Formats

Opachich, Y.P., Koch, J.A., Haugh, M. J., Romano, E., Lee, J., Huffman, E., Weber, F. A., Bowers, J. W., Benedetti, L. R., Wilson, M., Prisbrey, S.T., Wehrenberg, C. E., Baumann, T. F., Lenhardt, J. M., Cook, A., Arsenlis, A., and Remington, B. A. A multi-wavelength, high-contrast contact radiography system for the study of low density aerogel foams. United States: N. p., 2017. Web. doi:10.1063/1.4958826.
Opachich, Y.P., Koch, J.A., Haugh, M. J., Romano, E., Lee, J., Huffman, E., Weber, F. A., Bowers, J. W., Benedetti, L. R., Wilson, M., Prisbrey, S.T., Wehrenberg, C. E., Baumann, T. F., Lenhardt, J. M., Cook, A., Arsenlis, A., & Remington, B. A. A multi-wavelength, high-contrast contact radiography system for the study of low density aerogel foams. United States. doi:10.1063/1.4958826.
Opachich, Y.P., Koch, J.A., Haugh, M. J., Romano, E., Lee, J., Huffman, E., Weber, F. A., Bowers, J. W., Benedetti, L. R., Wilson, M., Prisbrey, S.T., Wehrenberg, C. E., Baumann, T. F., Lenhardt, J. M., Cook, A., Arsenlis, A., and Remington, B. A. 2017. "A multi-wavelength, high-contrast contact radiography system for the study of low density aerogel foams". United States. doi:10.1063/1.4958826. https://www.osti.gov/servlets/purl/1358318.
@article{osti_1358318,
title = {A multi-wavelength, high-contrast contact radiography system for the study of low density aerogel foams},
author = {Opachich, Y.P. and Koch, J.A. and Haugh, M. J. and Romano, E. and Lee, J. and Huffman, E. and Weber, F. A. and Bowers, J. W. and Benedetti, L. R. and Wilson, M. and Prisbrey, S.T. and Wehrenberg, C. E. and Baumann, T. F. and Lenhardt, J. M. and Cook, A. and Arsenlis, A. and Remington, B. A.},
abstractNote = {A multi wavelength, high contrast contact radiography system has been developed to characterize density variations in ultra-low density aerogel foams. These foams are used to generate a ramped pressure drive in materials strength experiments at the National Ignition Facility (NIF) and require precision characterization in order to reduce errors in measurements. The system was used to characterize density variations in carbon and silicon based aerogels to ~10.3% accuracy with ~30 μm spatial resolution. The system description, performance and measurement results collected using a 17.8 mg/cc carbon based JX–6 (C20H30) aerogel are discussed in this manuscript.},
doi = {10.1063/1.4958826},
journal = {Review of Scientific Instruments},
number = 7,
volume = 87,
place = {United States},
year = 2017,
month = 7
}

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  • Cited by 1
  • A multi wavelength, high contrast contact radiography system has been developed to characterize density variations in ultra-low density aerogel foams. These foams are used to generate a ramped pressure drive in materials strength experiments at the National Ignition Facility (NIF) and require precision characterization in order to reduce errors in measurements. The system was used to characterize density variations in carbon and silicon based aerogels to ~10.3% accuracy with ~30 μm spatial resolution. The system description, performance and measurement results collected using a 17.8 mg/cc carbon based JX–6 (C 20H 30) aerogel are discussed in this manuscript.
    Cited by 1
  • A multi-wavelength, high contrast contact radiography system has been developed to characterize density variations in ultra-low density aerogel foams. These foams are used to generate a ramped pressure drive in materials strength experiments at the National Ignition Facility and require precision characterization in order to reduce errors in measurements. The system was used to characterize density variations in carbon and silicon based aerogels to ∼10.3% accuracy with ∼30 μm spatial resolution. The system description, performance, and measurement results collected using a 17.8 mg/cc carbon based JX–6 (C{sub 20}H{sub 30}) aerogel are discussed in this manuscript.
  • Knowledge of the density of aerogel foams used in high energy density physics experiments is crucial for simulating and understanding the results of experiments. An average density for the foams is gravimetrically determined, but provides no information on the uniformity of the density. X-ray radiography is used to determine the density uniformity of the foams and the average density of the foams. A comparison between a monochromatic and polychromatic method of determining the density from the x-ray radiography is performed and compared to the gravimetric results.
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