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 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.
authors.affiliation: National Security Technologies, LLC, Livermore, California 94550, USA.
authors.forename: Y P
authors.initials: YP
authors.lastname: Opachich
authors.affiliation: National Security Technologies, LLC, Livermore, California 94550, USA.
authors.forename: J A
authors.initials: JA
authors.lastname: Koch
authors.affiliation: National Security Technologies, LLC, Livermore, California 94550, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Haugh
authors.affiliation: National Security Technologies, LLC, Livermore, California 94550, USA.
authors.forename: E
authors.initials: E
authors.lastname: Romano
authors.affiliation: National Security Technologies, LLC, Livermore, California 94550, USA.
authors.forename: J J
authors.initials: JJ
authors.lastname: Lee
authors.affiliation: National Security Technologies, LLC, Livermore, California 94550, USA.
authors.forename: E
authors.initials: E
authors.lastname: Huffman
authors.affiliation: National Security Technologies, LLC, Livermore, California 94550, USA.
authors.forename: F A
authors.initials: FA
authors.lastname: Weber
authors.affiliation: National Security Technologies, LLC, Livermore, California 94550, USA.
authors.forename: J W
authors.initials: JW
authors.lastname: Bowers
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: L R
authors.initials: LR
authors.lastname: Benedetti
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: M
authors.initials: M
authors.lastname: Wilson
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: S T
authors.initials: ST
authors.lastname: Prisbrey
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: C E
authors.initials: CE
authors.lastname: Wehrenberg
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: T F
authors.initials: TF
authors.lastname: Baumann
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Lenhardt
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: A
authors.initials: A
authors.lastname: Cook
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: A
authors.initials: A
authors.lastname: Arsenlis
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: H-S
authors.initials: HS
authors.lastname: Park
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
authors.forename: B A
authors.initials: BA
authors.lastname: Remington