Analysis and modeling of phase contrast radiography of gradient density laser targets

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

5 Scopus Citations
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Author(s)

  • Maurice B. Aufderheide III
  • William D. Brown
  • Alex V. Hamza
  • Hye-Sook Park
  • Harry E. Martz
  • Bruce A. Remington
  • John A. Rogers
  • Yun-Suk Nam

Detail(s)

Original languageEnglish
Pages (from-to)223-226
Journal / PublicationNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume579
Issue number1
Publication statusPublished - 21 Aug 2007
Externally publishedYes

Abstract

Laser experiments, such as those planned at the National Ignition Facility (NIF) and the Omega facility, use small targets with the goal of studying high-energy density physics and inertial confinement fusion. One particular application is a target with layers whose density changes in a carefully designed gradient (from 0.2 to 1.2 g/cm3) for use in isentropic compression experiments (ICE). We are nondestructively determining the density of these layers using two X-ray microscopes. Because of the many interfaces that comprise the layers, a plethora of X-ray phase contrast fringes appear in the images, leading to many radiographic and tomographic artifacts which compromise the ability to infer the density of the layer. In this paper, we describe how we are attacking this problem with a variety of radiographic standards and through radiographic simulation using the HADES radiographic simulation code. © 2007.

Research Area(s)

  • Gradient density laser targets, Hades simulation code, Isentropic compression, Phase-contrast microscopy, Radiographic simulation, X-ray phase effects

Bibliographic Note

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Citation Format(s)

Analysis and modeling of phase contrast radiography of gradient density laser targets. / Aufderheide III, Maurice B.; Brown, William D.; Hamza, Alex V.; Park, Hye-Sook; Martz, Harry E.; Remington, Bruce A.; Rogers, John A.; Jeon, Saekwoo; Nam, Yun-Suk.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 579, No. 1, 21.08.2007, p. 223-226.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review