Reconstruction of 2D x-ray radiographs at the National Ignition Facility using pinhole tomography (invited)

Rygg, J. R.; Barrios, M. A.; Benedetti, L. R.; Döppner, T.; Izumi, N.; Jones, O.; Khan, S. F.; Ma, T.; Nagel, S. R.; Pak, A.; Tommasini, R.; Bradley, D. K.; Town, R. P. J.

doi:10.1063/1.4890395

Title: Reconstruction of 2D x-ray radiographs at the National Ignition Facility using pinhole tomography (invited)

Journal Article · Sat Nov 15 00:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4890395· OSTI ID:22308644

Rygg, J. R.; Barrios, M. A.; Benedetti, L. R.; Döppner, T.; Izumi, N.; Jones, O.; Khan, S. F.; Ma, T.; Nagel, S. R.; Pak, A.; Tommasini, R.; Bradley, D. K.; Town, R. P. J. ^[1]

Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

Two-dimensional radiographs of imploding fusion capsules are obtained at the National Ignition Facility by projection through a pinhole array onto a time-gated framing camera. Parallax among images in the image array makes it possible to distinguish contributions from the capsule and from the backlighter, permitting correction of backlighter non-uniformities within the capsule radiograph. Furthermore, precise determination of the imaging system geometry and implosion velocity enables combination of multiple images to reduce signal-to-noise and discover new capsule features.

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OSTI ID:: 22308644

Journal Information:: Review of Scientific Instruments, Vol. 85, Issue 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748

Country of Publication:: United States

Language:: English

References (8)

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Cited By (5)

Tent-induced perturbations on areal density of implosions at the National Ignition Facilitya) Tommasini, R.; Field, J. E.; Hammel, B. A. Physics of Plasmas, Vol. 22, Issue 5 https://doi.org/10.1063/1.4921218	journal	May 2015
Cryogenic tritium-hydrogen-deuterium and deuterium-tritium layer implosions with high density carbon ablators in near-vacuum hohlraums Meezan, N. B.; Berzak Hopkins, L. F.; Le Pape, S. Physics of Plasmas, Vol. 22, Issue 6 https://doi.org/10.1063/1.4921947	journal	June 2015
Hydrodynamic instability growth of three-dimensional, “native-roughness” modulations in x-ray driven, spherical implosions at the National Ignition Facility Smalyuk, V. A.; Weber, S. V.; Casey, D. T. Physics of Plasmas, Vol. 22, Issue 7 https://doi.org/10.1063/1.4926591	journal	July 2015
Improving ICF implosion performance with alternative capsule supports Weber, C. R.; Casey, D. T.; Clark, D. S. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4977536	journal	May 2017
Hydrodynamic instability growth of three-dimensional modulations in radiation-driven implosions with “low-foot” and “high-foot” drives at the National Ignition Facility Smalyuk, V. A.; Weber, C. R.; Robey, H. F. Physics of Plasmas, Vol. 24, Issue 4 https://doi.org/10.1063/1.4980002	journal	April 2017

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Title: Reconstruction of 2D x-ray radiographs at the National Ignition Facility using pinhole tomography (invited)

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