Evolution of the neutron imaging aperture

Valerie E. Fatherley; David N. Fittinghoff; Verena Geppert-Kleinrath; Gary P. Grim; H. Justin Jorgenson; John A. Oertel; Derek W. Schmidt; Petr L. Volegov; Carl Wilde

doi:10.1117/12.2322782

18 September 2018 Evolution of the neutron imaging aperture

Valerie E. Fatherley, David N. Fittinghoff, Verena Geppert-Kleinrath, Gary P. Grim, H. Justin Jorgenson, John A. Oertel, Derek W. Schmidt, Petr L. Volegov, Carl Wilde

Author Affiliations +

Proceedings Volume 10763, Radiation Detectors in Medicine, Industry, and National Security XIX; 107630Q (2018) https://doi.org/10.1117/12.2322782
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Neutron imagers based on thick apertures have become important diagnostics for the shape and size of the burning and cold fuel regions of inertial confinement fusion sources for high-energy density physics. Over time, the designs of these apertures have changed to meet the requirements of newer sources and taken advantage of improvements in manufacturing and alignment technology. In this paper, we discuss the evolution of thick apertures for neutron imaging at laser-driven ICF facilities. We describe the parameters that define the apertures and the apertures that have been fabricated and fielded. We also discuss the lessons learned with each iteration. We also discuss the impact that added features such as collinear or near-collinear γ-ray and x-ray imaging systems have had on the designs of the aperture arrays.

Conference Presentation

Citation Download Citation

Valerie E. Fatherley, David N. Fittinghoff, Verena Geppert-Kleinrath, Gary P. Grim, H. Justin Jorgenson, John A. Oertel, Derek W. Schmidt, Petr L. Volegov, and Carl Wilde "Evolution of the neutron imaging aperture", Proc. SPIE 10763, Radiation Detectors in Medicine, Industry, and National Security XIX, 107630Q (18 September 2018); https://doi.org/10.1117/12.2322782

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