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Title: Aperture Tolerances for Neutron-Imaging Systems in Inertial Confinement Fusion

Abstract

Neutron imaging systems are being considered as an ignition diagnostic for the National Ignition Facility (NIF) [Hogan et al. Nucl. Fusion 41, 567 (2001)]. Given the importance of these systems, a neutron-imaging design tool is being used to quantify the effects of aperture fabrication and alignment tolerances on reconstructed neutron images for inertial confinement fusion. The simulations indicate that alignment tolerances of more than 1 mrad would introduce measurable features in a reconstructed image for both pinholes and penumbral aperture systems. These simulations further show that penumbral apertures are several times less sensitive to fabrication errors than pinhole apertures.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE
OSTI Identifier:
927582
Report Number(s):
DE/NA/28302-820
Journal ID: ISSN 0034-6748; RSINAK; 2007-176; 1793; TRN: US0804820
DOE Contract Number:  
FC52-08NA28302
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 79; Journal Issue: 2; Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ALIGNMENT; APERTURES; DESIGN; FABRICATION; IGNITION; INERTIAL CONFINEMENT; NEUTRONS; US NATIONAL IGNITION FACILITY

Citation Formats

Ghilea, M C, Sangster, T C, Meyerhofer, D D, Lerche, R A, and Disdier, L. Aperture Tolerances for Neutron-Imaging Systems in Inertial Confinement Fusion. United States: N. p., 2008. Web. doi:10.1063/1.2839023.
Ghilea, M C, Sangster, T C, Meyerhofer, D D, Lerche, R A, & Disdier, L. Aperture Tolerances for Neutron-Imaging Systems in Inertial Confinement Fusion. United States. https://doi.org/10.1063/1.2839023
Ghilea, M C, Sangster, T C, Meyerhofer, D D, Lerche, R A, and Disdier, L. 2008. "Aperture Tolerances for Neutron-Imaging Systems in Inertial Confinement Fusion". United States. https://doi.org/10.1063/1.2839023.
@article{osti_927582,
title = {Aperture Tolerances for Neutron-Imaging Systems in Inertial Confinement Fusion},
author = {Ghilea, M C and Sangster, T C and Meyerhofer, D D and Lerche, R A and Disdier, L},
abstractNote = {Neutron imaging systems are being considered as an ignition diagnostic for the National Ignition Facility (NIF) [Hogan et al. Nucl. Fusion 41, 567 (2001)]. Given the importance of these systems, a neutron-imaging design tool is being used to quantify the effects of aperture fabrication and alignment tolerances on reconstructed neutron images for inertial confinement fusion. The simulations indicate that alignment tolerances of more than 1 mrad would introduce measurable features in a reconstructed image for both pinholes and penumbral aperture systems. These simulations further show that penumbral apertures are several times less sensitive to fabrication errors than pinhole apertures.},
doi = {10.1063/1.2839023},
url = {https://www.osti.gov/biblio/927582}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 2,
volume = 79,
place = {United States},
year = {2008},
month = {4}
}