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Title: Fielding of a Time-Resolved Tomographic Diagnostic

Abstract

A diagnostic instrument has been developed for the acquisition of high-speed time-resolved images at the Dual-Axis Radiographic Hydrodynamic Test (DARHT) Facility at Los Alamos National Laboratory. The instrument was developed in order to create time histories of the electron beam. Four discrete optical subsystems view Cerenkov light generated at an x-ray target inside of a vacuum envelope. Each system employs cylindrical optics to image light in one direction and collapse light in the orthogonal direction. Each of the four systems images and collapses in unique axes, thereby capturing unique information. Light along the imaging axis is relayed via optical fiber to streak cameras. A computer is used to reconstruct the original image from the four optically collapsed images. Due to DARHT’s adverse environment, the instrument can be operated remotely to adjust optical parameters and contains a subsystem for remote calibration. The instrument was deployed and calibrated, and has been used to capture and reconstruct images. Matters of alignment, calibration, control, resolution, and adverse conditions will be discussed.

Authors:
Publication Date:
Research Org.:
National Security Technologies, LLC
Sponsoring Org.:
USDOE National Nuclear Security Administration (NA)
OSTI Identifier:
939693
Report Number(s):
DOE/NV/25946-504
Journal ID: 0277-786X
DOE Contract Number:  
DE-AC52-06NA25946
Resource Type:
Conference
Journal Name:
Proceedings SPIE
Additional Journal Information:
Journal Volume: 7061; Conference: SPIE Optics and Photonics Conference; August 10-14, 2008; San Diego, CA
Publisher:
SPIE
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; fielding, tomography, adverse environment, instrumentation, high-speed imaging

Citation Formats

Daniel Frayer, Brian Cox, Wendi Dreesen, Douglas Johnson, Mike Jones, Morris Kaufman. Fielding of a Time-Resolved Tomographic Diagnostic. United States: N. p., 2008. Web. doi:10.1117/12.796636.
Daniel Frayer, Brian Cox, Wendi Dreesen, Douglas Johnson, Mike Jones, Morris Kaufman. Fielding of a Time-Resolved Tomographic Diagnostic. United States. doi:10.1117/12.796636.
Daniel Frayer, Brian Cox, Wendi Dreesen, Douglas Johnson, Mike Jones, Morris Kaufman. Thu . "Fielding of a Time-Resolved Tomographic Diagnostic". United States. doi:10.1117/12.796636. https://www.osti.gov/servlets/purl/939693.
@article{osti_939693,
title = {Fielding of a Time-Resolved Tomographic Diagnostic},
author = {Daniel Frayer, Brian Cox, Wendi Dreesen, Douglas Johnson, Mike Jones, Morris Kaufman},
abstractNote = {A diagnostic instrument has been developed for the acquisition of high-speed time-resolved images at the Dual-Axis Radiographic Hydrodynamic Test (DARHT) Facility at Los Alamos National Laboratory. The instrument was developed in order to create time histories of the electron beam. Four discrete optical subsystems view Cerenkov light generated at an x-ray target inside of a vacuum envelope. Each system employs cylindrical optics to image light in one direction and collapse light in the orthogonal direction. Each of the four systems images and collapses in unique axes, thereby capturing unique information. Light along the imaging axis is relayed via optical fiber to streak cameras. A computer is used to reconstruct the original image from the four optically collapsed images. Due to DARHT’s adverse environment, the instrument can be operated remotely to adjust optical parameters and contains a subsystem for remote calibration. The instrument was deployed and calibrated, and has been used to capture and reconstruct images. Matters of alignment, calibration, control, resolution, and adverse conditions will be discussed.},
doi = {10.1117/12.796636},
journal = {Proceedings SPIE},
number = ,
volume = 7061,
place = {United States},
year = {2008},
month = {9}
}

Conference:
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