Fielding of a Time-Resolved Tomographic Diagnostic

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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 ... continued below

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Daniel Frayer, Brian Cox, Wendi Dreesen, Douglas Johnson, Mike Jones, Morris Kaufman September 11, 2008.

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Description

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.

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  • Journal Name: Proceedings SPIE; Journal Volume: 7061; Conference: SPIE Optics and Photonics Conference; August 10-14, 2008; San Diego, CA

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  • Report No.: DOE/NV/25946--504
  • Grant Number: DE-AC52-06NA25946
  • DOI: 10.1117/12.796636 | External Link
  • Office of Scientific & Technical Information Report Number: 939693
  • Archival Resource Key: ark:/67531/metadc902589

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • September 11, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 16, 2016, 12:37 p.m.

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Daniel Frayer, Brian Cox, Wendi Dreesen, Douglas Johnson, Mike Jones, Morris Kaufman. Fielding of a Time-Resolved Tomographic Diagnostic, article, September 11, 2008; (digital.library.unt.edu/ark:/67531/metadc902589/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.