Large Format Radiographic Imaging

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Radiographic imaging continues to be a key diagnostic in many areas at Los Alamos National Laboratory (LANL). Radiographic recording systems have taken on many form, from high repetition-rate, gated systems to film recording and storage phosphors. Some systems are designed for synchronization to an accelerator while others may be single shot or may record a frame sequence in a dynamic radiography experiment. While film recording remains a reliable standby in the radiographic community, there is growing interest in investigating electronic recording for many applications. The advantages of real time access to remote data acquisition are highly attractive. Cooled CCD camera ... continued below

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Rohrer, J. S.; Stewart, Lacey; Wilke, M. D.; King, N. S.; Baker, S. A & Lewis, Wilfred August 1999.

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Description

Radiographic imaging continues to be a key diagnostic in many areas at Los Alamos National Laboratory (LANL). Radiographic recording systems have taken on many form, from high repetition-rate, gated systems to film recording and storage phosphors. Some systems are designed for synchronization to an accelerator while others may be single shot or may record a frame sequence in a dynamic radiography experiment. While film recording remains a reliable standby in the radiographic community, there is growing interest in investigating electronic recording for many applications. The advantages of real time access to remote data acquisition are highly attractive. Cooled CCD camera systems are capable of providing greater sensitivity with improved signal-to-noise ratio. This paper begins with a review of performance characteristics of the Bechtel Nevada large format imaging system, a gated system capable of viewing scintillators up to 300 mm in diameter. We then examine configuration alternatives in lens coupled and fiber optically coupled electro-optical recording systems. Areas of investigation include tradeoffs between fiber optic and lens coupling, methods of image magnification, and spectral matching from scintillator to CCD camera. Key performance features discussed include field of view, resolution, sensitivity, dynamic range, and system noise characteristics.

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INIS; OSTI as DE00009759

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  • 44th Annual International Society for Optical Engineering Meeting, Denver, CO (US), 07/19/1999--07/23/1999

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  • Report No.: DOE/NV/11718--357
  • Grant Number: AC08-96NV11718
  • Office of Scientific & Technical Information Report Number: 9759
  • Archival Resource Key: ark:/67531/metadc794311

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Office of Scientific & Technical Information Technical Reports

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

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • August 1999

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  • Dec. 19, 2015, 7:14 p.m.

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  • Feb. 11, 2016, 9:23 p.m.

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Rohrer, J. S.; Stewart, Lacey; Wilke, M. D.; King, N. S.; Baker, S. A & Lewis, Wilfred. Large Format Radiographic Imaging, article, August 1999; Nevada. (digital.library.unt.edu/ark:/67531/metadc794311/: accessed January 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.