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Title: Large Format Radiographic Imaging

Abstract

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.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Bechtel Nevada Corp. (US); Los Alamos National Lab., NM (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
9759
Report Number(s):
DOE/NV/11718-357
TRN: US0103191
DOE Contract Number:  
AC08-96NV11718
Resource Type:
Conference
Resource Relation:
Conference: 44th Annual International Society for Optical Engineering Meeting, Denver, CO (US), 07/19/1999--07/23/1999; Other Information: PBD: 1 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; INDUSTRIAL RADIOGRAPHY; CAMERAS; DATA ACQUISITION SYSTEMS; FIBER OPTICS; PHOSPHORS; RECORDING SYSTEMS; SENSITIVITY; SIGNAL-TO-NOISE RATIO; PERFORMANCE; RADIOGRAPHY; IMAGING; ELECTRO-OPTICS; CCD CAMERA; SCINTILLATOR; IMAGE INTENSIFIER

Citation Formats

J. S. Rohrer, Lacey Stewart, M. D. Wilke, N. S. King, S. A Baker, and Wilfred Lewis. Large Format Radiographic Imaging. United States: N. p., 1999. Web.
J. S. Rohrer, Lacey Stewart, M. D. Wilke, N. S. King, S. A Baker, & Wilfred Lewis. Large Format Radiographic Imaging. United States.
J. S. Rohrer, Lacey Stewart, M. D. Wilke, N. S. King, S. A Baker, and Wilfred Lewis. Sun . "Large Format Radiographic Imaging". United States. https://www.osti.gov/servlets/purl/9759.
@article{osti_9759,
title = {Large Format Radiographic Imaging},
author = {J. S. Rohrer and Lacey Stewart and M. D. Wilke and N. S. King and S. A Baker and Wilfred Lewis},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Aug 01 00:00:00 EDT 1999},
month = {Sun Aug 01 00:00:00 EDT 1999}
}

Conference:
Other availability
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