Performance and calibration of a neutron image intensifier tube based real-time radiography system

M. R. Deinert; C. W. Lowe; J. Y. Parlange; K. Ünlü; K. B. Cady

doi:10.1109/TNS.2005.843644

Performance and calibration of a neutron image intensifier tube based real-time radiography system

M. R. Deinert, C. W. Lowe, J. Y. Parlange, K. Ünlü, K. B. Cady

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Image calibration is central to extending the capabilities of neutron radiography beyond mere visualization. However, the effects of scattered neutrons and variations in background image intensity adversely affect quantitative radiography. We describe the calibration of a real-time neutron radiography system that limits these effects and which is applicable to systems with variable digitizer gain and offset. A neutron image intensifier tube coupled to a vidicon camera with a capture rate of 30 frames/s was used. The system could account for 10 ml of water entering the field of view to within 2% and could measure the variation in thickness of a graphite wedge to within 2.3%. The spatial resolution was 450 μm for a field of view of 410 cm². The image persistence half life was ∼0.3 s and the system was functional for quantitative radiography with neutron fluxes above ∼ 5 * 10 ⁵ n/cm²/s.

Original language	English (US)
Pages (from-to)	349-355
Number of pages	7
Journal	IEEE Transactions on Nuclear Science
Volume	52
Issue number	1 II
DOIs	https://doi.org/10.1109/TNS.2005.843644
State	Published - Feb 2005

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Electrical and Electronic Engineering

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10.1109/TNS.2005.843644

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title = "Performance and calibration of a neutron image intensifier tube based real-time radiography system",

abstract = "Image calibration is central to extending the capabilities of neutron radiography beyond mere visualization. However, the effects of scattered neutrons and variations in background image intensity adversely affect quantitative radiography. We describe the calibration of a real-time neutron radiography system that limits these effects and which is applicable to systems with variable digitizer gain and offset. A neutron image intensifier tube coupled to a vidicon camera with a capture rate of 30 frames/s was used. The system could account for 10 ml of water entering the field of view to within 2% and could measure the variation in thickness of a graphite wedge to within 2.3%. The spatial resolution was 450 μm for a field of view of 410 cm2. The image persistence half life was ∼0.3 s and the system was functional for quantitative radiography with neutron fluxes above ∼ 5 * 10 5 n/cm2/s.",

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AU - Lowe, C. W.

AU - Parlange, J. Y.

AU - Ünlü, K.

AU - Cady, K. B.

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AB - Image calibration is central to extending the capabilities of neutron radiography beyond mere visualization. However, the effects of scattered neutrons and variations in background image intensity adversely affect quantitative radiography. We describe the calibration of a real-time neutron radiography system that limits these effects and which is applicable to systems with variable digitizer gain and offset. A neutron image intensifier tube coupled to a vidicon camera with a capture rate of 30 frames/s was used. The system could account for 10 ml of water entering the field of view to within 2% and could measure the variation in thickness of a graphite wedge to within 2.3%. The spatial resolution was 450 μm for a field of view of 410 cm2. The image persistence half life was ∼0.3 s and the system was functional for quantitative radiography with neutron fluxes above ∼ 5 * 10 5 n/cm2/s.

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Performance and calibration of a neutron image intensifier tube based real-time radiography system

Abstract

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