Progress in gas detector technology for medical imaging research

George C. Giakos; S. Chowdhury; B. Pillai; P. Ghotra; S. Vedantham; A. Dasgupta; Frank A. DiBianca; Sreenivas Devidas; Robert J. Endorf

Progress in gas detector technology for medical imaging research

George C. Giakos, S. Chowdhury, B. Pillai, P. Ghotra, S. Vedantham, A. Dasgupta, Frank A. DiBianca, Sreenivas Devidas, Robert J. Endorf

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The x-ray capture, conversion into charge carriers, ion transport mechanisms and image formation mechanisms within a high-gas pressure digital radiographic system, operating up to 60 atm., are presented and analyzed. In detail, the physics of the high-pressure KCD imaging detectors is exposed, analyzed and related to the detector and image quality parameters. Specifically, this study indicates that ion diffusion cannot account for all the experimental observations. It advances the hypothesis that, at sufficiently high pressures, formation of molecular clusters with narrowed mobility distribution take place, through energy exchange mechanism, with local potential forces such that they compensate the space charge distortion of the applied field strength.

Original language	English (US)
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Editors	Richard L. Van Metter, Jacob Beutel
Pages	771-780
Number of pages	10
State	Published - 1996
Externally published	Yes
Event	Medical Imaging 1996: Physics of Medical Imaging - Newport Beach, CA, USA Duration: Feb 11 1996 → Feb 13 1996

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	2708
ISSN (Print)	0277-786X

Other

Other	Medical Imaging 1996: Physics of Medical Imaging
City	Newport Beach, CA, USA
Period	2/11/96 → 2/13/96

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Cite this

Giakos, G. C., Chowdhury, S., Pillai, B., Ghotra, P., Vedantham, S., Dasgupta, A., DiBianca, F. A., Devidas, S., & Endorf, R. J. (1996). Progress in gas detector technology for medical imaging research. In R. L. Van Metter, & J. Beutel (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 771-780). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2708).

Progress in gas detector technology for medical imaging research. / Giakos, George C.; Chowdhury, S.; Pillai, B. et al.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / Richard L. Van Metter; Jacob Beutel. 1996. p. 771-780 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2708).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Giakos, GC, Chowdhury, S, Pillai, B, Ghotra, P, Vedantham, S, Dasgupta, A, DiBianca, FA, Devidas, S & Endorf, RJ 1996, Progress in gas detector technology for medical imaging research. in RL Van Metter & J Beutel (eds), Proceedings of SPIE - The International Society for Optical Engineering. Proceedings of SPIE - The International Society for Optical Engineering, vol. 2708, pp. 771-780, Medical Imaging 1996: Physics of Medical Imaging, Newport Beach, CA, USA, 2/11/96.

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AU - DiBianca, Frank A.

AU - Devidas, Sreenivas

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AB - The x-ray capture, conversion into charge carriers, ion transport mechanisms and image formation mechanisms within a high-gas pressure digital radiographic system, operating up to 60 atm., are presented and analyzed. In detail, the physics of the high-pressure KCD imaging detectors is exposed, analyzed and related to the detector and image quality parameters. Specifically, this study indicates that ion diffusion cannot account for all the experimental observations. It advances the hypothesis that, at sufficiently high pressures, formation of molecular clusters with narrowed mobility distribution take place, through energy exchange mechanism, with local potential forces such that they compensate the space charge distortion of the applied field strength.

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Progress in gas detector technology for medical imaging research

Abstract

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ASJC Scopus subject areas

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