Evaluation of the MTF for a-Si:H imaging arrays

John Yorkston; Larry E. Antonuk; N. Seraji; W. Huang; J. Siewerdsen; Y. El-Mohri

Evaluation of the MTF for a-Si:H imaging arrays

John Yorkston, Larry E. Antonuk, N. Seraji, W. Huang, J. Siewerdsen, Y. El-Mohri

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

Abstract

Hydrogenated amorphous silicon imaging arrays are being developed for numerous applications in medical imaging. Diagnostic and megavoltage images have previously been reported and a number of the intrinsic properties of the arrays have been investigated. This paper reports on the first attempt to characterize the intrinsic spatial resolution of the imaging pixels on a 450 μm pitch, n-i-p imaging array fabricated at Xerox P.A.R.C. The pre-sampled modulation transfer function was measured by scanning a approximately 25 μm wide slit of visible wavelength light across a pixel in both the DATA and FET directions. The results show that the response of the pixel in these orthogonal directions is well described by a simple model that accounts for asymmetries in the pixel response due to geometric aspects of the pixel design.

Original language	English (US)
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Editors	Rodney Shaw
Publisher	Publ by Society of Photo-Optical Instrumentation Engineers
Pages	141-149
Number of pages	9
ISBN (Print)	0819414581
State	Published - Dec 1 1994
Externally published	Yes
Event	Medical Imaging 1994: Physics of Medical Imaging - Newport Beach, CA, USA Duration: Feb 13 1994 → Feb 14 1994

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	2163
ISSN (Print)	0277-786X

Other

Other	Medical Imaging 1994: Physics of Medical Imaging
City	Newport Beach, CA, USA
Period	2/13/94 → 2/14/94

ASJC Scopus subject areas

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

Cite this

Yorkston, J., Antonuk, L. E., Seraji, N., Huang, W., Siewerdsen, J., & El-Mohri, Y. (1994). Evaluation of the MTF for a-Si:H imaging arrays. In R. Shaw (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 141-149). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2163). Publ by Society of Photo-Optical Instrumentation Engineers.

Evaluation of the MTF for a-Si:H imaging arrays. / Yorkston, John; Antonuk, Larry E.; Seraji, N. et al.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / Rodney Shaw. Publ by Society of Photo-Optical Instrumentation Engineers, 1994. p. 141-149 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2163).

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

Yorkston, J, Antonuk, LE, Seraji, N, Huang, W, Siewerdsen, J & El-Mohri, Y 1994, Evaluation of the MTF for a-Si:H imaging arrays. in R Shaw (ed.), Proceedings of SPIE - The International Society for Optical Engineering. Proceedings of SPIE - The International Society for Optical Engineering, vol. 2163, Publ by Society of Photo-Optical Instrumentation Engineers, pp. 141-149, Medical Imaging 1994: Physics of Medical Imaging, Newport Beach, CA, USA, 2/13/94.

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Evaluation of the MTF for a-Si:H imaging arrays

Abstract

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ASJC Scopus subject areas

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