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A Large Area, High-Resolution a-Si:H Array for X-Ray Imaging

Published online by Cambridge University Press:  16 February 2011

L.E. Antonuk ,
Y. El-Mohri ,
W. Huang ,
J. Siewerdsen ,
J. Yorkston  and
R.A. Street
L.E. Antonuk
Affiliation:
Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109
Y. El-Mohri
Affiliation:
Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109
W. Huang
Affiliation:
Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109
J. Siewerdsen
Affiliation:
Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109
J. Yorkston
Affiliation:
Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109
R.A. Street
Affiliation:
Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109
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Abstract

The development of a large area, high-resolution, a-Si:H x-ray imager is reported. The array has 1536×1920 pixels, a pixel pitch of 127μm, and an area of 19.5×24.4 cm2. Tne array is tailored to the high frame rate and high spatial resolution requirements of diagnostic x-ray imaging. The design of this array is presented and examples of x-ray images are illustrated. Initial Measurements of the sensor capacitance and pixel time constant properties are in good agreement with theoretical expectations. These results indicate that high-resolution arrays of this construction are capable of providing fluoroscopic images at rates of at least 30 frames per second.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 336: Symposium A – Amorphous Silicon Technology - 1994 , 1994 , 855
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

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