A large area. High-resolution a-Si:H array for X-ray imaging

L. E. Antonuk, Y. El-Mohri, W. Huang, J. Siewerdsen, J. Yorkston, R. A. Street

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Scopus citations


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 127 μm, and an area of 19.5×24.4 cm2. The 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.

Original languageEnglish (US)
Title of host publicationAmorphous Silicon Technology - 1994
PublisherMaterials Research Society
Number of pages6
ISBN (Print)1558992367, 9781558992368
StatePublished - 1994
Externally publishedYes
Event1994 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 4 1994Apr 8 1994

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other1994 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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