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The goal in medical X-ray imaging is to use the lowest dose of X-ray radiation as is reasonable to get an adequate image. X-ray images have a unique set of characteristics related to the low number of photons used in their production. Methods that use the limited amount of radiation can translate into lower dose and/or better images more efficiently.

Our research includes the following areas of study:

  • the study of the properties of direct and indirect X-ray detection materials and phosphors
  • the development of methods of digitizing the charge image captured in a selenium layer
  • methods of digitally processing X-ray images
  • methods of modulating the X-ray source to provide better image characteristics

Ongoing projects

  1. The physics of a-Se
    Alla Reznik
  2. Cardiac imaging and X-ray coronary angiography
    Normand Robert
  3. Digital flat-panel detector with avalanche gain for low-dose radiography and fluoroscopy
    Matthew Wronski, Alla Reznik, Giovanni DeCrescenzo, Justin Bimbrahw
  4. Detector physics in photoconductor and phosphor materials
    Winston Chi Ji
  5. Nanostructures for biomedical imaging
    Naomi Matsuura, Ivan Gorelikov, Kelvin Wan, Siqi Zhu
  6. Positron emission mammography
    Alla Reznik
  7. Photostimulable phosphors
    Giovanni De Crescenzo, Kuo Yan, Kristina Watt

  8. X-ray light valve (XLV)
    Robert MacDougall
  9. XMR: Fusion of MRI and X-ray modalities
    John Bracken, Philip Komljenovic, David Green, Giovanni DeCrescenzo