High-resolution computed radiography by scanned luminescent toner xeroradiography

John W. May; Anthony Richard Lubinsky

doi:10.1117/12.154602

14 September 1993 High-resolution computed radiography by scanned luminescent toner xeroradiography

John W. May, Anthony Richard Lubinsky

Proceedings Volume 1896, Medical Imaging 1993: Physics of Medical Imaging; (1993) https://doi.org/10.1117/12.154602
Event: Medical Imaging 1993, 1993, Newport Beach, CA, United States

Abstract

A new computed radiography system is described in which a charged selenium photoconductive plate is exposed to x-rays to create an electrostatic latent image, developed with a luminescent toner, and scanned with a stimulating laser beam to produce emitted light, which is filtered and detected. The resulting electronic signals are processed, and converted to hard copy using a laser film printer. The system is characterized by high x-ray sensitivity and by very high spatial resolution, which makes it particularly suitable for applications such as mammography and bone radiography. The image luminescence is bright and its decay time is extremely short, enabling rapid scanning with an inexpensive laser source. Also, the electronic capture of image data permits enhancement of the displayed contrast of image structures by image processing techniques.

Citation Download Citation

John W. May and Anthony Richard Lubinsky "High-resolution computed radiography by scanned luminescent toner xeroradiography", Proc. SPIE 1896, Medical Imaging 1993: Physics of Medical Imaging, (14 September 1993); https://doi.org/10.1117/12.154602

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