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Proceedings Paper

Novel scintillating fiber optics for digital radiography
Author(s): Piero L. Chirco; Martina Zanarini; Marta Rabini; G. Zambelli; Mara Giacometti; Elisabetta Querzola; Massimo Rossi; Franco Casali
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Paper Abstract

The use of conventional glass scintillators for x-ray imaging has been limited by the need of a severe trade-off between the detection efficiency of glasses, that is low if the incoming energy exceeds about one hundred keV for conventional glasses, and the achievable spatial resolution, that is greatly affected if the thickness of the glass is increased above 2 mm. Scintillating fiber optic detectors solve this problem thanks to their light guidance properties. A set of different scintillating fiber optic plates (SFOP) has been produced to optimally detect both low (up to 50 kVp) and high (up to some hundreds kVp) energy x-rays. These detectors are coupled to a fiber optic taper which drives the light to a CCD camera through a MCP image intensifier. Alternatively, a focusing lens is employed. The detectors have been used for image acquisitions for digital radiography in the medical field (particularly at the lower energies) and for nondestructive testings, with a particular interest for the preservation of the cultural heritage.

Paper Details

Date Published: 7 July 1997
PDF: 8 pages
Proc. SPIE 3115, Hard X-Ray and Gamma-Ray Detector Physics, Optics, and Applications, (7 July 1997); doi: 10.1117/12.277666
Show Author Affiliations
Piero L. Chirco, Univ. di Bologna and INFN (Italy)
Martina Zanarini, Univ. di Bologna and INFN (Italy)
Marta Rabini, Univ. di Bologna and INFN (Italy)
G. Zambelli, Univ. di Bologna and INFN (Italy)
Mara Giacometti, Univ. di Bologna and INFN (Italy)
Elisabetta Querzola, Univ. di Bologna and INFN (Italy)
Massimo Rossi, Univ. di Bologna and INFN (Italy)
Franco Casali, Univ. di Bologna and INFN (Italy)

Published in SPIE Proceedings Vol. 3115:
Hard X-Ray and Gamma-Ray Detector Physics, Optics, and Applications
Richard B. Hoover; F. Patrick Doty, Editor(s)

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