ZnTe:O phosphor development for x-ray imaging applications

Phosphor Technology Center of Excellence, School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245
Applied Physics Letters (Impact Factor: 3.52). 04/2006; DOI: 10.1063/1.2185427
Source: IEEE Xplore

ABSTRACT An efficient ZnTe : O x-ray powder phosphor was prepared by a dry synthesis process using gaseous doping and etching medias. The x-ray luminescent properties were evaluated and compared to standard commercial phosphors exhibited an x-ray luminescent efficiency equivalent to 76% of Gd 2 O 2 S : Tb and an equal resolution of 2.5 lines / mm . In addition, the fast decay time, low afterglow, and superior spectral match to conventional charge-coupled devices-indicate that ZnTe : O is a very promising phosphor candidate for x-ray imaging applications.

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