High-accuracy x-ray imaging: screen, lens, and CCD

Herbert D. Zeman; Frank A. DiBianca; Donald B. Thomason; Jeno I. Sebes M.D.; Gunnar Lovhoiden; D.-Z. Liao; Dona Kambeyanda

doi:10.1117/12.154594

14 September 1993 High-accuracy x-ray imaging: screen, lens, and CCD

Herbert D. Zeman, Frank A. DiBianca, Donald B. Thomason, Jeno I. Sebes M.D., Gunnar Lovhoiden, D.-Z. Liao, Dona Kambeyanda

Author Affiliations +

Proceedings Volume 1896, Medical Imaging 1993: Physics of Medical Imaging; (1993) https://doi.org/10.1117/12.154594
Event: Medical Imaging 1993, 1993, Newport Beach, CA, United States

Abstract

A liquid nitrogen cooled CCD TV camera from Astromed, Ltd. has been used for quantitative X-ray medical imaging. The CCD camera is coupled to a Kodak Lanex Regular X-ray intensifying screen with a 5:1 macro lens for bone mineral densitometry of the femur of a rat for a study of the development of osteoporosis. As a feasibility study of the use of the CCD for mammography, a 2:1 macro lens has been used to couple the CCD to a clear CsI(Tl) crystal, 100 mm in diameter and 3 mm thick. The spatial resolution and quantum efficiency of the system is significantly improved by replacing the Lanex Regular screen with the CsI(Tl) crystal.

Citation Download Citation

Herbert D. Zeman, Frank A. DiBianca, Donald B. Thomason, Jeno I. Sebes M.D., Gunnar Lovhoiden, D.-Z. Liao, and Dona Kambeyanda "High-accuracy x-ray imaging: screen, lens, and CCD", Proc. SPIE 1896, Medical Imaging 1993: Physics of Medical Imaging, (14 September 1993); https://doi.org/10.1117/12.154594

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