14 September 1993 High-accuracy x-ray imaging: screen, lens, and CCD
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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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Herbert D. Zeman, Herbert D. Zeman, Frank A. DiBianca, Frank A. DiBianca, Donald B. Thomason, Donald B. Thomason, Jeno I. Sebes, Jeno I. Sebes, Gunnar Lovhoiden, Gunnar Lovhoiden, D.-Z. Liao, D.-Z. Liao, Dona Kambeyanda, Dona Kambeyanda, } "High-accuracy x-ray imaging: screen, lens, and CCD", Proc. SPIE 1896, Medical Imaging 1993: Physics of Medical Imaging, (14 September 1993); doi: 10.1117/12.154594; https://doi.org/10.1117/12.154594
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