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Proceedings Paper

High-accuracy x-ray imaging: screen, lens, and CCD
Author(s): Herbert D. Zeman; Frank A. DiBianca; Donald B. Thomason; Jeno I. Sebes; Gunnar Lovhoiden; D.-Z. Liao; Dona Kambeyanda
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Paper 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.

Paper Details

Date Published: 14 September 1993
PDF: 11 pages
Proc. SPIE 1896, Medical Imaging 1993: Physics of Medical Imaging, (14 September 1993); doi: 10.1117/12.154594
Show Author Affiliations
Herbert D. Zeman, Univ. of Tennessee/Memphis (United States)
Frank A. DiBianca, Univ. of Tennessee/Memphis (United States)
Donald B. Thomason, Univ. of Tennessee/Memphis (United States)
Jeno I. Sebes, Univ. of Tennessee/Memphis (United States)
Gunnar Lovhoiden, Univ. of Tennessee/Memphis (United States)
D.-Z. Liao, Univ. of Tennessee/Memphis (United States)
Dona Kambeyanda, Univ. of Tennessee/Memphis (United States)

Published in SPIE Proceedings Vol. 1896:
Medical Imaging 1993: Physics of Medical Imaging
Rodney Shaw, Editor(s)

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