When a uniform beam of X-rays passes through a patient, it is reduced in varying amounts by different tissues. The lungs comprising about two thirds air, reduce it only a little; solid soft tissues, such as muscles, reduce it more; bone reduces it a great deal. The purpose of this article is to report the design, construction and testing of a prototype test object to demonstrate the facilities available with X-ray image intensification techniques.
Davies M, Owst D. An X-ray test object in Meccano. Constructor Quarterly 2000; 50: 42-44.
Martin L Davies or Dave K. Owst Cleveland Unit, Middlesbrough. Tel: +44 (0)1642-850-850.
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