APPLICATION OF MICROFOCUS X-RAY RADIOGRAPHY IN MATERIALS AND MEDICAL-RESEARCH

The advantages of real-time microfocus radiography are evaluated for s everal applications. These advantages are mainly the small focal spot size (5 mum) leading to a very low geometrical unsharpness (0.1 mm) fo r a magnification of 21 x; the positioning of the specimen very close to the source (15 mm) leading to high magnifications (100 x) and the m inimal scattered radiation recorded on film. This radiographic techniq ue was used to study the electrolytic codeposition of a Cu-layer on a metal substrate. Enlarged radiographic images of archaeological findin gs revealed the smallest detail. This helps in the restoration of piec es contaminated outside and remaining intact inside. For medical resea rch microfocus X-ray radiography provided useful information on the re action of bone tissue on specific osteoporosis medication, on the vasc ular changes in experimentally induced liver tumours and on the sequen tial deterioration of kidney stones.