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Radiology, Vol 128, 783-785, Copyright © 1978 by Radiological Society of North America

ARTICLES

The "swinging" tube: a new concept

K Amplatz, R Moore and D Korbuly

A new technique converts a standard biased x-ray tube into a microfocal spot tube with a clinically useful loading capacity. If the tube is pivoted exactly through the focal spot, the film can be scanned with a 5-10 cm wide beam and cover a 17-inch field. Then the target angle can be decreased to a few degrees. The width of the focal spot can be decreased using a grid bias.




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