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Observations regarding the x-ray beams from the Philips RT-305 therapy machine
Strahlentherapie
|April 1, 1979
Abstract:
A Philips RT-305 X-ray therapy unit was found to produce beams of considerable asymmetry. This has been corrected by use of a small wedge-shaped symmetry filter, placed close to the X-ray tube. The symmetry filter has only a small effect on depth doses and half-value layers.
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