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Radiology, Vol 129, 525-527, Copyright © 1978 by Radiological Society of North America

ARTICLES

Experience with a pair of matched diodes for constancy checks

JA Deye and TN Padikal

A unit is discussed which employs a pair of matched silicon diode detectors to check the constancy of the output, beam quality, field flatness, and symmetry of teletherapy equipment. The unit has proven useful, but the long-term stability of the diode-amplifier system must be considered, because two years of experience has demonstrated significant sensitivity changes in the diodes.




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Copyright © 1978 by the Radiological Society of North America.