X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1990-07-02
1992-03-24
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Absorption
378 19, A61N 510
Patent
active
050995057
ABSTRACT:
Disclosed is a method for increasing the accuracy of images obtained in radiation therapy apparatus, such as a computed tomography simulator which employs an image intensifier and a photodiode detector for converting light from the image intensifier to electrical signals for further processing. The method recognizes that a significant amount of crosstalk can exist in the image intensifier and photodiode detector chain and provides a series of steps for adjusting the electrical signals obtained from the photodiode detector to compensate for the crosstalk.
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Pavkovich John M.
Seppi Edward J.
Shapiro Edward G.
Church Craig E.
Varian Associates
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