Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1996-05-29
1998-11-10
Glick, Edward J.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
2504981, G01T 1166, G01T 1161
Patent
active
058347801
ABSTRACT:
A gamma camera system includes two or more radiation detector heads and which are mounted opposite each other to a gantry for rotation about a subject. A transmission radiation source assembly is mounted to the front face of at least one of the detectors and can be moved across the face of the detector. The source assembly includes a radiation attenuating housing, a leaded bronze source holder, and a radionuclide source. The radionuclide source is retained in a longitudinal groove disposed in the source holder. The source holder may be rotated into open, closed, and access positions. The transmission radiation emitted by the source assembly is directed across the examination region, attenuated by the subject, and detected by the opposed detector. The gamma camera system also includes a filter which selectively attenuates the transmission radiation based on the attenuation profile of the object so as to prevent saturation of the opposed detector. An image representation is reconstructed using the radiation emitted by the subject and corrected in accordance with the transmitted radiation data.
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ADAC Laboratories Advertisment; Date Unknown.
U.S. Appl. Ser. No. 08/374,977; Plummer, et al.; filed Jan. 19, 1995; "Emission/Transmission Device for use with a Dual Head Nuclear Medicine Gamma Camera with the Transmission Source Located Behind the Collimator".
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Cooley Gregory G.
Morgan Hugh T.
Plummer Steven G.
Thornton Bryce G.
Fry John J.
Glick Edward J.
Gurin Timothy B.
Picker International Inc.
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