X-ray or gamma ray systems or devices – Electronic circuit – Exposure timer
Reexamination Certificate
2008-03-19
2010-12-21
Kao, Chih-Cheng G (Department: 2882)
X-ray or gamma ray systems or devices
Electronic circuit
Exposure timer
C378S016000, C378S096000, C378S108000
Reexamination Certificate
active
07856084
ABSTRACT:
In a computed tomography scanner having an emitter for emitting a beam of given radiation through an object to be analysed, a detector for receiving said beam after the beam itself has traversed the object, and a rotating arm, which supports the emitter and the detector and rotates the emitter and the detector about the object along a series of angular positions, there is generated a succession of first pulses, each of which activates the detector in one respective angular position, and a succession of second pulses for activating the emitter so that it will emit a dose of radiation in each angular position, associated to which is a respective dose of radiation in such a way as to pre-define a distribution of doses of radiation along the series of angular positions.
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Nanni Eros
Pasini Alessandro
Cefla Societa Cooperativa
Fish & Richardson P.C.
Kao Chih-Cheng G
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