Arrangement for the determination by measurement of a...

Details Arrangement for the determination by measurement of a... Arrangement for the determination by measurement of a...

2006-08-01

2006-08-01

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S098800, C250S370090

Reexamination Certificate

active

07085344

ABSTRACT:
Apparatus for measuring and recording a time-varying radiation absorption profile of an object undergoing a change that causes such a variation, includes: a continuous radiation emission source; a plurality of radiation detectors; a signal-reversing switch, connected to the detectors; a plurality of signal integrators for each detector, the integrators for each detector being connected to their detector by the signal-reversing switch, with portions of the plurality of the integrators being combined in banks of integrators, such that the signal reversing switch simultaneously connects the detectors with only the integrators of one of the banks; a control unit, connected with the signal reversing switch, for switching the signal reversing switch; a pulse generator, connected to an input of the control unit; and a synchronous signal transmitter, connected to an input of the control unit, for resetting the signal reversing switch to the integrators of a first bank of integrators.

REFERENCES:
patent: 4504962 (1985-03-01), Moore
patent: 4585008 (1986-04-01), Jarkewicz
patent: 4747117 (1988-05-01), Albrecht et al.
patent: 4817119 (1989-03-01), Ledley et al.
patent: 5668375 (1997-09-01), Petrick et al.
patent: 1013225 (2000-06-01), None

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