X-ray computed tomography apparatus of the electron beam type wi

Details X-ray computed tomography apparatus of the electron beam type wi X-ray computed tomography apparatus of the electron beam type wi

1996-04-10

1997-05-27

Wong, Don

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378137, 378138, H01J 3530

Patent

active

056339062

ABSTRACT:
In an x-ray beam computed tomography apparatus having a ring anode scanned by an electron beam for producing an x-ray beam which rotates around an examination region, measurement of the intensity distribution in the electron beam is enabled at various locations of the ring anode during operation. For this purpose, the ring anode can have at a number of locations around its circumferential direction, insulated sub-anodes with an insulating interspace therebetween, to which a measuring arrangement for measuring the charge distribution, and thus the intensity distribution, in the electron beam is connected. The charge distribution is measured when the electron beam sweeps the interspace between two sub-anodes.

REFERENCES:
patent: 4352021 (1982-09-01), Boyd
patent: 5224137 (1993-06-01), Plomgren et al.
patent: 5247556 (1993-09-01), Eckert et al.

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