Annular anode x-ray computed tomography apparatus with a single

Details Annular anode x-ray computed tomography apparatus with a single Annular anode x-ray computed tomography apparatus with a single

1995-01-24

1996-04-02

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378137, H05G 164

Patent

active

055047912

ABSTRACT:
In an electronic x-ray computed tomography apparatus that enables a scanning of approximately 360.degree., the electron beam is guided in an annularly fashioned magnet arrangement that has a U-shaped cross section. The U enables the guidance of the electron beam to the annular anode and enables the emergence of the x-radiation. The magnet arrangement is composed of a number of side-by-side U-shaped magnet elements arranged to form an annulus with a coil for excitation of the magnet element respectively arranged on the cross bar of each U. A single magnetic arrangement is thus used to generate both the electron beam guidance field and, by means of a sudden polarity reversal of a magnet element disposed at a desired deflection location, the deflection field.

REFERENCES:
patent: 5172401 (1992-12-01), Asari et al.
patent: 5197088 (1993-03-01), Vincent et al.
patent: 5247556 (1993-09-01), Eckert et al.

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