X-ray scanning tube with deflecting plates

Details X-ray scanning tube with deflecting plates X-ray scanning tube with deflecting plates

1990-03-16

1992-06-23

Howell, Janice A.

X-ray or gamma ray systems or devices

Source

Electron tube

378121, 378145, H01J 3530

Patent

active

051250195

ABSTRACT:
In an x-ray tube of the beam deflection type for a radiology apparatus, the stair-steps of the focusing device of the electron beam are extended by metallic deflecting electrodes placed in parallel relation to said stair-steps and electrically insulated from these latter by means of insulating layers. Said electrodes are brought to different potentials, the polarities and values of which depend on the direction and amplitude of deflection to be obtained.

REFERENCES:
patent: 3962582 (1976-06-01), Holland et al.
patent: 4065690 (1977-12-01), Maeyama
patent: 4344011 (1982-08-01), Hayashi et al.
patent: 4631742 (1986-12-01), Oliver
patent: 4689809 (1987-08-01), Sohval
patent: 4764947 (1988-08-01), Lesensky

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