X-ray television apparatus

Details X-ray television apparatus X-ray television apparatus

1989-05-25

1991-06-11

Fields, Carolyn E.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

378116, H05G 158

Patent

active

050238965

ABSTRACT:
An X-ray television apparatus applies an X-ray to an object to be inspected, converts the X-ray projection image of the object into an optical image by a fluorescent screen or an X-ray image intensifier, picks up the optical image by a TV camera, displays the video signal obtained by a TV monitor for fluoroscopic monitoring, and records radiograph of the object by using the video signal. Avalanche multiplication is caused on the photoconductive layer of the image pick-up tube of the TV camera so as to enable monitoring or imaging with high sensitivity at a low X-ray dose rate.

REFERENCES:
patent: 3271608 (1966-09-01), Rome et al.
patent: 3466388 (1969-09-01), McMaster et al.
patent: 3668396 (1972-06-01), Asars et al.
patent: 4161755 (1979-07-01), Haendle et al.
patent: 4658413 (1987-04-01), Nishioka et al.
patent: 4669105 (1987-05-01), Fenster et al.
patent: 4736397 (1988-04-01), Velasquez
patent: 4852139 (1989-07-01), Sandrik et al.
patent: 4860093 (1989-08-01), Yamashita et al.
patent: 4888521 (1989-12-01), Taniaka et al.
English abstract of Japanese patent 62-287597.

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