Low-noise arrayed sensor radiation image detecting system wherei

Details Low-noise arrayed sensor radiation image detecting system wherei Low-noise arrayed sensor radiation image detecting system wherei

1988-02-12

1989-02-14

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

35821318, H01J 4014

Patent

active

048048542

ABSTRACT:
A radiation image detecting system whose radiation image receiving plane consists of a (m, n) sensor matrix is improved in the S/N ratio by providing radiation sensors constituting the sensor matrix with their respective buffer circuits. The buffer circuits prevent the capacitance components of the sensors from being transmitted to m row-side amplifiers and n column-side amplifiers causing both the m row-side amplifiers taking charge of the output from n radiation sensors and the n column-side amplifiers taking charge of the output from m radiation sensors to have their S/N ratio improved so as to depend on .sqroot.n and .sqroot.m, respectively.

REFERENCES:
patent: 4413283 (1983-11-01), Aoki et al.
patent: 4580170 (1986-04-01), Levine
patent: 4689808 (1987-08-01), Moorman et al.
patent: 4733097 (1988-03-01), Iwabuchi et al.

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