Radiation detector, radiation detecting method and X-ray diagnos

Details Radiation detector, radiation detecting method and X-ray diagnos Radiation detector, radiation detecting method and X-ray diagnos

1998-09-22

2000-12-19

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

25037001, G01T 124

Patent

active

061630292

ABSTRACT:
According to information input through a keyboard, an X-ray irradiation condition selecting portion selects an X-ray irradiation condition, retrieves a correspondence table according to this X-ray irradiation condition so as to read out a gain control state suitable for an irradiation condition, and drives an analog SW setting portion. According to a signal from the analog SW setting portion, an integration capacity of an initial stage integration amplifier is changed over. Further, according to other mode, accumulated electric charge Q of a picture element Cp is read out on a signal line and converted to a voltage Vo by the integration amplifier. By appropriately determining a sampling time by a sample/hold circuit after electric charge is read out, an influence of a switching element resistance can be excluded from a voltage Vx. Therefore, the voltage Vx can be sample held stably. Further, because the integration circuit has a characteristic of damping a high frequency noise generated in the integration amplifier, the S/N ratio of the voltage Vx can be improved.

REFERENCES:
patent: 4675739 (1987-06-01), Catchpole et al.
patent: 4689487 (1987-08-01), Nishiki et al.
patent: 4727256 (1988-02-01), Kumazawa
patent: 5084639 (1992-01-01), Ribner
patent: 5103092 (1992-04-01), Takahashi et al.
patent: 5113077 (1992-05-01), Shimizu et al.
patent: 5319206 (1994-06-01), Lee et al.
patent: 5652430 (1997-07-01), Lee
patent: 5677940 (1997-10-01), Suzuki et al.
patent: 5693947 (1997-12-01), Morton
patent: 5825033 (1998-10-01), Barrett et al.
patent: 5852296 (1998-12-01), Tsukamoto et al.

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