Patent ID: 7897931

Claim:
X-ray imaging sensor, comprising a scintillator element converting X-ray quanta into photons having a wavelength substantially greater than the wavelength range of the X-ray quanta, or an element having a corresponding functionality, and a semiconductor element, which comprises a CMOS circuit, and photodiodes or corresponding means arranged to divide at least part of the surface area of the sensor into pixels to form at least one column, and to convert information detected in the aforesaid scintillator element into pixel-specific electric signals, wherein, arranged in functional connection with the aforesaid pixel-specific photodiodes or corresponding means, there is means comprising an I/F (current to frequency) converter, or a corresponding component for quantizing the aforesaid electric signals by converting them into pulse trains, and wherein the sensitivity of the aforesaid I/F converters is arranged to be adjustable on the basis of a signal applied from outside of the sensor or on the basis of a signal generated from the radiation detected by the sensor.