Impact of Lubberts Effect on Amorphous Selenium Indirect Conversion Avalanche Detector for Medical X-Ray Imaging

The exponential X-ray absorption makes the indirect conversion X-ray image sensors vulnerable to the Lubberts effect, which in turn makes the sensor more sensitive to the electronic noise. A cascaded linear-system model is proposed to find the required electric field to overcome the effect of electronic noise and depth dependent X-ray absorption (Lubberts effect) in amorphous selenium indirect con...