Voltage Division Position Sensitive Detectors Based on Photoconductive Materials Part II: Device Performances and Experimental Results

This second section is dedicated to gain more insight into the Voltage Division Position Sensitive Detector described in Part I of this work. Here, the discussion is taken from a design point of view. The linearity and rejection to light intensity variations are described on the practical situation of an incident light beam whose cross sectional dimensions could be negligible to the length of the sensor active area. The noise contribution due to the resistive nature of the detector is taken into account and discussed, too. According to the ideas here depicted, a sensor based on high-quality CVD-diamond film has been fabricated. The experimental results acquired for such specimens, under UV excimer laser or X-ray illumination, confirm the theoretical expectations.