An integrated microstrip detector for fast counting of minimum ionizing particles

A new two-dimensional high counting rate detector is proposed based on stri p geometry, preamplifying NMOS transistors, and resistive charge division. The simulations show a good noise performance even for relatively short sha ping times and device dimensions of the order of 1 cm. This is due to signa l preamplification through transistors integrated along the strips. Each st rip is segmented to pixels that serve as wells for the fabrication of NMOS transistors. Upon collection of the ionization charge, the respective trans istor is snitched on and its current is read after being split by charge di vision to provide two-dimensional information. Such a detector is almost fr ee from double-hit ambiguities and can handle high particle hit rates.