Design criteria for electronics for resistive charge division in thermal neutron detection

An amplifier has been designed for optimal use of position-sensitive thermal neutron detectors based upon the principle of resistive charge division. The important points in this optimization are: high counting rates and good spatial resolution (low noise). In this paper, we present a short theoretical analysis of the problem that led us to our design. We make an analysis of unwanted, secondary effects caused by extra resistance, the blocking capacitor and the finite input impedance of the amplifier which often occur in a practical measurement setup of this kind.