Charge-division multiplexing circuits for low-energy gamma-ray detection: theory and experimentation

The linearity and noise performances of charge-division multiplexing systems are considered in terms of both theoretical and experimental aspects. It is shown that the classical resistive serial network is of low performance compared to the capacitive one. A new method of detection based on parallel capacitive charge-division is introduced, and a simple implementation on the stripped face of an ultrapure germanium gamma-ray detector is proposed