A high count-rate spectroscopy amplifier

The paper describes a fast spectroscopy amplifier designed for application in conjunction with a natural diamond detector (NDD)-based spectrometer of neutrons, high-energy atoms and charged particles in thermonuclear fusion plasma experiments. plifier has the following distinctive features: a non-conventional shaper of spectrometric pulses; a precision “digital” base-line stabilizer; an effective built-in pile-up rejecter operating in a broad band of amplitudes. plifier is designed for applications at count rates up to 106 Hz with the time-to-peak for shaped pulses Tpeak⩾220 ns, base-level pulse width Tw⩾560 ns, and the resolving time of the pile-up inspector Tres⩾45 ns.