The Design of a Linear Gating Multiplexer and Its Use in Nuclear Pulse Spectroscopy

The design of an inexpensive linear gating multiplexer with unambiguous pulse labelling is discussed. In the linear gates, a technique of switching gain elements inside the overall feedback loop results in good pulse height stability and strong rejection of unwanted pulses. The use the multiplexer in some typical situations is discussed, and some possible pitfalls arising from the configuration of associated apparatus are pointed out.