Many surplus scintillation probes have a single connector through which the PMT is fed with high voltage and the anode signal is output. However, this may require an external “Bias-T” (a high voltage / signal splitter) to connect the probe to a high-voltage power supply that is separate from the PMT amplifier/processor.
These two images supplement the book’s Figure 81. They were taken with the spectrometer of Figure 80.
This figure supplements the book’s Figure 42. The book’s figure describes the features that appear in the glow discharge. However, we felt that a color picture is required as a cross-check to help you correctly set up your own system.