Measurement of an Integral Spectrum with a Single-Channel Analyzer

3 MEASUREMENT OF AN INTEGRAL SPECTRUM WITH A SINGLE-CHANNEL ANALYZER 

Consider the differential pulse spectrum shown in Fig. 9.6 for which all pulses have exactly the same height Vq. To record this spectrum, one starts with the discriminator threshold set very high (higher than Vq) and then lowers the threshold by a certain amount AV (or A ) in successive steps. Table 9.1 shows the results of this measurement, where N(V is the number of pulses higher than or equal to V. A plot of these results is shown in Fig. 9.7. 

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