The detection efficiency of electron multipliers
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چکیده
The variation of the detection efficiency of electron multipliers used in the pulse-counting mode is investigated as a function of the average gain per dynode, the energy of the electrons being detected and the applied voltage. It is assumed that the pulse-height distributions can be obtained from Polya statistics and that the universal yield curve for secondary emission is applicable. Results are presented for 12-stage multipliers having values of the Polya parameter b=0*0, 0.5 and 1.0.
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