Answer to Question #227210 in Atomic and Nuclear Physics for BENSON

Question

1.Define a ‘detector’.

(b) List at least four important characteristics of a ‘perfect radiation detector. Give some details of each.

(c) Draw a block diagram of a typical counting set – up. Explain the function of a pre- amplifier.

2. (a) Explain briefly how the Geiger discharge is terminated.

(b) Explain the meaning of “dead time” and “recovery time” of a Geiger counter.

(c) Explain the following statement: “In a windowless proportional counter, the output pulse height from an alpha particle source will increase with increasing alpha energy, whereas for beta particles the opposite is true.

Answer 1

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