Physics and Radiobiology of Nuclear Medicine

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72 7. Gas-Filled Detectors


Fig. 7.1. A schematic diagram of a gas-filled detector illustrating the principles of
operation.


Fig. 7.2. A composite curve illustrating the current output as a result of increasing
voltages for different radiations. (A) Region of recombination, (B) region of satu-
ration, (C) proportional region, (D) region of limited proportionality, (E) Geiger
region, and (F) continuous discharge.

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