Ionen-Ansprechwahrscheinlichkeit von Dampfz�hlern

Abstract

Geiger-counters with low filling pressure can be used for the registration of ions. The probability of registration of a counter filled with iodine vapor is studied for rare gas-ions and alkali-ions in the energy-range of 0.3 to 3.0 keV. All ions used are found to be registrated at least with a probability of 90%, if they got an energy of 1.8 keV.