IEVref:395-03-08ID:
Language:enStatus: Standard
Term: pulse ionization detector
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Definition: radiation detector which allows the detection of a single ionizing event of short duration

Note 1 to entry: Three operational modes are generally distinguished:

  • The ionization chamber mode: corresponding to that range of operating voltages over which gas multiplication does not occur. The pulse amplitude is a direct measure of the total number of ions produced in the sensitive volume as the result of an ionizing event. This is a current measuring ion chamber, not a pulse type.
  • The proportional counter mode: corresponding to that range of operating voltages over which the gas multiplication factor is independent of the primary ionization. The pulse amplitude is proportional to the total number of ions produced in the sensitive volume as a result of an ionizing event.
  • The Geiger-Müller mode: corresponding to that range of operating voltages over which each ionizing event gives rise to an output pulse having an amplitude that is independent of the number of ions initially produced in the sensitive volume by that ionizing event.

Note 2 to entry: This entry was numbered 394-25-03 in IEC 60050-394:2007.


Publication date:2014-03
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Internal notes:2017-08-29: Cleaned up <p> tags. LMO
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