Development of the primary measurement standard for gaseous radon-222 activity

B. C. Kim, K. B. Lee, T. S. Park, J. M. Lee, S. H. Lee, P. J. Oh, M. K. Lee, J. K. Ahn

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


The Korea Research Institute of Standards and Science (KRISS) has developed a primary system for the activity standardization of gaseous radon-222, based on the defined solid angle counting method. The size of adsorbed radon is determined by a Cyclone Storage Phosphor System, and a buffer chamber is introduced between the measurement chamber and the source for the purpose of gas purification. The measured activity of gaseous radon-222 and its associated measurement uncertainty obtained using the system are presented.

Original languageEnglish
Pages (from-to)1934-1939
Number of pages6
JournalApplied Radiation and Isotopes
Issue number9
Publication statusPublished - 2012 Sept
Externally publishedYes


  • Measurement standard
  • Radon
  • Solid angle counting method

ASJC Scopus subject areas

  • Radiation


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