Abstract:
:With the availability of the National Institute of Standards and Technology (NIST) Radon Emanation Standard with a content of approximately 5000 Bq of 226Ra, it is possible to build a flow through a practical radon test chamber. A standard glove box with four gloves and a transfer port is used. Air is pumped through a flow integrator, water jar for humidification and NIST source holder, and into the glove box through a manifold. A derived theoretical expression provides the calculated radon concentration inside the chamber. The calculation includes a derived decay correction due to the large volume and low flow rate of the system. Several calibrated continuous radon monitors and passive integrating electret ion chambers tested in the chamber agreed fairly well with the calculated radon concentrations. The chamber is suitable for handling the calibration of several detectors at the same time.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Kotrappa P,Stieff Fdoi
10.1093/rpd/ncm430subject
Has Abstractpub_date
2008-01-01 00:00:00pages
500-2issue
4eissn
0144-8420issn
1742-3406pii
ncm430journal_volume
128pub_type
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