Article ID Journal Published Year Pages File Type
1879862 Applied Radiation and Isotopes 2006 4 Pages PDF
Abstract
NIST radon standards are hermetically sealed polyethylene capsules filled with 226Ra solution. Recently, four new series of standards with activities 5, 50, 500, and 5000 Bq were prepared. The measured emanation fraction agrees with a calculation that accounts for the radon accumulated inside the polyethylene walls of the capsule. Obtained solubility of radon in polyethylene is approximately 45 of the solubility of radon in water. The radon diffusion coefficient in low-density polyethylene is 7.2×10-8cm2/s.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Radiation
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