| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1877981 | Applied Radiation and Isotopes | 2010 | 4 Pages |
Abstract
The National Metrology Institute of Japan (NMIJ) participated in the CCRI(II) Key-comparison of 85Kr activity measurement. The absolute internal gas-counting method was used, with a set of proportional counters of different length. The original 85Kr gas was diluted by a factor of 2×105 in order to achieve the suitable activity concentration for the proportional counters. A new dilution method was introduced, based on a large-volume balloon and gravimetric determination of the dilution volume with small uncertainties.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Akira Yunoki, Takahiro Yamada, Yasushi Kawada, Yasuhiro Unno, Yasushi Sato, Yoshio Hino,