Automated separation and measurement of radioxenon for the Comprehensive Test Ban Treaty |
| |
Authors: | T W Bowyer K H Abel C W Hubbard A D McKinnon M E Panisko R W Perkins P L Reeder R C Thompson R A Warner |
| |
Institution: | (1) Pacific Northwest National Laboratory, P.O. Box 999, 99352 Richland, WA, USA |
| |
Abstract: | A fully automatic radioxenon sampler/analyzer (ARSA) has been developed and demonstrated for the collection and quantitative
measurement of the four xenon radionuclides,131mXe(11.9 d),133mXe(2.2 d),133Xe(5.2 d), and135Xe(9.1 hr), in the atmosphere. These radionuclides are important signatures in monitoring for compliance to a Comprehensive
Test Ban Treaty (CTBT). Activity ratios of these radionuclides permit source attribution. Xenon, continuously and automatically
separated from the atmosphere, is automatically analyzed by electron-photon coincidence spectrometry providing a lower limit
of detection of about 100 μBq/m3. The demonstrated detection limit is about 100 times better than achievable with reported laboratory-based procedures for
the short-time collection intervals of interest. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|