Radon emanation from dust of varying composition and size
- University of Alabama, Tuscaloosa, AL (United States); Shanghai Jiao Tong University (China); Shanghai Jiao Tong University Sichuan Research Institute, Chengdu (China); University of Alabama
- University of Alabama, Tuscaloosa, AL (United States)
- Sun Yat-Sen University, Guangzhou (China)
- Shanghai Jiao Tong University (China)
222Rn emanating from environmental dust constitutes an important background component for many low-energy, low-rate experiments. Radon emanation rates from dust and rock, thus, are important for experiment planning. In this paper, we report measured radon emanation fractions for five types of dry dust differing in grain size and composition. Furthermore, these data were obtained by a novel technique in γ-spectroscopy, measuring emanated and non-emanated 222Rn progeny activities as well as the parent 226Ra activity in a time series. The range of observed radon emanation fractions is (3.7 ± 2.0)% to (16.2 ± 0.9)%. Four of the five samples are standardized samples available commercially, so additional investigations of these samples may be readily carried out.
- Research Organization:
- University of Alabama, Tuscaloosa, AL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- SC0012447
- OSTI ID:
- 2367566
- Journal Information:
- Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 10 Vol. 17; ISSN 1748-0221
- Publisher:
- Institute of Physics (IOP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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