Surface charge accumulation of particles containing radionuclides in open air
Abstract
Radioactivity can induce charge accumulation on radioactive particles. But, electrostatic interactions caused by radioactivity are typically neglected in transport modeling of radioactive plumes because it is assumed that ionizing radiation leads to charge neutralization. The assumption that electrostatic interactions caused by radioactivity are negligible is evaluated here by examining charge accumulation and neutralization on particles containing radionuclides in open air. Moreover, a charge-balance model is employed to predict charge accumulation on radioactive particles. It is shown that particles containing short-lived radionuclides can be charged with multiple elementary charges through radioactive decay. The presence of radioactive particles can significantly modify the particle charge distribution in open air and yield an asymmetric bimodal charge distribution, suggesting that strong electrostatic particle interactions may occur during short- and long-range transport of radioactive particles. Possible effects of transported radioactive particles on electrical properties of the local atmosphere are reported. Our study offers insight into transport characteristics of airborne radionuclides. Results are useful in atmospheric transport modeling of radioactive plumes.
- Authors:
-
- Georgia Inst. of Technology, Atlanta, GA (United States)
- Georgia Inst. of Technology, Atlanta, GA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1185667
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Environmental Radioactivity
- Additional Journal Information:
- Journal Volume: 143; Journal Issue: C; Journal ID: ISSN 0265-931X
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Kim, Yong-ha, Yiacoumi, Sotira, and Tsouris, Costas. Surface charge accumulation of particles containing radionuclides in open air. United States: N. p., 2015.
Web. doi:10.1016/j.jenvrad.2015.02.017.
Kim, Yong-ha, Yiacoumi, Sotira, & Tsouris, Costas. Surface charge accumulation of particles containing radionuclides in open air. United States. https://doi.org/10.1016/j.jenvrad.2015.02.017
Kim, Yong-ha, Yiacoumi, Sotira, and Tsouris, Costas. Fri .
"Surface charge accumulation of particles containing radionuclides in open air". United States. https://doi.org/10.1016/j.jenvrad.2015.02.017. https://www.osti.gov/servlets/purl/1185667.
@article{osti_1185667,
title = {Surface charge accumulation of particles containing radionuclides in open air},
author = {Kim, Yong-ha and Yiacoumi, Sotira and Tsouris, Costas},
abstractNote = {Radioactivity can induce charge accumulation on radioactive particles. But, electrostatic interactions caused by radioactivity are typically neglected in transport modeling of radioactive plumes because it is assumed that ionizing radiation leads to charge neutralization. The assumption that electrostatic interactions caused by radioactivity are negligible is evaluated here by examining charge accumulation and neutralization on particles containing radionuclides in open air. Moreover, a charge-balance model is employed to predict charge accumulation on radioactive particles. It is shown that particles containing short-lived radionuclides can be charged with multiple elementary charges through radioactive decay. The presence of radioactive particles can significantly modify the particle charge distribution in open air and yield an asymmetric bimodal charge distribution, suggesting that strong electrostatic particle interactions may occur during short- and long-range transport of radioactive particles. Possible effects of transported radioactive particles on electrical properties of the local atmosphere are reported. Our study offers insight into transport characteristics of airborne radionuclides. Results are useful in atmospheric transport modeling of radioactive plumes.},
doi = {10.1016/j.jenvrad.2015.02.017},
journal = {Journal of Environmental Radioactivity},
number = C,
volume = 143,
place = {United States},
year = {Fri May 01 00:00:00 EDT 2015},
month = {Fri May 01 00:00:00 EDT 2015}
}
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