Surface charge accumulation of particles containing radionuclides in open air

Journal of Environmental Radioactivity
Yong-Ha KimCostas Tsouris

Abstract

Radioactivity can induce charge accumulation on radioactive particles. However, 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. 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. The study offers insight into transport characteristics of airborne radionuclides. Results are useful in atmospheric tra...Continue Reading

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Aug 27, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Hyojin KweonCostas Tsouris
Dec 7, 2013·Environmental Science & Technology·Yong-Ha KimCostas Tsouris

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Citations

Jul 2, 2019·ACS Applied Materials & Interfaces·Min-Woo KimAlexander L Yarin

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