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Conditional stability for an inverse source problem and an application to the estimation of air dose rate of radioactive substances by drone data

1 School of Mathematics, Shanghai University of Finance and Economics, Shanghai, 200433, China
2 School of Mathematical Sciences, Fudan University, Shanghai, 200433, China
3 Department of Mathematics and Applications, R. Caccioppoli, University of Naples Federico II, 80126 Naples, Italy
4 Isotope Science Center, The University of Tokyo, Tokyo, 113-0032, Japan
5 Department of Mathematical Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153, Japan
6 Honorary Member of Academy of Romanian Scientists, Splaiul Independentei Street, no 54, 050094 Bucharest Romania

This contribution is part of the Special Issue: Inverse problems in imaging and engineering science
Guest Editors: Lauri Oksanen; Mikko Salo
Link: https://www.aimspress.com/newsinfo/1270.html

Special Issues: Inverse problems in imaging and engineering science

We consider the density field f(x) generated by a volume source μ(y) in D which is a domain in R3. For two disjoint segments γ, Γ1 on a straight line in R3 \ D, we establish a conditional stability estimate of Hölder type in determining f on Γ1 by data f on γ. This is a theoretical background for real-use solutions for the determination of air dose rates of radioactive substance at the human height level by high-altitude data. The proof of the stability estimate is based on the harmonic extension and the stability for line unique continuation of a harmonic function.
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Keywords inverse source problem; conditional stability; line unique continuation; numerical reconstruction; air dose estimation; drone data

Citation: Yu Chen, Jin Cheng, Giuseppe Floridia, Youichiro Wada, Masahiro Yamamoto. Conditional stability for an inverse source problem and an application to the estimation of air dose rate of radioactive substances by drone data. Mathematics in Engineering, 2020, 2(1): 26-33. doi: 10.3934/mine.2020002

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