講演情報
[2B12]Development of Exposure Reduction Technologies by Digitalization of Environment and Radioactive Source Distribution(3) LASSO Theory and Demonstration for Inverse Estimation on Radioactive Source Distributions
*Shi Wei1、2、2、3、3、1,2 (1. UTokyo, 2. JAEA, 3. RIST)
キーワード：
Inverse Estimation on Radioactive Source Distributions、Air Dose Rate Measurement、Least Absolute Shrinkage and Selection Operator、Monte Carlo Simulation for Gamma Ray
A mathematical criterion on the number of monitoring points to correctly predict source distributions based on LASSO theory is developed for ill-posed radioactive source reconstruction. We employ Monte Carlo simulation to demonstrate and verify the feasibility of LASSO. Moreover, an influence factor like detector-source distance to enhance the predicting possibility in the inverse estimation is also examined.