Applications of Mesh Adaptive Direct Search Algorithms to Solve Inverse Transport Problem: Unknown Interface Location
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Inverse transport problems are problems where radiation signatures are used to identify unknown components of a radioactive source/shield system. We consider a spherical system of some gamma-ray source surrounded by some shield where both source and shield may be multilayered but assume that a material in each layer is homogeneous. The system variables of a multilayered spherical source/shield system include the number of layers, interface locations, material densities and isotopic compositions. The materials may be source or shield materials. If all system variables are unknown, solving inverse transport problems is very difficult due to ill-posedness and complexity of problem models. Typically, inverse transport problems are partially solved by assuming that some system variables are known.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1095220
- Report Number(s):
- LA-UR--13-27506
- Country of Publication:
- United States
- Language:
- English
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