Identification of Unknown Interface Locations in a Source/Shield System Using the Mesh Adaptive Direct Search Method
- Los Alamos National Laboratory
The Levenberg-Marquardt (or simply Marquardt) and differential evolution (DE) optimization methods were recently applied to solve inverse transport problems. The Marquardt method is fast but convergence of the method is dependent on the initial guess. While it has been shown to work extremely well at finding an optimum independent of the initial guess, the DE method does not provide a global optimal solution in some problems. In this paper, we apply the Mesh Adaptive Direct Search (MADS) algorithm to solve the inverse problem of material interface location identification in one-dimensional spherical radiation source/shield systems, and we compare the results obtained by MADS to those obtained by Levenberg-Marquardt and DE.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- DOE/LANL
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1044126
- Report Number(s):
- LA-UR-12-22365; TRN: US1203338
- Resource Relation:
- Conference: 2012 American Nuclear Society Annual Meeting ; 2012-06-24 - 2012-06-28 ; Chicago, Illinois, United States
- Country of Publication:
- United States
- Language:
- English
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