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11 The Electrical Power Research Institute is a partner on several INL research projects including this project at the Center for Advanced Energy Studies investigating how different metallic alloys are damaged by the environment within nuclear power reactors. Testing materials The performance of materials is greatly affected by the high radiation fields inside a nuclear power reactor. INL and the Electric Power Research Institute EPRI are working together to understand stress cracking crack growth rates and the fracture toughness of various material alloys while in high-radiation environments. Reactor safety analysis INL has developed the industrys premier modeling tools for reactor and reactor fuel development and has licensed them for use to companies and universities around the world. This includes RELAP5- 3D which can be used for reactor safety analysis reactor design simulator training of operators and as an educational tool by university nuclear engineering programs. RELAP5-3D is a state-of-the-art simulation tool that allows users to model the coupled behavior of the reactor coolant system and the core for various operational transients and possible accidents that might occur in a nuclear reactor. RELAP5-3D has been licensed for numerous nuclear and non-nuclear applications including modeling of jet aircraft engines and fossil power plant components. Renewed international interest in nuclear power plus development of an improved RELAP5-3D licensing process has enhanced INLs mission of advancing nuclear safety and research. 11 Updating control rooms INL experts are providing technical collaboration to utilities to review aging analog instrumentation systems. INL suggestions for improving control technologies can improve human performance bolster safety and reduce human error in power plants. New reactor designs INL has a long history of designing and building reactors so it is only natural that a wide range of reactor designers seek to collaborate with INL to learn about INL advances in nuclear fuel design human factors design principles and other areas. INL has agreements with many of these companies to share technical information and expertise. Such information can help support industrys development of both small modular reactors and larger advanced reactor designs. RELAP5-3D licenses in FY11 Domestic International Total Universities 9 7 16 Commercial Entities 12 14 26 Government Institutions 4 1 5 Total 25 22 47 During FY 2011 INL licensed RELAP5-3D to 47 diverse users.