To really use the fusion energy and make the fusion energy as a main energy in the world could need more than 50 years. The construction of ITER starts the real course to realize the peaceful use of the fusion energy. It means the technologies developed in the world are feasible to built fusion facilities or reactors with fusion core plasmas. Based on the technologies nowadays, a concept of mul...

One of the techniques of minor actinides transmutation is to recycle these nuclides into fission reactors. Two concepts of a minor actinides burner reactor with very hard neutron energy spectrum as well as very high neutronjlux me discussed. The fuel cycle facilities for these burner reactors am assessed to discuss the technical feasibili~ of these reactors. Transmutation of minor actinide in b...

The Atominstitute (ATI) of the Vienna University of Technology utilizes a TRIGA Mark II research reactor for last fourty eight years at a nominal reactor power of 250 kW (thermal). It has a completely mixed core and employing three different types of fuels i.e. aluminium clad fuel with 20% enrichment, stainless steel (SS) clad fuel with 20% enrichment and SS clad FLIP fuel with 70% enrichment. ...

Neutron detection is a relevant topic in the field of nuclear instrumentation. It at heart concerns for fusion applications (neutron diagnostics, measurements inside Test Blanket Modules TBM) as well fission (in-core and ex-core monitoring, neutron mapping or safety research reactors). Moreover, due to even more harsh conditions future experimental reactors such Jules Horowitz Reactor (JHR) Int...

The Monte Carlo calculation of the effective (i.e. adjoint weighted) neutron generation time Keff, especially for continuous energy simulations, is not straightforward nor standard in Monte Carlo codes. The use of the non-adjoint weighted neutron generation time K (standard in most Monte Carlo codes) as an approximation of the effective one can lead to a serious bias. We show here that the diff...

The Generation IV Pebble Bed Modular Reactor (PBMR) is being considered as a promising concept to produce electricity or process heat with high efficiencies and unique safety features. The PBMR is a high-temperature, helium-cooled, graphite moderated reactor. The fuel elements consist of 6 cm diameter spherical graphite “pebbles” containing each thousands of uranium dioxide microspheres. As the...