Speaker
Description
The non-proliferation issues caused by the civilian use of highly enriched uranium (HEU) were solved by using of several international agreements. Accordingly, efforts were made to reconstruct existing research reactors for using of low enriched uranium (LEU) and to encourage the usage of LEU in the development of new research reactors and other nuclear facilities, such as subcritical systems driven by external source (Accelerator driven system or ADS). ADS systems are considered as promising for energy production and transmutation of long-lived fission products and minor actinides [1]. The study of the processes occurring in
ADS systems with low enrichment uranium fuel is of high interest in the development of projects for innovative installations. The driven by external sources subcritical assembly Yalina-Booster [2] (Scientific Institution JIPNR-Sosny) makes it possible to study the neutron-physical characteristics and parameters of breeding media with fast and thermal neutron spectra with
subcriticality levels of $k_{eff} \le $ 0.975. Neutron-physical characteristics that can be measured in the ADS system can also be calculated by using modern simulation programs based on the Monte-Carlo method. In this paper results of simulation of the neutron- physical characteristics of the subcritical facility Yalina which consist from two subcritical assemblies Yalina-Thermal and Yalina-Booster.
- IAEA-TECDOC-1821, Use of Low Enriched Uranium Fuel in Accelerator Driven
Subcritical System - Gohar, Y. Smith, D. L. et al., YALINA Facility A Sub-Critical Accelerator-Driven System (ADS) for Nuclear-Energy Research Facility Description and an Overview of the Research Program, Report of Argonne National Laboratory (United States). Funding organization: USDOE Office of Nuclear Energy, Science and Technology (United States)