LESS NUCLEAR WASTE AND SAFER EXPLOITATION OF RESEARCH REACTORS

Abstract: 

In modern Societies, the increasing energy demand is strongly combined with the requirement of the highest achievable safety for Workers, the General Population and the Environment. In the frame of this Project, safety is promoted by (a) contributing to the reduction of long lived nuclear waste and (b) increasing the capabilities of research reactors without increasing power, i.e. without lowering safety level. Thus, a computation tool will be developed, allowing for the accurate simulation of an Accelerator Driven System (ADS), i.e. a sub-critical nuclear reactor reaching criticality due to neutrons produced by proton reactions on a spallation target.

The primary target of ADS is the transmutation of long lived actinides which constitute a major environmental pressure exerted by Nuclear Industry. A possible contribution of ADS in the Th232-U233 Nuclear Fuel Cycle will also be investigated, which is a financially interesting, more proliferation-resistant and less actinides-producing nuclear fuel cycle. An existing High Energy Physics code will be transformed to also analyze a conventional reactor core (criticality, flux, reactivity insertion, fuel depletion, actinides transmutation, U233 production). The code's (p,n) reactions simulation capabilities will be enhanced to account for typical ADS spallation target materials. The code will be extensively checked.

Further, the developed tool will be used to propose configuration and composition improvements at existing research reactors to improve their capabilities without increasing power and inducing thus increased costs and risk. Core material and reflector re-arrangements will be proposed to increase locally the fast or thermal neutron flux; thus, without financial charges and keeping the level of power and safety unchanged, additional important applications such as production of specific radioisotopes and material investigation and characterization become feasible and/or cheaper and/or more accurate.

Project info

Acronym:
LENSER
Scientific Coordinator:
Catsaros Nicolas
Research Team 2 Leader:
Varvayanni Melpomeni
Research Team 3 Leader:
Alexopoulos Theodoros
Research Team 4 Leader:
Antonopoulos-Domis Michael

Stats

I.D.:
307
Mis:
380330
Duration (months):
45
Budget:
600 000.00
Diavgeia:
ΑΔΑ: Β4ΓΘ9-ΔΚ8

Document Library

News