Seminarium Zakładu Energetyki Jądrowej i Analiz Środowiska

Positron Annihilation as a tool to study defects in Silicon Carbide

Silicon Carbide has been considered for use in Dual Fluid Reactor (DFR) as a construction material. Very good understanding of behaviour SiC during irradiation at high temperature is a key to safety and long term operation of DFR. The evolution of defects during irradiation and annealing to define the repair mechanism is still under study. Positron annihilation is one of the method which can be used to investigate the evaluation of defects in the irradiated SiC.

 

Modeling Fully Ceramic Microencapsulated (FCM) fuel – description of the research objectives

Good understanding of the failure-free performance of Tri-structural ISOtropic (TRISO)-particle fuel is a key for the safe and efficient operation of High Temperature Gas-cooled Reactors. One of the experimental method as a tool to investigate damage occurring in TRISO fuel is Raman spectroscopy. This method can be used to find damage in small particles of TRISO fuel at the front-end stage and during irradiation in the reactor. This seminar will focus on the description of the Raman method and on presenting the assumptions for an experiment on TRISO particles using the mentioned method.

MCORD - The MPD Cosmic Ray Detector - present status of work

At the Join Institute for Nuclear Research (Dubna, Russia), a new large research device - the NICA Collider - has been under construction for several years. An additional cosmic ray detector (MCORD) is designed for the main detector set (MPD). This detector, in addition to the obvious function of detecting cosmic ray particles, would be nice to improve recognition (detection) of muons from the collision and to work as an additional trigger for other sub-detectors. The MCORD detector elements are also to be used to calibrate other detectors before starting the beam.

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