# Training at the Jožef Stefan institute under the STEP Programme

The second three-month visit of Serhii Kupriianchuk, a junior researcher at the NPP Decommissioning Department, to the Jožef Stefan Institute (JSI), Ljubljana, Slovenia, was recently completed with the support of the STEP programme (Sandwich Training Education Program) organised by the International Atomic Energy Agency (IAEA) together with International Centre for Theoretical Physics (ICTP).

As part of participation in the STEP programme, the scientific work of S. Kupriianchuk was to develop an effective model of a protective container for fuel-containing materials (FCM), which were formed as a result of the accident at the 4th power unit of the Chernobyl NPP. This work was performed at Reactor Physic Department of JSI. During the second visit, the second stage of scientific work was performed and a research plan for the third (final) stage was drawn up. The aim of the second stage of research was to model FCM of different types: “brown” and “black” ceramics, pumice,FCM with a high concentration of uranium and ect. In the final result of the research were obtained the values of the dose rate from different types of FCM on the surface of cylindrical container. The results of the second stage will be presented at the 29th International Conference “Nuclear Energy for New Europe”, which will be held in Portoros, Slovenia.

In addition, during the training S. Kupriianchuk had the opportunity to practically and theoretically get acquainted with the operation of the reactor TRIGA Mark II and take part in experiments.

Цей запис також доступний: Ukrainian, Russian

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