ESTE ANNUAL IMPACTS-SYSTEM FOR ASSESSMENT OF RADIOLOGICAL IMPACTS OF OPERATIONAL DISCHARGES FROM NUCLEAR FACILITIES.

Described are models and approaches of the software tool ESTE Annual Impacts, a system for analyzes of radiological impacts of operational discharges to the atmosphere and hydrosphere from nuclear facilities. As a result, evaluated are radiological impacts to the population (to representative person and collective doses) and the environment (plants and animals). Described are models applied for calculation of dispersion in the atmosphere and hydrosphere (river, dam, sea).

ESTE-DECISION SUPPORT SYSTEM FOR NUCLEAR AND RADIOLOGICAL ACCIDENTS.

Described are functions, models and approaches of software tool Emergency Source Term code (ESTE), which is decision support system for crisis staff in case of nuclear or radiological accidents. The first task of ESTE in emergency situation at nuclear facility is to evaluate state of reactor core or state of fuel in spent fuel pool, on the base of state of barriers which should prevent the release of radionuclides to the environment. The main task is to prepare outputs, which can be utilised for recommendation of protective measures.