Computational and experimental investigation of the IGR reactor temperature field

The experimental results of measuring the temperature in the IGR reactor laying are analyzed; it is shown, that the temperature measurement is impossible at the start moment due to the thermo-pairs heating and during 1 min after the start due to the system time lag. The three-dimensional program TEMPO on calculation of the reactor laying temperature field is developed. It is shown, that the above program forecasts the temperature field with the 10% error, which is sufficient at the present stage of works. The results of the laying temperature field calculations are presented