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Reactor Photos


Reactor core

The reactor core consists presently of 78 fuel elements (3.75 cm in diameter and 72.24 cm in length), which are arranged in an annular lattice. Two fuel elements have thermocouples implemented in the fuel element which allow measuring the fuel temperature during reactor operation. At nominal power (250 kW), the center fuel temperature is about 200 °C. Because of the low reactor power level, the burn-up of the fuel is very small. The first core operating for about 50 years was shipped back to the US in November 2012, new fuel was transferred from the US to allow further operation into the next decade.


Reactor Control

The reactor is controlled by four nuclear channels their signals are displayed both at a color graphic-monitor and at bar graph indicators.


Construction, 1959 bis 1962

The TRIGA Mark-II reactor was installed by General Atomic (San Diego, California, U.S.A.) in the years 1959 through 1962, and went critical for the first time on march 7, 1962. Operation of the reactor since that time has averaged 220 days per year, without any long outages.