IVG.1M Reactor

IVG.1M research reactor is an upgraded version of IVG.1 reactor used for tests of fuel assemblies (FA) and cores of high temperature gas-cooled reactors including nuclear jet propulsion (NJP) reactors and nuclear power propulsion plants (NPPP).

Guard perimeter
Object 300. Control room
Reactor IVG 1M
Hot chamber
Taking off reactor's cover

IVG.1M reactor can be used in tests providing solution of the following tasks:

  • testing of different type FA under operating conditions;
  • FA structure material reactor tests;
  • testing of FA structures and their elements;
  • study of possible accident conditions and testing of preventive measures.

Technical characteristics

Thermal power 72 MW
Core effective diameter 548 mm
Core height 800 mm
Uranium-235 content in the core 4,6 kg
Thermal neutron flux density 3,5×1014 n/cm2s
Water rate through the reactor up to 380 kg/s/td>
Maximum water temperature 95°С

The most important works conducted recently at the reactor are:

  • studies on ITER (International Thermonuclear Experimental Reactor) structure material interaction with hydrogen and its isotopes under reactor irradiation condition;
  • study of reactor radiation scattering in the atmosphere to validate safety of nuclear power.
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