NEUTRON SOURCE ASSEMBLY FOR PRESSURIZED WATER REACTOR

摘要

The present invention relates to a neutron source assembly for a pressurized water reactor which includes first line sources and a second line sources required for the nuclear reactor core operation of an APR1400 pressurized water reactor as a Korean standard nuclear reactor which are alternately arranged. For solving the objective, a neutron source assembly for a pressurized water reactor according to the present invention, includes an upper pipe unit which is inserted into the upper part of a nuclear fuel assembly guide pipe of neutron source assembly for a pressurized water reactor; a lower pipe unit which is inserted into the lower part of the nuclear fuel assembly guide pipe of neutron source assembly for a pressurized water reactor and comprises a tube connected to the lower part of the upper pipe unit and an end cap which seals the lower part of the tube; and first and second line sources which are formed in the tube and are alternately arranged in series. A neutron line source unit is alternately arranged in a condition that second line sources are arranged between the second line sources.