DEVICE FOR MONITORING RADIATION IN DISCHARGE CANAL OF NUCLEAR POWER PLANT

摘要

PROBLEM TO BE SOLVED: To suppress the upsizing of a radiation monitoring device placed in a discharge canal of a nuclear power plant.

SOLUTION: The device for monitoring radiation in a discharge canal of a nuclear power plant placed in a discharge canal where the sea water discharged from a nuclear power plant flows includes a detector which detects radiation in the sea water, a first cylindrical protection tube which accommodates the detector at its end and keeps the detector located below the seawater level, a second protection tube placed outside around the first protection tube to cover the part of it below the seawater level and a support structure for fixing the second protection tube onto a fixed structure.

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