Radiation exposure reduction method
AssigneeKabushiki Kaisha Toshiba
InventorsYumi Yaita, Seiji Yamamoto, Hajime Hirasawa, Yutaka Uruma
Life of this patent
Estimating the term…
Abstract
A radiation exposure reduction method includes the steps of: injecting iron into a coolant which flows from the reactor cooling system to the reactor core in a nuclear power plant; and ferritizing and fixing radionuclides or parent nuclides thereof, which are contained in the coolant, on the surface of a reactor core structure, wherein an iron citrate which is soluble organic iron, or iron oxalate or iron fumarate which has a particle diameter of 3 μm or less, is used as the iron to be injected into the coolant.
Claims7
A radiation exposure reduction method comprising the steps of:
- injecting iron into a coolant which flows from the reactor cooling system to the reactor core in a nuclear power plant;
- and
- ferritizing and fixing radionuclides or parent nuclides thereof, which are contained in the coolant, on the surface of a reactor core structure, wherein an iron citrate which is a soluble organic iron is used as the iron to be injected into the coolant.
A radiation exposure reduction method comprising the steps of:
- injecting iron into a coolant which flows from the reactor cooling system to the reactor core in a nuclear power plant;
- and
- ferritizing and fixing radionuclides or parent nuclides thereof, which are contained in the coolant, on the surface of a reactor core structure, wherein an iron oxalate or an iron fumarate which has a particle diameter of 3 μm or less, is used as the iron to be injected into the coolant.
Dependencies are inferred from the claim text.