Method and apparatus for measuring fast reactor power distribution
A technology of reactor power and power, applied in the direction of reactor, nuclear reactor monitoring, greenhouse gas reduction, etc., can solve the problem of high cost, and achieve the effect of reducing radiation dose, safe and reliable personnel operation, and low construction cost
Active Publication Date: 2022-06-28
CHINA INSTITUTE OF ATOMIC ENERGY
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In addition, the detection chip activation method also needs to design and manufacture special irradiation experiment components, which makes the cost of this measurement method relatively high
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[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described clearly and completely below. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0049] Unless otherwise defined, technical or scientific terms used in the present invention should have the ordinary meaning as understood by one of ordinary skill in the art to which the present invention belongs.
[0050] One aspect of the present invention provides a method for measuring fast reactor power distribution, the principles of which are described herein. The fuel assembly of the fast reactor is irradiated with low power in the core, that is, after the fuel...
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The invention discloses a method for measuring the power distribution of a fast reactor. The method comprises the following steps: setting an alignment hole on the side wall of the transfer chamber of the fast reactor, and the alignment hole runs through the side wall of the transfer chamber; The gamma-ray detection device is installed outside the side wall of the chamber, and the gamma-ray detection device is used to detect the gamma-ray from the collimation hole; make the fuel assembly of the fast reactor run for a certain period of time; stop the fast reactor; transport the fuel assembly to the transshipment The position of the transfer mechanism aligned with the collimation hole in the room; the parameter of the gamma ray from the fuel assembly is measured by the gamma ray detection device; and the power distribution of the fast reactor is calculated according to the measured parameter of the gamma ray. The method according to the invention is simple and easy, and does not need to design and manufacture special irradiation experiment components and related equipment, so the cost is low, and the operation is simple and convenient, no additional radioactive waste is generated, and the safety is improved. A related device for executing the above method is also disclosed.
Description
technical field [0001] The present invention relates to the field of nuclear reactors, and more particularly, to a method for measuring and calculating the power distribution of a reactor and related equipment for implementing the method. Background technique [0002] With the development of my country's economy, the demand for power supply is increasing, and non-fossil energy has gradually replaced the role of fossil energy by virtue of its clean and renewable advantages. Relying on its advantages in resources, environment and economy, nuclear energy has gradually become the new favorite of the energy industry. With the development of nuclear energy, nuclear safety issues have received more and more attention, and the requirements for effective control and safety control of nuclear power plants are getting higher and higher. [0003] The reactor core power distribution is a key parameter related to the safe operation of the reactor. Generally, the core power distribution n...
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IPC IPC(8): G21C17/10
CPCG21C17/10Y02E30/30
Inventor 陈效先陈晓亮胡晓张强王渊渊王华才
Owner CHINA INSTITUTE OF ATOMIC ENERGY