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Method of producing radioisotopes using a heavy water type nuclear power plant

A radioisotope, heavy water technology, used in nuclear power generation, conversion in nuclear reactors, nuclear engineering, etc., can solve the problems of scarcity and expensive irradiation sites for research nuclear reactors

Pending Publication Date: 2018-02-16
法玛通加拿大有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Irradiation sites for research nuclear reactors are very expensive and will become even rarer in the future as reactors are shut down due to aging

Method used

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  • Method of producing radioisotopes using a heavy water type nuclear power plant
  • Method of producing radioisotopes using a heavy water type nuclear power plant
  • Method of producing radioisotopes using a heavy water type nuclear power plant

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Embodiment Construction

[0021] Heavy water nuclear power plants (especially CANDU pressurized heavy water reactors) have very high thermal neutron fluxes and high levels of epithermal neutron fluxes in a wide range of resonances capable of activating neutron-capturing non-uranium-based targets. This neutron capture significantly reduces the waste generated to obtain radioisotopes, while also enabling the production of large quantities of radioisotopes such as Mo-99 to replace production using decommissioned aging research reactors.

[0022] Several studies have been conducted looking at modifying CANDU fuel bundles contained in the primary pressure tube of the primary coolant circuit to include irradiation targets that allow isotope production. This involves the use of online refueling machines to insert and retrieve the modified fuel bundles, making the reactor operationally risky as the refueling function limits the operating unit and may increase the risk of scrams due to unforeseen events . The ...

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Abstract

A method of producing radioisotopes using a heavy water type nuclear power plant is provided. The method includes inserting targets (37) into a heavy water moderator of the heavy water reactor througha guide tube (30) in a port (55) in a reactivity mechanism deck (45) of the heavy water reactor. The heavy water reactor operates to irradiate the target to convert the target into a radioisotope. The method then includes removing the radioisotope from the moderator of the heavy water reactor via the reactivity mechanism deck. A heavy water nuclear reactor is also provided.

Description

technical field [0001] The present disclosure generally relates to a radioisotope, and more particularly, to a method of producing a radioisotope source using a heavy water type nuclear power plant. Background technique [0002] Radioisotopes are used in various fields such as industry, research, agriculture and medicine. Typically, artificial radioisotopes are produced by exposing suitable target materials to a neutron flux for an appropriate period of time in a cyclotron or research nuclear reactor. Irradiation sites for research nuclear reactors are expensive and will become even rarer in the future as reactors are shut down due to aging. Molybdenum-99 (Mo-99) is particularly useful in the medical field and is expected to provide an alternative production site for Mo-99 and other radioisotopes. [0003] EP 2093773A2 shows a radionuclide production system in which short-lived radioisotopes with medical applications are produced by nuclear fission in a commercial light wa...

Claims

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Application Information

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IPC IPC(8): G21G1/02G21C23/00
CPCG21C23/00G21G1/02Y02E30/30
Inventor 威廉·亨利·库珀
Owner 法玛通加拿大有限公司
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