Title:
NEUTRON MODERATION COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/045367
Kind Code:
A1
Abstract:
A neutron moderation composite material, comprising a mixed material, a material accounting for 0.1-5% of the weight percentage of the mixed material and comprising a 6Li element, and Cu accounting for 0.1-5% of the weight percentage of the mixed material. The mixed material comprises a mixture of one or more of Al, MgF 2 and AlF 3; the mixed material comprises the following components in mass percentage: 10-95% of pure aluminum powder, 20-80% of aluminum fluoride powder, and 0.1-15% of magnesium fluoride powder; the material comprising the 6Li element is 6LiF powder; the mixed material further comprises pure magnesium powder, and the mass percentage of the pure magnesium powder is 0.1-5%. According to the present invention, when a moderation material at the end of an apparatus or device is decommissioned, the radioactivity thereof can be attenuated to a level of exemption or below in a short time, and obvious advantages of radioactive waste disposal method and economy can be achieved.
Inventors:
HU ZHILIANG (CN)
LIANG TIANJIAO (CN)
FU SHINIAN (CN)
LIANG TIANJIAO (CN)
FU SHINIAN (CN)
Application Number:
PCT/CN2022/094087
Publication Date:
March 30, 2023
Filing Date:
May 20, 2022
Export Citation:
Assignee:
SPALLATION NEUTRON SOURCE SCIENCE CENTER (CN)
INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCIENCES CAS (CN)
INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCIENCES CAS (CN)
International Classes:
C22C29/00; A61N5/10; C22C1/05
Foreign References:
| CN113897526A | 2022-01-07 | |||
| CN106601320A | 2017-04-26 | |||
| CN106280501A | 2017-01-04 | |||
| CN111072387A | 2020-04-28 | |||
| CN105732047A | 2016-07-06 | |||
| CN112831678A | 2021-05-25 | |||
| TWI691238B | 2020-04-11 | |||
| JP2006118953A | 2006-05-11 | |||
| KR102068901B1 | 2020-01-21 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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