According to reports, on the morning of July 27th, the Ghanaian micro reactor (micro neutron source reactor) low-enriched uranium reactor successfully achieved zero-power experiments for the first time in the China Institute of Atomic Energy (IAEA). This is an important milestone in the Ghanaian micro reactor low enrichment transformation project undertaken by China, which indicates that all technical preparations for the Chinese side of the project have been completed and the key steps of the project have been successful.
The picture shows that on July 27, experts from the International Atomic Energy Agency, the National Atomic Energy Agency of China, the United States Department of Energy, and the Ghana Atomic Energy Commission, as well as experts from Nigeria, Syria, Pakistan, and Thailand, witnessed the critical success of the experiment.
At the same time, following the completion of the first low-enrichment, high-enriched-uran, low-enrichment transformation of the micro-reactors in China in March this year, and after achieving full-power operation, this is another major step forward in implementing the international commitment and promoting the cooperation mode of reducing high-enriched uranium. It is also China’s tangible contribution to the world’s anti-nuclear terrorism and strengthening international nuclear security.
China is currently the only country in the world that has fully mastered the technology of micro-reactor research and construction. Unlike traditional nuclear reactors, microstacks do not have cooling towers or towering chimneys. The reactor core is only the size of a pressure cooker. In the industry, micro-stacks are also called “fool heaps†because they are similar to an experimental instrument and are simple to use but have many uses. They can perform neutron activation analysis, testing of nuclear instrument probes, teaching and training, and production of a few isotopes.
“The purpose of the low-enrichment of the micropiles is to replace HEU core fuels with low-enriched uranium core fuels without changing the geometry of the reactor core.†Yang Hongyi, director of the Ministry of Atomic Energy, said that the conversion still needs to be used. The original cylinder charging operation.
Assisting Ghana to achieve a low-concentration reconstruction of the micropiles is one of the important actions of the “Five Major Initiatives†and “Sino-US Joint Statement†put forward by General Secretary Xi Jinping proposed by the Chinese government on the implementation of the Fourth Nuclear Safety Summit. Ray Zengguang, chief engineer of China National Nuclear Corporation, said that CNNC attaches great importance to the Ghanaian micro reactor low enrichment project and hopes to complete the project as soon as possible by strengthening international cooperation. In the future, China National Nuclear Corporation will contribute more to the promotion of wider peaceful use of nuclear energy.
The first critical success of this experiment is to implement the Chinese government's commitment to the Ghanaian micro-reactor low-concentration reconstruction project and the spirit of active international cooperation among countries in the nuclear non-proliferation field. The "Ghanaian model" will also provide important experience for the follow-up of low-concentration reactors and nuclear non-proliferation international cooperation.
The Ghanaian micro reactor is the first research reactor of the country designed and built for Ghana by the China Atomic Energy Research Institute through the IAEA technical cooperation project in 1995. It uses HEU as fuel and is built to train Ghanaian nuclear technicians. Work has played an active role.
In 2013, as agreed by the International Atomic Energy Agency (IAEA), the United States Department of Energy (DOE), Ghana and China, China will take the lead in undertaking the low-concentration fuel reform of the Ghanaian micro reactors. Since signing a formal contract in 2015, the China Atomic Energy Research Institute has begun the process of low-concentration reconstruction of the Ghanaian micro reactor.
To carry out the low-concentration fuels of micro-reactors not only conforms to China's nuclear non-proliferation international policy, but also can more effectively prevent nuclear proliferation, and can play an active role in promoting micro-reactors at home and abroad.
China masters the complete technology of low-concentration
The micropiles are not far from our lives. The micro reactor is a small, low-power, inherently safe, and easily-operable reactor device that can be built in densely populated universities and research institutes in large and medium-sized cities. It can be widely used in neutron activation analysis, radioisotope preparation, and teaching. Training, reactor physics experiments and instrument tests.
“Since 1984, we have used micro-reactors to analyze a wide variety of samples, ranging from astronomy to the geography, involving many disciplines such as geology, geochemistry, and life sciences.†Li Yiguo, director of the micro-complex chamber at the Institute of Atomic Energy, said the results of the analysis Provide scientific basis for many studies.
China's micro reactor research and construction can be traced back to the late 1970s and early 1980s. After theoretical calculation of a variety of physical design solutions and zero-power experimental verification, in March 1984, China's first micro-reactor developed, designed, and built by the Institute of Atomic Energy was successfully completed and put into full-power operation.
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