When he was in middle school, he actively participated in commemorative activities such as "May 30th" and "September 18th", and set his ambition of "saving the country without forgetting to study, and saving the country by studying". His school, called "Xiaoshi Middle School", was the best school in Zhejiang Province at that time, with high teachers and strict requirements for students. By the time I graduated from middle school, Shanghai had fallen. From 65438 to 0938, he was admitted to Kunming Southwest United University with excellent results.

He is the first student of National Southwest Associated University. Because the school has just moved to Kunming, the conditions are poor, but there are many famous teachers. Among them are Wu, Huo Bingquan, Rao Yutai, Ye and other physicists of the older generation. In the first year, I studied in the department of mathematics, and in the second year, I transferred to the department of physics. At that time, there were not many people in the physics department, and there were only a dozen people in one grade. However, driven by excellent students (such as Yang Zhenning), the whole learning level was improved.

Four years of college life is hard, but unforgettable. More than 40 students live in a thatched cottage, and there is no electric light at night, so they can only light oil lamps. The restaurant and the library are in the big straw shed. 1939 Japanese planes bombed frequently, so everyone had to run to the mountains. There is bombing during the day, so we have to go to class at night. Although I am very tired, I still insist on studying hard. At that time, because the traffic was cut off, I couldn't contact my family, and the economy had no source. I have to rely on war zone loans and scholarships, and sometimes I am replaced by middle schools to support myself as a tutor. From 65438 to 0942, under the guidance of Wu Dayou, he completed his graduation thesis on solving the problem of planetary motion in celestial bodies with analytical mechanics.

2. Working in Tsinghua University from The National SouthWest Associated University (1942 ~ 1947)

After graduation, I stayed in the Department of Physics of National Southwest Associated University as a teaching assistant, and also studied some postgraduate courses. At that time, Wu Dayou talked about quantum mechanics, Wang Zhuxi talked about statistical mechanics, and Zhao Zhongyao, Zhang Wenyu and Huo Bingquan talked about nuclear physics.

1946, I had the opportunity to study abroad by taking the "boxer indemnity" exam. At that time, about 400 people from eight major cities in China applied for physics. Those who get the first or second place can go to England, three or four to America and five or six to France. As a result, Dai Chuan once reached the top and was admitted to study in the UK. Before the list was published, he left Kunming by truck and returned to his hometown of Ningbo to visit relatives and friends. In his hometown, he was invited by Mr. Huo Bingquan and decided to go north to teach in Tsinghua first. When passing by Tianjin, it happened that the list was released, and he was very excited by the good news of taking the first place. During the Anti-Japanese War, the Tsinghua University school building became a hospital for the wounded and sick of the Japanese army, and the original teaching facilities were completely destroyed. He worked intensively there for half a year and did two things: the first thing was to restore the physics laboratory; Secondly, an experimental teaching material was compiled and published, which solved the urgent need of teaching at that time.

3. While studying in the UK

1August, 947, went to study in the University of Liverpool in England via Guangzhou. He had the honor of studying under Professor james chadwick, a Nobel Prize winner. Chadwick built a base with an 8 MeV cyclotron in Liverpool for nuclear physics research. With his help, Dai Chuanceng studied and did research. Dai Chuanceng cooperated with British classmate R.Middleton[ later director of the tandem accelerator laboratory of the University of Pennsylvania] to do experimental research on neutron angular distribution caused by deuterium bombardment of other nuclei. Because of the high energy, neutrons can reach several trillion electron volts, so it is difficult to measure the angular distribution. The experiment was designed and arranged by Dai Chuanceng. They adopted the calculation scheme of cleavage reaction theory put forward by Huang Kun, a Liverpool theoretical group, and calculated the parity and spin of many nuclear energy levels. At that time, this work was the first batch of achievements in studying cracking reaction.

He also studied the shrinkage factor and range correction of nuclear latex. 195 1 year, some nuclear reactions using nuclear latex (C.T. Tai. 195 1. The nuclear reaction was studied by using photographic emulsion, and its properties in nuclear research were studied. Doctor of Philosophy degree from Liverpool University. ) and received a doctorate in philosophy.

1942 graduated from the physics department of The National SouthWest Associated University, and later worked as a teacher in The National SouthWest Associated University, Sun Yat-sen University and Tsinghua University.

195 1 received a doctorate in philosophy from the University of Liverpool.

Researcher and honorary president of China Institute of Atomic Energy. Mainly engaged in experimental nuclear physics, reactor physics, reactor engineering and nuclear power safety analysis and research, and achieved important results. He is a member of the Sixth Committee of China People's Political Consultative Conference. He has been consolidating the experimental research on the angular distribution of deuterium-proton and deuterium-neutron nuclear reactions, and is one of the earliest scholars in the world to measure the spin parity from the (d, n) reaction.

In 1950s, he directed and participated in the development of neutron diffraction spectrometer and other instruments, and carried out related research.

Since the 1960s, he has done a lot of organization, leadership and business guidance in the development of various instruments such as large electromagnetic separators and the research of many key projects such as nuclear submarine power reactors. Lead the development of micro-reactor and develop neutron transmutation doping technology of single crystal silicon; Make outstanding contributions to the establishment of China's nuclear power safety research system. 1980 was elected as an academician of China Academy of Sciences.

After returning to China, various nuclear detectors such as halogen tube, neutron counter tube and neutron ionization chamber were successfully developed. In the research of neutron physics, the first neutron crystal spectrometer in China was established, and the first batch of neutron cross section data in China was obtained. Among them, halogen counter fills the gap in the field of nuclear detection technology in China, and won the third prize of natural science of China Academy of Sciences with 1956.

The neutron diffraction spectrometer was successfully developed and reached the international advanced level at that time. Research on monochromatic neutron utilization and neutron diffraction is carried out to verify and obtain the cross section data of nuclear energy application. Participate in the research of shielding physics to provide basis for the design of nuclear reactors. He presided over and directed the research and partial design of production reactor, power reactor and high-flux reactor. Organize and guide the development of civil microreactors and the study of neutron doping in monocrystalline silicon. At that time, news of the domestic war to resist U.S. aggression and aid Korea spread to Britain, and several China students were very encouraged and determined to return to China after their studies. Although some British research institutions wanted to keep Dai Chuanceng, he decided to return to China as soon as possible. At the end of that year, he arrived in Guangzhou via Hong Kong, visited an industrial exhibition there, and then went north to Beijing via Shanghai. What moved him very much was that in the cold winter, Qian Sanqiang, director of the Institute of Modern Physics, personally greeted him at the railway station. Since then, Dai Chuanceng has been engaged in atomic energy research.

4. Institute of Modern Physics and Institute of Atomic Energy (1952 ~ 1965)

Dai Chuanceng came to the Institute of Modern Physics, took over the nuclear detector group personally presided over by Director Qian Sanqiang, and began the hard work of developing the first generation of nuclear detection instruments in China.

At the end of 1952, Dai Chuan was the head of the nuclear detector group. At that time, most of the groups he led were young people who had just graduated. In addition to specific guidance in his work, he also established a system of weekly report and group discussion, which fully promoted academic democracy and had a very active academic atmosphere. Under his leadership, young people grew up quickly.

It was during the War to Resist US Aggression and Aid Korea. Wang led a team to inspect the Korean battlefield and brought back a special task: he proposed to develop a portable radiation detector to detect and identify whether the US military used an atomic bomb. The task was given to Dai Chuanceng. At that time, the laboratory conditions were extremely poor, and everything had to start from scratch, but he readily accepted the urgent task. He cooperated with Li Deping, rode a bicycle to Tianqiao thrift store to buy available parts, led everyone to blow glass tubes, designed electronic circuits and welding circuits, and developed a portable radiation detector made of halogen geiger counting tube and a detector made of strong current tube through short efforts. The production technology of halogen geiger counter tube has also been extended to mass production in East China Electron Tube Factory.

To develop China's neutron detection technology, we must first solve the problem of neutron source. At that time, there were no accelerators and reactors in China. What do we do? They made their own neutron source. Dai Chuanceng found out that there was an abandoned 500 mg radium source in Xiehe Hospital, and the equipment was destroyed, which has been sealed since the Anti-Japanese War. Dai Chuanceng received strong support from radiochemist Yang Chengzong to clean and repair the radium source device and extract radon gas. Dai Chuanceng sealed the beryllium powder he brought back from England in a glass tube with radon gas, and made it into a radon beryllium neutron source. Since then, the radon and beryllium neutron source has become the only neutron source to carry out neutron research before the completion of reactors and accelerators. With the neutron source, under the leadership of Dai Chuanceng, the research of boron trifluoride neutron counter was started. They studied the discharge mechanism and working conditions of boron trifluoride counter tube from scratch, and soon passed the technical barrier, made a neutron counter tube with excellent performance, and established the production process, which was extended to Shanghai Electron Tube Factory.

The successful development and mass production of the above-mentioned counter tube provide an essential measuring means for geological exploration, teaching, armed chemical defense, neutron physics experiment, nuclear weapon development and nuclear test in China. It laid the foundation for China's independent research and development of nuclear weapons and reactors.

Under the guidance of Dai Chuanceng, we also carried out research on sodium iodide crystal and organic scintillation detector, hydrogen-containing proportional counter, air equivalent ionization chamber, boron film and fission ionization chamber, grid ionization chamber and 4πβ-γ coincidence technology for absolute measurement and neutron source absolute measurement.

In order to study neutron physics, slow neutron spectroscopy and solid state physics of the reactor, under the leadership of Dai Chuanceng, the neutron crystal spectrometer was designed from 1956 by using the anti-aircraft gun chassis obtained from the army at that time. In order to make it lighter and more accurate, they cooperated with Changchun Institute of Optics and Mechanics to make the first high-precision neutron crystal spectrometer in China in just nine months. This spectrometer was converted into a neutron diffractometer on 1960 and put into use. This is the first neutron diffraction spectrometer in China, and the highest precision diffraction spectrometer in Eastern Europe at that time. 1In July 1958, the first experimental heavy water reactor aided by the former Soviet Union for China was built. In order to have a neutron spectrometer working on the horizontal channel to detect neutrons and study the slow neutron spectrum before the reactor starts, Dai Chuanceng proposed to design and manufacture a simple spectrometer. He first found an old X-ray diffraction instrument panel of the former Academia Sinica, read out degrees, minutes and seconds from it, and designed around this dial. Under his leadership and specific guidance, a unique neutron crystal spectrometer was designed and manufactured in just over four months. They also made a high-precision and exquisite collimator and stuffed it into the reactor to measure the neutron cross sections of cadmium, indium and other nuclides. The measured data are consistent with the data published internationally at that time.

The above two spectrometers both reached the international advanced level at that time. On this basis, experimental studies on neutron energy spectrum, neutron cross section, fission cross section and neutron diffraction of the reactor have been carried out one after another. These two spectrometers have been used continuously and reliably for more than 20 years, which has played an important role in the research of reactor neutron physics and solid state physics in China.

After 1959, Sino-Soviet relations deteriorated, and Soviet experts withdrew one after another, leaving us with a lot of work. Take the stable isotope separator as an example. The Soviet Union did not bring the key ion source and receiver, but only gave us large electromagnets and vacuum boxes, not even a vacuum pump. Dai Chuan was temporarily appointed as the director of the newly established stable isotope separation laboratory, responsible for the construction of electromagnetic separators. He led everyone to ponder one by one according to the drawings of ion source and receiver in the literature, such as what material to use, how much high temperature to withstand, how thick tungsten wire is, what kind of tungsten block is, and so on, and carried out solid research and development work. Later, the comrades in the research room spent more than a year on this basis and finally developed the ion source. The receiver is also made. The first batch of stable isotopes in China was produced in 1965.

At that time, all Soviet reactor design experts withdrew. At this critical moment, the leaders of the Second Engine Department decided to appoint Dai Chuanceng as the scientific consultant for the construction of natural uranium graphite production reactor. This gave Dai Chuan, a nuclear physicist, the opportunity to turn to the new field of reactor engineering to display his talents.

As a scientific consultant of the production reactor, Dai Chuanceng participated in the process design, carefully digested the preliminary design data of the former Soviet Union with the comrades in charge of the project, verified the data together, and selected the process parameters together. After two or three years of work, the design work has made great progress. However, they found that they are not sure about a lot of data, it is difficult to choose accurate process parameters, and a lot of scientific research work is needed. So the Second Engine Department decided to set up the Research Institute of Reactor Engineering, namely Beijing 194 Research Institute. 5. 194 working period of the institute (1965 ~ 1978)

After the establishment of Beijing 194 Institute, Dai Chuan was appointed as the deputy director, and he clearly divided the work of scientific research and academic leadership. The first thing that Dai Chuanceng grasped was to select the cladding materials of the reactor components. After a lot of tests, 303- 1 aluminum alloy was selected as the coating material. At the same time, it also solves the manufacturing process problem of cladding. He also personally tested the performance of graphite, which proved that the graphite produced by China himself was qualified. In addition, he has mastered a lot of scientific research work, such as the detection of damaged parts, the test of upper parts of 49-2 swimming pool reactor, the calculation of mechanical properties of several large systems, the measurement of critical performance of subcritical devices, etc., which provided a lot of reliable experimental data for the design of production reactors. In order to cooperate with the design and preparation of tritium target, Dai Chuanceng also led the irradiation of tritium target in the reactor and the extraction after irradiation, which solved the problem of tritium target setting.

After that, the focus of his scientific research work gradually shifted to nuclear power reactors. Among the key scientific research projects of China's first nuclear submarine power reactor, the most prominent one is the fuel assembly test. Firstly, 30 modules were put into the high temperature and high pressure irradiation test loop of 10 1 heavy water reactor for irradiation test. Unfortunately, due to poor technology, one solder joint failed prematurely, and fission products were found in the reactor water, which did not meet the final test requirements, so they had to be taken out and finally broken to continue testing. Later, the problems found were fed back to the component manufacturers, and the production process of fuel components was improved. Then, 10 rods were successfully tested, disassembled, visually inspected and destructively inspected in the reactor. At the same time, 654-Ⅲ steel, the pressure vessel material of nuclear submarine reactor, was irradiated, and it was found that its brittle transition point was low, and it was concluded that high temperature would not cause embrittlement. In addition, simulated zero-power test was done in physics, flow measurement test was done in thermal engineering, and some control work was done, which made an important contribution to the development of China's first nuclear submarine.

Following 1968, Beijing 194 put forward a big development plan: first, carry out research on nuclear power plants; The second is to carry out early research on fast reactor; The third is to study space reactors. The research work of nuclear power plants mainly focuses on fuel elements. Organized and implemented by Dai Chuanceng himself, the first large-scale hot room (303 hot room) for material inspection after irradiation in China was built. In the fast reactor research, Dai Chuanceng, as the technical director, established the sodium process research work number and the fast reactor zero power device. In the research work of space reactor, the current generated in the reactor by thermionic power generation technology sang the music of Dongfanghong. At the same time, referring to foreign experience, the author proposed to build the TRIG pulse reactor in China, and led the conceptual design work, which laid the foundation for the establishment of the pulse reactor in China Nuclear Power Institute in the 1980s.

In the construction of 303 hot house, the leaders and comrades who presided over the project only considered the urgent needs of the recent engineering tasks, and put forward four hot house schemes including only mechanical performance inspection and appearance inspection. Dai Chuanceng, who is in charge of the business, thinks that since so much money is spent on building a new hot chamber, there should be a plan to meet the urgent needs of recent projects and to consider the long-term needs, especially the needs of fuel element inspection after irradiation in China in the future. He personally investigated and referred to the data of similar hot chambers abroad, and put forward the scheme of 10 hot chamber, including hot chamber, semi-hot chamber and back zone, which can adapt to the inspection of irradiated materials and fuel elements and meet the protection requirements. The comrades who participated in the work at that time said: "This is something we dare not even think about. Is it good because we are afraid that the leaders of the Ministry will not approve it? " Dai Chuanceng told them that scientists should persist in seeking truth from facts, act according to scientific laws, fulfill their duties, reflect their needs clearly to the leaders, and strive for their support. He personally persuaded the leaders of the Military Management Committee at that time, and together with the leaders of the Military Management Committee, he persuaded the leaders of the Ministry. Finally, with the support of the leaders of the Ministry, the plan of establishing 10 hot house was realized. It is precisely because of the long-term consideration of the construction of the 303 thermal cabin that after the completion of the thermal cabin, not only the urgent tasks such as the inspection of irradiated materials, but also the inspection of irradiated components of production reactors and nuclear submarine reactors, and the inspection of 3×3 test components of Qinshan Nuclear Power Station after irradiation. Starting from 1995, the inspection work of the steel supervision pipe samples of the reactor pressure shell of Qinshan Nuclear Power Plant has been carried out one by one. The hot chamber can also be used to detect the single component of spent fuel in Qinshan nuclear power plant after a little modification. Due to the strict distinction between 303 hot rooms, there has been no serious pollution in the workplace of hot rooms for decades. 303 hot chamber is still an important comprehensive test base for nondestructive testing, destructive testing and mechanical testing of irradiated materials and fuel elements in China.

Later, the focus was on the 49-3 high flux reactor. When the 49-2 swimming pool reactor was just built, someone put forward a more vivid statement, that is, "riding a donkey to find a horse." Pile 49-2 is a donkey. You need to find a horse after riding. The horse is a stake measured by Qualcomm. After the completion of the 49-2 reactor, it was proposed to build a convertible reactor, that is, according to the needs, sometimes it will be a water reactor, and sometimes it will become a Qualcomm reactor like a beryllium reactor. Dai Chuan once questioned this plan. He thinks that the reactor is very complicated and has a large dose, so it can't be moved casually like playing checkers unless it is made into a two-zone reactor. Later, after further argumentation, the dual-zone reactor scheme was accepted. During the design of 49-3 high-flux reactor, Dai Chuanceng organized and participated in the formulation of major technical schemes, inspection of working process and approval of safety measures. The purpose, scale, reactor type and reactor physical scheme of Qualcomm mass reactor were determined under his specific guidance. He also organized a lot of scientific research work such as fuel element test, material test, control rod test and hydraulic simulation, which provided a series of reliable basis for the design.

6. After returning to the Institute of Atomic Energy (Institute) (1978 ~ 1990)

1978, Beijing Institute 194 moved to Sichuan. So Dai Chuanceng was invited by Wang Zhi, director of the Institute of Atomic Energy, and returned to the Institute as deputy director. 1979, with the reform and opening up, director Wang led a delegation of China's nuclear energy to visit the United States. During the visit, Dai Chuanceng, as a member of the delegation, saw the neutron transmutation and phosphorus doping technology of monocrystalline silicon in their 5MW research reactor at the University of Missouri, which can irradiate and dope several tons of monocrystalline silicon every year and can be used in high-power rectifier tubes. Dai Chuanceng soon realized that this is a very practical nuclear application technology. In the past, single crystal silicon was doped by diffusion method, and phosphorus atoms were doped into silicon single crystal, but the doping was uneven, so it was difficult to achieve the expected target resistivity, and the yield of semiconductor devices was very low. By transmutation doping of neutrons released from the reactor, neutrons can penetrate into the deep layer of monocrystalline silicon, so that the distribution of doped phosphorus atoms is very uniform, and the appropriate amount of phosphorus can be controlled according to the required target resistivity. After returning home, he immediately made a serious feasibility analysis and formally proposed to carry out the research on this brand-new topic. He personally searched for the staff, organized and worked out the research plan, guided and reformed the 49-2 swimming pool reactor, expanded the core, increased the number of irradiation channels, replaced the surrounding graphite blocks with beryllium blocks, and improved the neutron irradiance. He also personally organized research and solved a series of technical problems such as how to control the irradiation amount and temperature and how to anneal. A few months later, the first batch of neutron transmutation phosphorus-doped monocrystalline silicon in China was born, and it was quickly applied to the production of silicon controlled rectifier and high-power rectifier, which not only greatly improved the yield of devices, but also took an important step for the conversion of atomic energy institute from military to civilian. This achievement won the second prize of ministerial-level scientific and technological progress in nuclear industry.

During his visit to Canada from 65438 to 0979, Dai Chuanceng saw a small, low-power slow-poke reactor with a certain neutron fluence rate developed by the University of Toronto. The fuel consumption is low, and it can be used for 10 years on a single charge, which is very economical. In addition, because of its inherent safety, it is very suitable to be built in cities and can be used as a convenient neutron activation analysis tool. It can also be used as a good teaching and training reactor, and can also be used to produce short-lived isotopes. Before going abroad, it was proposed to build this kind of reactor in the physics room. After his field trip abroad, he thought it was worth doing. After returning home, he went to Zhang Chen, Minister of Nuclear Industry, and strongly advocated the construction of this miniature neutron source reactor in China, which is economical, safe, easy to operate and has broad application prospects. At one time, Dai Chuanceng devoted great energy to the design and development of the reactor. He guided the demonstration of the physical scheme, personally organized and approved the preliminary design and construction design scheme, and finally1March, 984, a prototype micro-reactor was built by China himself. This achievement won the first prize of National Science and Technology Progress Award 1987. At present, miniature neutron source reactors have been commercialized. Not only have three reactors been built in Shanghai, Shandong and Shenzhen in China, but they have also been promoted abroad, helping Pakistan, Iran, Ghana, Syria and Nigeria to build one each. Miniature neutron source reactor has become an important export project of China National Nuclear Corporation.

One day in February, 1972, Dai Chuan was invited to attend the symposium on nuclear power development presided over by Premier Zhou Enlai. During the dinner, the Prime Minister asked, "How is the development of nuclear energy in Britain today?" Dai Chuanceng replied, "It accounts for about 8% of the national energy". Premier stressed: "China is a socialist country, which should develop faster than Britain, and the Second Engine Department should focus on nuclear energy, not just become an explosion department". After fully listening to everyone's speeches at the forum, the Premier put forward the policy of "safety, applicability, economy and self-reliance" for the development of nuclear power in China.

Bearing in mind Premier Zhou's entrustment, Dai Chuanceng initiated the development of nuclear power in China on various occasions and through various channels, starting from 1976 after careful investigation. 198 1 in the report of CPPCC members, he analyzed China's nuclear science and technology strength and put forward the opinion that China should develop nuclear power as soon as possible. Based on the analysis of China's energy structure and the needs of national economic development, he published an article entitled "Developing Nuclear Power" in Guangming Daily, calling for and publicizing the early development of nuclear power in China. Since then, the proposal has been put forward many times at the China People's Political Consultative Conference, which has attracted the attention of the CPC Central Committee and the State Council and greatly promoted the start and development of nuclear power in China.

Dai Chuanceng has deeply realized from the experience of developing nuclear power abroad that safety must be put first in developing nuclear power. Therefore, he personally led the Institute of Atomic Energy to carry out experimental studies on critical heat flux, membrane boiling and re-flooding, which have been closely related to nuclear power safety since the nuclear power industry started in China. 1979, on the third day of his visit to the United States, he happened to meet an accident at Three Mile Island Nuclear Power Station in the United States. This incident caused a sensation in the world and made many people doubt the safety of nuclear power. This incident made Dai Chuanceng more aware of the importance of nuclear power safety research. After returning to China, he immediately turned his work focus to nuclear power safety analysis and research. First, he wrote to a friend in Sweden, seeking advice on developing nuclear power safety research. This friend was very enthusiastic and supportive, and immediately sent him a thick draft of the Safety Regulation (NUSS) drafted by the International Atomic Energy Agency (IAEA). Dai Chuanceng immediately suggested that the Ministry organize personnel to translate and regard NUSS system as the basic reference system of China's nuclear safety regulations. At the end of 1980, he visited the Nuclear Regulatory Commission (NRC) of the United States and took the initiative to ask the other party to provide a nuclear power safety analysis plan. Through his efforts, he finally got large-scale programs such as RELAP5, FRAP-T and contempt from relevant departments in the United States. Then I went to Oak Ridge and got some relevant safety analysis schemes provided by the other party. At his suggestion, China participated in the Radiation Safety Information Computing Center in Argonne National Laboratory, from which he could get the analysis software cheaply every year. With his efforts, he has established a good relationship with the US Nuclear Regulatory Commission. On this basis, he contacted relevant parties, sent technical backbones to NRC, IAEA and nuclear power developed countries for further study, and invited experts from NRC to give lectures in China. These works have laid an important foundation for nuclear power safety research in China, including the establishment of nuclear safety regulations, nuclear safety review and nuclear safety management in China. He also did a lot of work for the establishment of the National Nuclear Safety Administration. During the construction of Qinshan Nuclear Power Station, the State established the National Nuclear Safety Administration, and he immediately gave support in terms of talents and materials, and he himself was invited as a consultant. At the same time, he personally trained a group of master's and doctoral students, engaged in nuclear power accident analysis and research, further carried out experimental research on nuclear power safety, and carried out frontier research on probabilistic safety analysis, fuel element design procedures, and serious accident analysis. He instructed students to study the performance of Qinshan nuclear power plant under accident conditions, put forward constructive suggestions on the design and future operation of nuclear power plant, and made important suggestions on accident prevention and disposal. Participated in the review of the retrospective safety analysis report of Qinshan Nuclear Power Plant organized by the National Nuclear Safety Administration. In order to meet the needs of nuclear power development, he also led the establishment of China Nuclear Power Software Center.

1985, Dai Chuan participated in the fast reactor seminar held in India and gave a report on the development of nuclear energy in China. The development of nuclear energy in China. Go on. Int's Symptoms. On the fast reactor. Karpakam, India. ).

After 1985, Dai Chuanceng was invited to be a member of the International Nuclear Safety Advisory Group (INSAG) of the International Atomic Energy Agency twice. After the accident of Chernobyl nuclear power plant in the former Soviet Union, he participated in accident analysis and conducted source term research with other members. During my time as a member of the advisory group, I also participated in the formulation of basic guidelines for nuclear power safety.

1990 5438+00 in June, Dai Chuanceng led a delegation to France for scientific investigation and visited the PWR nuclear power plant and fast reactor nuclear power plant. There was no accompanying translator at that time. So the team leader, experts and translators are all focused on him. Due to overwork and bad weather, he fell ill and went back to the hospital. But he didn't disturb anyone in the atomic energy institute, and didn't even realize the seriousness of his illness, thinking that he could be discharged after staying for a while. Because he thought there were many things waiting for him to do after returning to China this time.

1990165438+1October1kloc-0/,director of the reactor engineering research institute of the atomic energy institute, Chen Shuping visited him in the hospital. Although the disease mercilessly devoured his last little energy, he still fought hard and told Director Chen to boldly use young people, do a good job in combining "scientific research" with "engineering" and make the China Experimental Fast Reactor go up. He also asked his daughter to take out the relevant information of nuclear power safety analysis from the drawer and let Director Chen hand it over to relevant researchers. When he learned that the foundation laying ceremony of the fast reactor research center was about to be held in the Atomic Energy Institute, he showed a gratified smile despite his serious illness.

1990 1 181October 18, Dai Chuanceng died of heart and kidney failure at the age of 69.