Yu Min: Amazing career, silent life

     2019-09-24    views
Looking for a quiet desk in the chaos, I have never been to the ocean. On the day of the order, the bed was uneasy, when Wu Hook, Shencheng quenched, and October was plugged out. A slogan, a life; a loud noise, horrified the world; a name, invisible for nearly 30 years.
 
Not tempted by material desires, not for the power of power, not for the sake of profit, quiet and far-reaching, indifferent to Mingzhi, and finally become a great cause. He is a member of the Chinese Academy of Sciences (academician), the country's highest science and technology award winner, and the winner of the "Republic of the Republic" Yu Min.
 
Magnificent 70 years struggle new era
 
 
"Two bombs and one star" merit medal, winner of the National Science and Technology Award, an important promoter of the reform and development of national defense science and technology, on September 17, Yu Min's honor book added another important one - "Republic of the Republic" winner .
 
In the face of honor, Yu Min has always been indifferent. He said: "The name of a person, there is no need in the morning and evening, and the ability to integrate the meager strength into the prosperity of the motherland is enough to masturbate."
 
He, who danced with the nuclear for half a century, did a terrible career, but his name was "invisible" for 28 years.
 
Should shoulder the heavy responsibility, the needs of the motherland are above all else
 
"55 years ago, after I came back from Moscow, I went to the theoretical department of the Nuclear Weapons Research Institute and contacted Yu Min. From nuclear weapons to laser research, I have been working closely with him and working under his guidance." Du Xiangyu, an academician of the Chinese Academy of Engineering, told reporters. Yu Min is 12 years older than himself. The theory department has a tradition and does not call the official title. At that time, everyone called Yu Min "old."
 
Du Xiangxuan said that non-quietness is beyond the reach of the past, is a motto that is especially liked during his lifetime, and is also a portrayal of his career and life.
 
In January 1961, Yu Min ushered in an important transformation in life - as a deputy leader to lead and participate in the pre-study work of hydrogen bomb theory.
 
In Du Xiangzhen's view, for a young scientist who has just emerged, this transformation means a huge sacrifice. The development of nuclear weapons is strong and requires a hidden name to travel all the year round.
 
Despite this, Yu Min accepted the task without thinking, and the name was "invisible" for 28 years.
 
Among the authoritative physicists who developed nuclear weapons, only Yu Min did not stay in school. When a Japanese delegation visited China, he was called "the soil expert No.1". Yu Min feels a lot about this. "In the experts I cultivated in China, I have matured earlier, but the word '土' is not good and has limitations." Yu Min said that scientific research requires various ideas to collide. In a large academic atmosphere, More conducive to growth.
 
Due to confidentiality and historical reasons, Yu Min did not bring many students directly.
 
When she graduated from the only doctoral blue, Yu Min personally wrote a letter of recommendation to let her go abroad for two years and broaden her horizons. At the same time, she did not forget: "Don't wait until the old is back, the leaves fall back to the roots and can only be used as a fertilizer. Come back."
 
A hundred days of battle, the formation of hydrogen bomb design
 
Internationally, hydrogen bombs are strategic nuclear weapons in the true sense, and hydrogen bomb research has been listed as the top secret of national security by nuclear powers.
 
No experience can be used for reference. Although Yu Min has strong basic theory and wide knowledge, he is still unfamiliar with the complex hydrogen bombs.
 
At the end of September 1965, Yu Min led dozens of comrades in the theoretical department to go to Shanghai East China to calculate the computational physics experiment, to calculate which hydrogen bomb principle is feasible, and to create a history of "hundred days of war" began.
 
At that time, the computer performance was unstable, and the machine time was very valuable. Yu Min, who was less than 40 years old, was working night shift in the computer room (12 hours in a row). After a black paper came out, he squatted on the ground and carefully analyzed the results. .
 
The structure of a nuclear weapon has many layers. After each material explodes, each time point and space point has its physical quantity such as temperature, velocity, pressure and acceleration. Yu Min suddenly found that a certain amount suddenly became abnormal from a certain point. Everyone will go to the reason immediately. Du Xiangyu went to check the equations and parameters, and found no errors; the people who did the calculation mathematics and programmed the program went to check the reasons and found no errors. The final inspection found that the original of an adder was broken, and the transistor was replaced, and the physical quantity immediately became normal. "This incident left a very deep impression on me. The place where Yu Mingao is better is to understand the laws of physics very well. He is always the one who can kick the door." Du Xiangyu said, "Although Older than reluctant to call himself the 'father of hydrogen bombs', but he did play a key role in the development of hydrogen bombs."
 
In the end, Yu Min picked out three models designed with different nuclear materials, and stripped the wire to make the configuration of the hydrogen bomb more and more clear, and formed a hydrogen bomb physical design scheme from principle to material to configuration. .
 
The explosion was successful, setting a record for the shortest research cycle
 
Yu Min is engaged in weapon theory design, but he attaches great importance to the experiment. In order to develop the first generation of nuclear weapons, Yu Min went to the plateau, and six went to the Gobi, dragging the weak body back and forth.
 
On December 28, 1966, China's first hydrogen bomb principle test, in order to ensure that the test results can be obtained, before the test, Yu Min took the top of the Gobi Desert at a temperature of minus 30 to 40 degrees Celsius, and climbed the top of the 102-meter tower in the middle of the night to check and correct. Test the placement of the project shield.
 
The Northwest Nuclear Weapons Development Base is located in the Qinghai Plateau, and the response on the Yumin Plateau is very strong. He can only eat two or two rice meals per meal. It tastes odorless and sleepless. It is only a hundred meters from the dormitory to the office. Sometimes you have to rest several times and spit several times. Even so, he insisted on leaving the base after the technical problem was solved.
 
On June 17, 1967, in the hinterland of the Lop Nur Desert, a strong shock wave from a huge mushroom-like purple cloud of smoke rolled up the dust and swept the Gobi Desert with thunder.
 
China’s first hydrogen bomb exploded successfully. At that moment, Yu Min was not at the scene, but in Beijing more than 2,500 kilometers away. He was always at the phone and he learned that the power of the explosion was exactly the same as his own calculations, and he sighed with relief.
 
From the successful explosion of the first atomic bomb to the successful bombing of the hydrogen bomb, China took only 26 months to set the world's shortest research cycle record. This is a beautiful counterattack against the nuclear blackmail and nuclear threat of the superpowers.
 
Sharp and rigorous, let nuclear weapons research take less detours
 
Since the 1960s, Yu Min has undertaken all the scientific research tasks that reflect the will of the country. There must be no omissions and sloppyness.
 
"He has said many times that it is necessary to prevent 'falling into the cliff (referring to the risk zone)' and prevent it from falling short." Du Xiangyu said that the old style of study is extremely rigorous. This is not only a basic quality of scientists, but also a source of his career. Highly responsible.
 
The first hydrogen bomb was only a test device, and it was large in size and could not be used as a nuclear warhead for missiles. It was a first-generation nuclear weapon. In order to adapt to the carrier missile, the nuclear device must also increase its power and miniaturization, and the development of the second generation of nuclear weapons is greatly increased.
 
In the late 1970s and early 1980s, for a variety of reasons, a large number of outstanding scientists and technology backbones were successively transferred. Yu Min was appointed as the vice president of the Nuclear Weapons Research Institute and the director of the Institute of Nuclear Theories. The primary and secondary principles of nuclear weapons play two vital roles: decision-making and control.
 
Carrying the first generation, watching the second generation, thinking about the third generation or even the fourth generation, Yu Min has a unique vision and keen judgment on the development of nuclear weapons.
 
Compared with the number of nuclear tests conducted by the United States and the Soviet Union for thousands of times and more than 200 times for France, the number of nuclear tests in China is only 45 times, which is less than 1/25 of that of the United States.
 
"China has reached the international advanced level with only 45 trials, and a lot of credit should be attributed to it." Zheng Shaotang, who worked with Yu Min, said that the materials used in nuclear tests are more expensive than gold, and each nuclear test is costly. If it fails, it will take several years for the team to slow down. The old choice is to have both a promising future and a solid and secure approach. Most of the time, it is a simulation test on a computer to brainstorm and ensure that the technical route has not gone through a detour.
 
Du Xiangyu has retained a record of conversations in 1992. "At that time, I drafted a draft of the 'decision suggestion' that was of great importance, and sent it to the old people to read and change. He revised several of the inaccurate references, and explained the truth of the revision." It seems that strict and cautious work is absolutely necessary for such a scientifically strong and responsible work. "In recent years, China's academic circles have become more and more aware of the importance of suppressing academic impetuousness. I have not asked too sensitive, but I think he may not know what 'scientific impetuousness' is. How can academics be impetuous? Is it possible to make real academic results?"
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