Chapter 372 The Senior Is Back

After the celebration banquet, Xu Chuan finally took off his white coat and left the Qixia Mountain base.

He handed over the inspection and maintenance of the Dawn fusion equipment to Peng Hongxi and Zhao Hongzhi, the team leader who went to the Planck Institute for Plasma Research for training.

The former is responsible for controlling the overall situation, while the latter is more familiar with the original ASDEX device, after all, he has been trained in Germany for such a long time.

After the acceptance work is completed, the next step is what Xu Chuan said at the celebration banquet, to officially start the ignition and operation experiment of the Dawn fusion device.

At present, the longest operation time of the tokama device or tokamak-like device in the world is more than 120 seconds created by the superconducting tokamak device in France, and it can achieve controlled heat release and energy generation.

However, the advancement and performance of the controlled nuclear fusion reactor are not just about the operation time.

If you only look at the operation time, as early as 2012, the EAST device achieved a high-parameter divertor plasma operation of 20 million degrees Celsius for 403 seconds.

But this is just a small step forward on the road to controlled nuclear fusion.

Because in addition to the operating time, there are two key indicators: plasma temperature and plasma density. Of course, the most important is the energy gain coefficient.

However, at present, no country can achieve the net energy gain of fusion reaction in terms of energy gain coefficient (Q).

Therefore, this indicator is basically excluded from fusion performance. Only when the first three conditions are met at the same time, the latter will be considered.

At present, countries have adjusted from simply pursuing operating time to pursuing operating time while pursuing billion-level temperatures.

For example, Korea created a 100 million temperature and 20 seconds operating time this year, breaking the world record at billion-level temperatures.

However, this record will soon be surpassed. Xu Chuan remembers that next year, in May of 21, the EAST device in Luyang achieved repeatable 120 million degrees Celsius for 101 seconds and 160 million degrees Celsius for 20 seconds of plasma operation, extending the original record of 100 million degrees Celsius for 20 seconds by a full five times.

In other words, if he wants to break the record in one fell swoop, the duration of billion-level temperature must be at least more than 100 seconds to be able to sit at the same time as ESAT.

But for him, a 100-second operation time is not the goal.

For the first operation of the Dawnbreaker fusion device, his goal is 30 minutes!

If this goal is placed in the field of controlled nuclear fusion, others will definitely think he is crazy.

Let alone the Tokamak device, even the stellarator, which has a unique advantage in the control system, has a maximum operation time of only more than six minutes.

Half an hour, this is simply a fantasy.

But Xu Chuan is still a little confident in setting this goal.

Compared with other controlled nuclear fusion devices in the world, he has two most obvious advantages!

The first is the numerical control model of plasma turbulence. Although the previous acceptance operation lasted only a short time, judging from the feedback data, this mathematical model he established is more perfect than he imagined.

The second advantage is the modified and optimized Dawnbreaker, which is now a full superconducting confinement fusion device like EAST.

Moreover, compared with the 25T magnetic field that EAST can provide, the Dawn, which can provide more than 40T confined magnetic field, has a significantly greater advantage.

So Xu Chuan is still confident that he can run for half an hour.

On the second day after the successful ignition of the Dawn fusion device, the media invited to participate in the acceptance experiment, such as the Nuclear Industry News and the Science and Technology Innovation Herald, reported on the research progress of the Qixia controlled nuclear fusion project.

After receiving the news, the leaders of Jinling City also came to the Qixia Nuclear Fusion Industrial Park in a group and made some concerned inquiries and care to show their attention to the Qixia controlled nuclear fusion project.

However, Xu Chuan, who these city leaders wanted to see the most, was not seen in this operation.

Because he had returned to Nanjing University at this time.

It’s not that there is any important scientific research work that needs to be carried out in Nanjing University. The inspection and maintenance of the Dawn fusion device has just begun, and the experimental data generated by the acceptance operation has not yet come out.

However, on the Nanjing University side, a person who has a good relationship with him has returned from the United States.

With a hint of joy, Xu Chuan rushed back to Nanjing University.

After pushing open the door of the office and seeing the familiar figure, he also smiled.

"Long time no see, senior sister!"

The one who rushed back from the United States was senior sister Liu Jiaxin who went to study in Princeton in 2018. To this day, more than two years have passed.

In the past two years, although the contact has never been broken, Xu Chuan only met her once in early 2019. Later, on the one hand, because the air ticket was too expensive, the senior sister rarely came back, and on the other hand, he was too busy after returning to China, and missed her every time she came back.

"Long time no see." Seeing Xu Chuan, Liu Jiaxin's face bloomed with a happy smile, and greeted him quietly as before.

"Congratulations on your graduation!" Xu Chuan smiled and stepped forward to congratulate.

From September 2018 to now, it has only been two years. It took two years to complete the study in Princeton, which is already quite excellent.

And during these two years of study, this senior also participated in two world-class large-scale projects.

The first one was to participate in the "Automatic Cloud Detection Algorithm" jointly developed by Princeton and Ubotica of Spain, and made a considerable contribution in the algorithm.

The main purpose of this technology is to use artificial intelligence technology to solve the problem that photos taken by artificial satellites are often covered by clouds.

After being processed by the automatic cloud detection algorithm, a large number of blurred and useless images containing clouds in satellite photos have been identified and deleted, and only usable photos are transmitted back to the ground, saving 30% of bandwidth and significantly reducing transmission costs.

The second one is even more important. When she was studying at Princeton, she reconstructed Princeton's artificial intelligence network security platform at the Joint Information School there, which can detect complex network attacks faster, more accurately and more thoroughly.

The optimized platform can quickly detect abnormal situations, assist in identifying attack patterns, and identify unknown threats based on a large amount of multi-source heterogeneous data and algorithms, reducing the time required to detect advanced persistent threats (APT) from an average of three months to a few days.

This is definitely a huge breakthrough for the development of network security. And this senior is one of the core forces of this reconstruction platform.

It must be said that after she solved the difficulties in life and entered a higher level of learning platform, her talent burst out and amazed Xu Chuan.

After exchanging a few pleasantries, Xu Chuan smiled and asked: "You shouldn't go out again after coming back this time, right?"

Liu Jiaxin nodded and said softly: "Well, I won't go out."

"Have you decided where to work?" Xu Chuan smiled and asked: "With your current ability, I'm afraid any company that develops artificial intelligence will not refuse your resume, right?"

"I haven't contacted any company in China yet." Liu Jiaxin shook her head.

After she completed the reconstruction of the artificial intelligence network security platform in Princeton before graduation, famous companies such as Google and Apple have sent her offers, and the highest offer even offered an annual salary of 1.6 million yuan.

Although this annual salary is indeed considerable, compared with working abroad, she still wants to come back and make a contribution to the development of the country.

Xu Chuan smiled and said, "If you haven't been in contact with domestic companies, why don't you come to work for me?"

"You should know that I opened a materials research institute before and made a computational model for the research direction of materials. With the development of the institute, network security is a big problem."

"Since the high-temperature copper-carbon-silver superconducting material was announced at the end of last year, the institute has suffered many cyber attacks. In addition to future scientific research and development, I plan to build a protection platform first."

"In addition, including the future development of artificial intelligence and big data, I also need a reliable person to manage it."

It is not a sudden decision for him to establish his own protection platform for the Chuanhai Materials Research Institute and develop things in the fields of artificial intelligence and big data.

After being disrupted by representatives of the US AMSC Superconducting Company at the press conference of high-temperature copper-carbon-silver superconducting materials last year, he thought about this aspect.

The protection platform is indispensable, there is no doubt about it.

And artificial intelligence and big data are the future development trend.

Whether it is daily life or scientific research, it is impossible to bypass artificial intelligence and big data.

For the development of these two aspects, he plans to set up a new company to make a certain degree of layout. It is not necessary to seek a certain market or a certain size in it, but at least to ensure that he is qualified to enter this industry and guarantee his own development.

For example, the material calculation model of the Sichuan Hai Materials Research Institute, the underlying architecture was written by him before, but he did not know much about the program, and the current architecture has limited the subsequent development.

When studying and optimizing high-temperature copper-carbon-silver composite superconducting materials, Academician Zhang Pingxiang clearly pointed out this problem.

Xu Chuan also knew it, but he had no way at present.

He could not give up the current project and turn to optimize the material calculation model, so he could only put it aside for the time being.

At the beginning of the year, he was going to find a suitable person through headhunting to support this work, but he was busy with the controlled nuclear fusion project and it was stranded.

Now this senior sister is back, with her current ability, it should be no big problem to support this work.

After listening to Xu Chuan's words, Liu Jiaxin agreed almost without thinking: "As long as you don't dislike me."

The speed of the agreement was so straightforward that Xu Chuan did not react for a while.

After a pause, he smiled and said, "You agreed without discussing salary or benefits?"

"Aren't you afraid that I will sign a contract and ask you to pay for work?"

PS: There will be another chapter in the evening, please vote for me!