In mid-June, Xu Chuan personally came to Luyang Science Island.

At present, the controllable nuclear fusion demonstration reactor project is progressing steadily and orderly, both on the site of the Daybreak Demonstration Reactor project and in the Daybreak Research Institute.

As for Xu Chuan, all he needs to solve is the last problem.

That is, the final hurdle of systematic improvement, lithium neutron tritium proliferation.

In the period when the dawn fusion device needs to carry out various experiments, the EAST device is also available in China if it can undertake deuterium-tritium ignition and neutron irradiation experiments.

After nearly two months of renovation, EAST has now taken on a new look.

The original niobium-titanium alloy outfield coil superconducting material has been completely replaced and replaced with a high-temperature copper-carbon-silver composite material produced by the Western Superconducting Group.

The control system was also completely replaced with a plasma turbulence numerical control model written by Xu Chuan.

Of course, due to the difference in equipment, the model must have been adjusted, and it will definitely not be perfect in a short period of time.

In addition, compared with the Daybreak Fusion Experimental Reactor, today's EAST still lacks a first-wall material.

Although zirconia carbon composites have found a suitable manufacturer, the output cannot be increased temporarily due to factors such as production difficulty.

After replacing the first wall of the Daybreak Experimental Reactor as a whole, it is necessary to provide the first wall material for the demonstration reactor project in the future.

However, for the short-term manipulation of EAST for deuterium-tritium fusion and lithium neutron tritium breeding and recovery experiments, the lack of these things is not too much of a problem.

So after the EAST device was changed, Xu Chuan rushed over as soon as possible.

"Are all the preparations ready?"

In the main control room of the EAST device, Xu Chuan looked down at the steel behemoth below through the huge floor-to-ceiling tempered glass window, and asked Yu Mu, the new person in charge on the side.

Compared to the Daybreak Reactor, the control room on the EAST side is better built.

Not only does it have a complete monitoring system and protection system, but you can also see the EAST equipment directly through the tempered glass with the naked eye.

Yu Mu nodded solemnly and replied: "The inspection has been fully completed, please ask Academician Xu to give instructions." ”

Xu Chuan nodded and gave a faint order: "Then let's start." ”

For him today, a deuterium-tritium fusion ignition experiment is no longer something to be excited about.

But for Yu Mu, who has just taken over the controlled nuclear fusion project in Luyang, this can be said to be the most important thing in his life.

Accompanied by the delivery of instructions.

EAST, who was sleeping in the core, woke up.

Liquid helium and liquid nitrogen for cooling are injected into the superconducting magnet duct of the outer field coil, and the copper-carbon-silver composite superconductor that surrounds the outer side of the EAST track is immersed in it, and the temperature of the superconducting material is rapidly reduced.

With the superconductivity effect, a huge current begins to pass through the coil, and with the help of the control coil, a powerful confined magnetic field is formed on the EAST device.

Subsequently, under the microwave action of the ICRF antenna, the temperature in the EAST chamber quickly and steadily rose to the level of 100 million.

The light blue film fused with the deuterium-tritium feedstock flows at high speed in the reactor chamber under the control of the outer field coil.

The high-energy neutrons born by fusion penetrated the first wall material and hit the liquid lithium molten salt fiercely, and the 14.1Mev high-energy neutrons, like the cue ball on the table that was vigorously hit, constantly hit the lithium nucleus in the liquid lithium molten salt.

Grains of tritium are produced and diffused in liquid lithium molten salts.

With the guidance, these liquid lithium molten salts continue to flow along the cladding, and some of the liquid lithium molten salt materials that have participated in the reaction flow out of the guide port and enter the tritium extraction system.

Here, tritium in the molten salt of liquid lithium will be replaced by hydrogen, which is subsequently purified, concentrated, and transported back into the raw material storage tank to participate in the subsequent deuterium-tritium fusion reaction.

At this moment, everyone's fists in control couldn't help but clench.

Even Xu Chuan looked through the tempered glass at the already operational EAST, where there was hope for the realization of controlled nuclear fusion technology.

[Tritium production detected!] The tritium extraction system is working properly! 】

A debriefing shattered the silence in the general control room.

"Beautiful!"

"It worked! We did it! ”

"Tritium is self-sustaining! I didn't expect that we would one day be able to participate in solving such a problem! ”

In the control room, the researchers of Project EAST and Project Daybreak went crazy.

The last puzzle has been solved, and they are really no longer far away from controlled nuclear fusion.

Even Xu Chuan, who was standing in the control room, had a bright smile on his face.

The liquid lithium molten salt neutron recovery system designed by him was best verified at this moment.

The rest depends on how efficient the neutron recovery can be.

After all, in deuterium-tritium controlled nuclear fusion, more than 80 percent of the energy is taken away by neutrons, and it would be a shame if this energy could not be harnessed.

As the ICRF heating antenna ceased to function, the temperature in the chamber of the EAST experimental reactor began to decrease rapidly.

After waiting for the EAST unit to cool down, the staff in hazmat suits quickly entered the reaction chamber and removed some of the attached test material from the first wall.

After all, it is a deuterium-tritium fusion ignition experiment, and in addition to verifying the liquid lithium molten salt multiplication tritin system, many other tests can be done.

After the attached test material was removed, at the same time, two other groups of staff members quickly stepped forward.

One group was responsible for completely disassembling the liquid lithium molten salt breeder tritin system deployed in the cladding for detection.

The other group is responsible for verifying the damage to the EAST unit as a whole.

In the absence of zirconia carbon composite materials as the first wall protection material, deuterium-tritium fusion ignition is carried out, even if there is a perfect magnetic field approximation and numerical control model, Xu Chuan estimates that the overall state of EAST will not be much better.

After all, the neutron radiation produced by deuterium-tritium fusion is terrifying.

In fact, the test of EAST also confirmed his conjecture.

Not only is the first wall of tungsten-molybdenum alloy basically completely embrittle, but even the overall structure has been affected by neutron irradiation and has varying degrees of damage.

It can be said that after one experiment, the EAST device has been half-scrapped.

But for the process of controlled nuclear fusion, it has made a huge contribution, even if it goes to the museum for retirement, it is completely worth it.

With the data collected at the cost of almost an EAST device, Xu Chuan returned to Jinling.

These data were enough for him to make an optimization of the liquid lithium molten salt proliferation tritin system.

Next time, it's time for Dawn to experiment more completely.

It's time to write another letter, though.

The liquid lithium molten salt multiplication tritin system was successfully tested, and although there are still some areas that need to be optimized, he believes that these are minor issues that will be solved soon.

The days passed, and in the blink of an eye, the time came to the beginning of July.

The entrance to the demonstration pile base is quite lively.

Various super-heavy loading trains stay in the divided yards, waiting to be unloaded.

Under the 24-hour round-the-clock construction of the nuclear industry group with several times the manpower, the industrial park has completed the construction of the construction category, and now all kinds of equipment are being transported into it and deployed to the corresponding places.

Under the leadership of Wang Yongnian and Hou Chengping, two academicians of the nuclear industry group, their reset ferrofluid generator set + conventional ultra-supercritical generator set + supercritical generator set is being installed in an orderly manner.

Standing next to the construction site, Academician Wang Yongnian of the Nuclear Industry Group, who was in charge of the scene, wore a hard hat, looking at the magnetofluid generator that was lifted by the steel cable and slowly transported to the power plant under the traction of the crane's cross arm, with a heartfelt smile on his wrinkled old face.

Being able to bring controlled fusion technology to life with his own hands, even if his role in the whole process is only a small part of it, is still satisfying.

On the side, Hou Chengping squinted his eyes and glanced at the equipment that was being installed slowly, and said with a smile: "I thought that I would live with nuclear fission power generation in my life, but I didn't expect to preside over the construction of the nuclear fusion demonstration reactor project in my lifetime." ”

Wang Yongnian looked at the generator set moving not far away, and after confirming that the assembly was going on as scheduled, there was no problem, and he grinned rarely.

"yes, it's like a dream."

After a pause, he continued: "At this time last year, I was still working on the fifth generation of controllable nuclear fission power stations, but I didn't expect that less than a year later, controlled nuclear fusion would be realized. ”

Hou Chengping smiled and sighed: "Compared to this, I am more curious about what kind of existence that person is." ”

"In the past six months, the more I have been in contact with him, the more I can feel his bottomlessness. It seems that in every field, he can make the greatest results. ”

"Breakthroughs in both theoretical and applied fields, throughout history, those who can do this step may not necessarily have a slap in the face."

"What's more, he's still so young, it seems that he is not yet twenty-five years old this year?"

Hearing this, Academician Wang Yongnian thought for a while and said, "If I'm not mistaken, Academician Xu seems to be 97 years old, and he is only 24 years old this year. ”

The two were communicating while watching the installation and deployment of the ferrofluid generator set.

At this moment, another old man with a hard hat walked towards this side.

"Lao Wang, Lao Hou, I knew you were here."

The old man who came over greeted happily, and quickly stepped forward to punch each of them, and then, he glanced at the ferrofluid generator set that was still being deployed, and said with a smile: "The progress on your side is a little slow, and I have already finished it there." ”

Hearing this, Wang Yongnian was suddenly a little unhappy, glanced at him, and said, "As long as you don't have any technical content, I can get it for you in a week." ”

They were accosted by Zeng Jitong, another academician of the State Grid Corporation of China.

Although the three of them are not colleagues, they have also worked together many times and are quite familiar.

Not only are nuclear power plants used to generate electricity, but people in their nuclear industry group naturally often deal with people on the other side of the national grid.

This Zeng Jitong is good everywhere, his personality and temper are very good, the only drawback is that his mouth is a little out of line, and his speech is not very likable.

Just like just now, when he came, he complained that their generator assembly was too slow.

Of course, he also unceremoniously went back.

Hearing Wang Yongnian say that the things he made were not technical, Zeng Jitong was immediately unhappy.

"Hey, you're still squirming? Without the converter and the power grid I built, you can generate a p of electricity. Also, have you tested the ferrofluid generator set you designed, and if you can't send a power when the time comes, it will be interesting. ”

Wang Yongnian glanced at him lightly, did not continue to bird him, and directed the installation of the magnetofluid generator set by himself.

On the side, Hou Chengping smiled and didn't pay much attention to it.

Everyone is an old acquaintance, but these two people are like natural offenders and opposite personalities, and they pinch each other as soon as they meet.

Lao Wang doesn't like to talk much, and often responds in silence; And although Zeng Jitong has a strong mouth, he can't stand the silence and crit attacks of others on him, and often chases after him.

However, the more he said, the more lazy Wang Yongnian was to pay attention to him.

However, this did not delay the cooperation work, but created a pair of happy enemies.

As for him, just eat melons and watch plays.

PS: There is another chapter in the evening, asking for a monthly pass