The top student must be diligent.

Chapter 243 Lawson Criteria!

All the preliminary preparations have been completed, and the next step is to officially ignite the fire.

In the control room, no one spoke, and all their eyes were focused on Xiao Yi who was standing in the middle.

As the chief designer, the one who will give the orders next will be him.

Of course, for Zhao Zhanyu, Li Jiangan and other people who had planned to make a day, they were relatively nervous at this moment.

After all, this is their first time trying the UO structure. They don’t know whether this new structure will work or not. They can only rely on their trust in Xiao Yi to let this structure come to the forefront.

If they fail, it will undoubtedly be a huge blow to their entire project.

As for what those people in the Institute of Western Physics think, only they themselves know. At least, although Academician Chu Lansheng said a few months ago that the UO structure would fail, he is now less talkative.

However, in the eyes of Li Jiangan and others, this is simply because the result is about to come out, so they don't say harsh words yet. After the specific results come out, they will probably change their attitude.

As for Xiao Yi, the protagonist, he was standing in front of the control console with an exceptionally calm heart.

The day has finally come.

Although it is not the most critical day, it can be regarded as a critical node.

However, he naturally did not feel nervous, as the simulation results in the perfect project had already told him the answer very well.

All the current processes are just moving the simulated processes into reality.

Therefore, at this moment, Xiao Yi was increasingly impressed by the power of the Perfect Engineering skill.

This saved him countless time and money.

For a moment, he couldn't help but look forward to what new skills the BUFF could bring him after it was upgraded to the next level.

Coming back to his senses, he refocused his gaze on the device outside the observation window. Then, he picked up the intercom and said, "Now, how are the preparations of each unit? Diagnosis team, have you completed the diagnosis?"

The head of the diagnosis team quickly reported: "All inspections have been completed. All sensors are functioning normally, the lines are normal, and the data can be uploaded normally."

"Control room received!"

Xiao Yi continued to ask: "What's the situation of the power group?"

The head of the power group replied: "The power system is ready, the capacitors are fully loaded, and the power plant next door is also fully loaded and is waiting to supply us."

"Control room received, magnetic confinement team reports status."

"The magnetic confinement system is ready, the superconducting coil temperature is normal, the superconducting state is good, and the magnetic field distribution diagram is completely consistent with the design."

"Control room received, vacuum team, report vacuum status."

"The vacuum system is ready, and the chamber pressure has dropped to 10^-7 Pa, which meets the experimental requirements."

"Control Room Received, Finally, Fuel Control Team."

"The fuel injection system is ready, the deuterium-tritium fuel has been loaded, and injection control is ready at any time."

"Very good, all groups have completed it."

Xiao Yi took a deep breath.

Recalling the last time he was responsible for lighting a fire.

At that time, Li Jiangan invited him to be responsible for the ignition. However, the process of checking the conditions of each group was completed by Zhao Zhanyou, and finally pressing the button to turn on the current was completed by him.

And now, he has fully experienced the whole process.

However, this will definitely not be the last time.

The next time, what he lights up is the real sun.

Then, he fixed his eyes and said, "Then, all teams will evacuate the scene. In five minutes, the countdown to ignition will begin."

The working group still on site quickly evacuated the scene and returned to the safe zone.

Soon, 5 minutes passed and the countdown to ignition began in the venue.

"10!"

"9!"

"8!"

……

"2!"

"1!"

"ignition!"

Xiao Yi pressed the power button.

A huge electric current is instantly fed in, and various heating components begin to heat the fuel injected inside. The huge current flowing into the superconductor also directly brings a strong magnetic field of up to 25T to the entire UO chamber.

As the deuterium-tritium fuel enters the plasma state at high temperature, the plasma begins to be confined by the magnetic field and rotates at high speed in the O-type tokamak-like annular chamber of the UO chamber.

The temperature rose rapidly from thousands of degrees to tens of thousands of degrees, one hundred thousand degrees, one million degrees, and finally to tens of millions of degrees.

When the temperature reaches tens of millions of degrees, according to the alpha particle detectors, fusion reactions have begun to occur.

However, this is not enough.

The temperature continued to rise rapidly until -

"The plasma current rises to 1000 million amperes and the temperature reaches 1 million degrees!"

Many researchers clenched their fists in excitement.

The heating efficiency is much faster than that of EAST. Everyone looked at the line of numbers quickly calculated on the big screen, which was equivalent to 130% of EAST!

This means that the input energy of the UO structure will be about 23% lower than that of EAST!

This is undoubtedly a major breakthrough, and its significance is that the Q value will be able to become higher.

"it is good!"

Li Jiangan and Zhao Zhanyou couldn't help but pump their fists and then applaud.

Li Jiangan looked at Chu Lansheng next to him and said, "Mr. Chu, what do you say now?"

Chu Lansheng simply said, "Chief Engineer Xiao isn't excited, why are you excited?"

Li Jiangan laughed and said, "Just keep talking tough. Who can be tougher than you? When you are burned, I will go and see if you still have an open mouth."

Chu Lansheng laughed and said, "It's not certain who will die first, old man."

The two of them were arguing with each other, and everyone present was ashamed and didn't dare to interrupt. Who would dare to joke with these two oldest people in the audience like this?

However, Xiao Yi was not excited at all. If he wanted to be excited, he would have been excited when the first simulation was successful.

He did not forget his other goals, and continued, "Keep heating it up, maintain it at 1.5 million degrees, and hold on for 300 seconds."

When they heard his words, the people at the Institute of Western Objects were stunned.

Cao Xu, the current director of the Institute of Western Physics, could not help but ask, "1.5 million degrees? 300 seconds? Are you kidding me?"

Taken alone, 300 seconds isn’t actually that long.

At the beginning, EAST had already achieved a record of ultra-long pulse high-temperature plasma power generation of more than 1000 seconds.

However, when breaking this record, the temperature did not actually reach 1.5 million degrees, or even 1000 million degrees, because at above million degrees, when the fusion reaction is intense, if it could last for more than seconds, that would be a joke, and the entire EAST would be riddled with holes.

As a result, Xiao Yi actually wants to last for more than 1.5 seconds under 300 million degrees?
Could it be that he wanted to destroy this newly created device?

However, Li Jiangan and Zhao Zhanyou showed no strange expression at all and looked at Mu Yan normally.

Seeing this, Cao Xu couldn't help but lobby Zhao Zhan: "Director Zhao, are you sure you don't want to persuade your Chief Engineer Xiao? This is not a joke! That's 1.5 million degrees!"

Zhao Zhanyou laughed and said, "Why are you in a hurry? We are not in a hurry. You should stop worrying and just watch."

Cao Xu was immediately furious and cursed: "You are completely irresponsible! With such a high temperature, the fusion reaction rate will theoretically increase by 3.3 times, and the amount of high-energy neutrons produced will also theoretically increase by 3.3 times! Have you ever calculated it?"

"Your verification device is so small, how thick can the wall material be? If the internal wall material disintegrates, it will be dangerous!" "Okay, Cao Xu, don't worry."

At this time, Chu Lansheng said something to Cao Xu.

Cao Xu was startled, turned to look at Chu Lansheng, and said, "Mr. Chu, why are you being irrational with them!"

Chu Lansheng just said calmly: "Listen to me, don't worry. Look, Chief Engineer Xiao is not anxious. Do you think your calculation result is better than Chief Engineer Xiao's?"

"I..." Cao Xu opened his mouth, but in the end said nothing and sat aside.

Li Jiangan said with a smile: "Director Cao is quite good. At least he is very responsible. You think he is a good person."

Chu Lansheng said: "Don't worry about it."

"I'm too lazy to worry about it." Li Jiangan said, "But I feel like you know something."

Chu Lansheng said with a smile: "Why else do you think I came to see you? Do you really think I came to see you make fun of me?"

"If I hadn't made such a fuss at the beginning, Liu Cong probably wouldn't have told me about this matter. He was even worried that I would leak the secret. But now I only know the facts, not the reasons. Now I want to see how powerful your wall material is..."

Li Jiangan said sarcastically, "No wonder you suddenly stopped making trouble after that, old man, you're just like a little brat."

Chu Lansheng: "If Xiao Yi hadn't cooperated with you, I'm afraid you would have made trouble."

Li Jiangan laughed: "Excuse me, Xiao Yi is from Fei City, who do you think he will cooperate with?"

Chu Lansheng snorted coldly and turned his attention back to the big screen.

At this time, the temperature on the big screen finally broke through 1.5 million degrees!

"1.5 million degrees!"

People in the control room shouted excitedly.

Xiao Yi said calmly: "Start now, maintain the temperature at 1.5 million degrees for 300 seconds."

Cao Xu's objection just now did not bother him.

The original plan will not change.

As time passed by minute by minute, 300 seconds, 5 minutes, for nuclear fusion, it is neither long nor long. The long thing is that mankind has never had a nuclear fusion device that can sustain 1.5 million degrees for 300 seconds; and the short thing is that 300 seconds is too short compared to a nuclear fusion device that needs to operate for several years or even more than ten years without stopping.

But these 300 seconds will become the dividing line between long and not long.

As time slowly passed, a timer appeared on another large screen, counting down the 300 seconds.

The large screen next to it also displays a variety of data, including the key data of impurity concentration.

Impurity concentration refers to various impurity particles in the reaction chamber other than deuterium and tritium fuel.

These impurity particles are generally unavoidable, and their main components are residual air particles, as well as impurities generated by laser irradiation during the heating process, and most importantly, impurities brought into the interior by sputtering and erosion of the first wall and divertor materials.

Cao Xu, who was sitting aside because he was sulking, had been staring at the impurity concentration since the beginning. He thought that at a high temperature of 1.5 million degrees, the impurity concentration would definitely rise rapidly.

However, the UOmini device has been running at 1.5 million degrees for more than 200 seconds, and the impurity concentration has not changed at all.

From the previous 0.0001%, it is still only 0.0001% now.

"Is it fake? Is the sensor for the impurity concentration broken?"

He pointed at the big screen and couldn't help but speak.

It hasn't changed at all. Doesn't it mean that apart from the initial residual air impurities and the impurities produced during the laser irradiation heating process, the wall material and divertor produce almost no impurities?
Are you kidding me? !

But no one around paid any attention to him.

He walked to Chu Lansheng and told him the problem.

Chu Lansheng said, "Okay, don't think too much. Don't forget what I told you before you came here. Ask less and watch more."

"This……"

Cao Xu’s eyes widened.

No, it’s such a strange place, and I’m not allowed to ask?
However, at this time, the people present had already focused their attention on the 300-second countdown.

At this time, the 300-second timer has reached 240 seconds, and there are only 60 seconds left to reach their goal.

Everyone was watching the final 60 seconds with excitement.

And within these four minutes, all the data were quite healthy, whether it was the fusion power or the reaction rate.

But at this moment, Xiao Yi suddenly picked up the intercom and said, "Heating team, stop heating now!"

Everyone was stunned. Why stop heating at this time?

But there are only 60 seconds left to complete the 300-second record!

The heating team members were also quite confused and asked, "Chief Engineer Xiao, stop heating now? Are you sure?"

Xiao Yi just said: "Just do as I say."

"This……"

The heating team members were even more confused, but they could only do as the chief engineer asked.

Everyone couldn't help but wonder, is it possible that Xiao Yi suddenly planned to keep a low profile and not let this result stand out too much?
The heating system stopped.

Just when people thought the temperature was going to drop, they saw that the temperature data on the big screen had not changed at all, still stable at 1.5 million degrees, and the timer next to it was still heading towards 300 seconds.

"Lawson's criterion!"

Suddenly, the old academician Chu Lansheng said excitedly.

"Fusion has reached the Lawson criterion!"

As soon as Chu Lansheng said this, everyone present reacted immediately and showed shocked expressions.

Lawson's criterion!

This means that the fusion reaction is now self-sustaining, and the energy generated by the fusion itself is enough to allow the injected new fuel to enter a fusion state, and no external energy is needed to maintain the reaction!

No fusion device has ever achieved this result in the past.

Now, they have set another record!

No wonder Chief Engineer Xiao said that the heating could be stopped. It turned out that he had noticed that the internal reaction had reached the requirements of Lawson's criterion!

Everyone was shocked for a long time before they reacted and started celebrating.

Applause filled the entire control room.

"You old man, you react pretty quickly." Li Jiangan said unhappily.

"This only shows that your level is not good enough and you didn't think of it." Chu Lansheng said.

"I just don't dare to think that it has reached Lawson's criterion." Li Jiangan defended himself.

In response to this, Chu Lansheng just laughed and did not mock, because he was a little afraid to think about it at first.

In other words, before this, no expert in controlled nuclear fusion research in the world dared to think that they could achieve the Lawson criterion.

Once the Lawson criterion is reached, it almost means that there will be no need to input energy. As long as fuel is added continuously, there will only be output energy, and the efficiency of nuclear fusion power generation will be maximized!
This almost means that the dream of nuclear fusion has been half realized!
Only Cao Xu next to him looked confused.

This unscientific!

This is very unscientific!
Could it be that Xiao Yi has mastered the black technology of confining neutrons?

That’s not right either!
Even if the neutrons are confined, they have to hit the wall material, otherwise how can the heat be conducted outwards?
If it doesn’t conduct heat, how can we generate electricity?

The more he thought about it, the more he felt that his scientific views of so many years had been shattered.

Physics no longer exists.

……

(End of this chapter)