After dinner, Lu Yi and his group came to the tokmak device area of the laboratory, and through the radiation-proof glass, they saw that seven engineers wearing protective clothing were installing and replacing the inner wall materials.

Academician Wang next to him watched the operation of the engineers behind the radiation-proof glass, and every time he removed a piece of inner wall material, the expression on his face couldn't help but twitch.

This kind of replacement has been carried out countless times in Tokmak's research over the years, but it is completely different from the current mood.

It was Tokmak himself upgrading, and he was happy in his heart, but at this time he was making a wedding dress for the stellarman, which was just a tool to carry the inner wall material test.

What's even more terrifying is that because the material for the test is to be used on the demonstration reactor, the upcoming test will still far exceed the intensity of ordinary pulsed ignition fusion.

In order to ensure the accuracy of the data as much as possible, the tests to be started later will be intensified as much as possible within the limits of the tokmak unit.

"Wang, I won't break your tokmak device." Lu Yi watched the engineer's operation for a while, but said to Academician Wang next to him.

The old guy didn't even see him when he was eating, and asked the others that they had eaten a quick snack in advance, and then stayed in the lab.

"The HL-2A in the southwest has been under comprehensive maintenance for more than a month." Academician Wang turned his head to look at him, and his tone was very calm.

"Well, isn't that HL-2A, even if that device has a plasma turbulence model, the constraint time has not exceeded 400 seconds after the improved control scheme, but this one has reached 1200 seconds."

Lu Yi looked a little embarrassed, needless to say, the HL-2A in the southwest was almost completely scrapped because of this test.

This is still known that the neutron irradiation produced by ignition fusion will cause serious damage to the device, and the national industry and laboratories have prepared various spare parts in advance, but even if there is a replacement of spare parts, the HL-2A in the southwest is also on the verge of scrapping after many tests.

If the occasional ignition fusion of the experimental pile is a match, or the fleeting kind, then the intensity of the current test is a flamethrower, which is a hula and keeps spraying.

"The last time you came over, after you left, the EAST Tokmak unit took 13 days to maintain."

Academician Wang continued, and the other researchers next to him couldn't help but turn their heads with laughter.

"I can't help it, there are only a few nuclear fusion devices that can carry out ignition fusion in China, and the test materials are used in demonstration reactors, and there are also requirements for test intensity.

At present, only the EAST and the Southwest Institute of Physics can meet the standard. ”

Lu Yi's face was a little unbearable, and he fought back: "Lao Wang, I know that you have an opinion about me, and complain that the stellar mimic I am researching has robbed you of the title of tokmak and become the core of this nuclear fusion joint project."

But you don't know the national conditions of our country, first use the stellar simulator to complete the first commercial nuclear fusion reactor to complete the national strategic goal, and the follow-up domestic nuclear fusion field is still your Tokmak world.

Isn't it just to test the tokmak now, even if this thing is broken, it is not impossible to repair, if it is not for the fear that the stellar mimic will be broken and it will take too long to repair, I am too lazy to fly here every once in a while.

The commercialization of nuclear fusion has succeeded, and in the end the biggest beneficiary is not you researchers who study Tokmak......"

"Fuck your shit!"

Academician Wang interrupted Lu Yi's words with a flushed face, and said angrily: "If Lao Tzu had an opinion on you, he would not have taken the initiative to give way to you in the first place, if Lao Tzu complained that the stellar had robbed you of the title of Tokmak, I would definitely have a lot of ways and means to make trouble for you, and today you can't even enter the door of the EAST project!" ”

"Yes, yes, Wang Lao is discouraged, I will let people take it easy when the test is started later, and I will definitely not let the EAST device be scrapped."

Seeing that Academician Wang was a little anxious, Lu Yi hurriedly reassured, otherwise, if he accidentally got angry when he got older, it would probably be a big loss for the country.

After this period of contact, Lu Yi also found that this old guy is indeed as Professor Zhang of the University of South China said, the means of grabbing research funds are a little darker, but his personal style is very good, even if he is uncomfortable when it comes to national strategies, he can still let go of personal emotional disputes and give up his position.

Perhaps this is a characteristic shared by scientists who can stay in China, as for grabbing funds to become a student valve, this is a last resort in the environment, if you don't grab it, you will have no money, and if you don't have money, what will you do research with? Relying on that job and research for decades and still can't afford the salary of a house?

After waiting for more than half an hour, slightly longer than the original scheduled eight o'clock, EAST Tokmak completed the overhaul and the replacement of the interior wall material.

Because the ignition fusion test was about to be carried out with a certain degree of danger, several engineers checked each other three times after completing it before confirming OK.

Everyone's eyes looked at Lu Yi who was standing in the middle, and Lu Yi, who had long been accustomed to such a situation, looked at the picture displayed on the monitoring station, and said calmly: "Start the test!" ”

Airplanes!

When the start button is pressed, the temperature of the external magnetic field coil rapidly drops to the superconducting temperature under the action of liquid helium, a strong current passes through, and an invisible magnetic field is formed inside the Tokmak, and then the hydrogen is first injected into the plasma and the magnetic field is heated by the microwave to produce a linkage coupling......

Ordinary researchers are looking at the gorgeous plasma ribbon in the monitoring screen, and Lu Yi and other bigwigs are looking at the monitoring data refreshed in real time on another screen.

After looking at it for a while, Lu Yi frowned and asked Academician Wang next to him, "Don't you have any ideas for solving the problem of Tokmak's magnetic plane tear and magnetic island?" ”

"No, I thought of a few ideas inspired by the plasma turbulence model, but after actual experiments and improvements, the effect was not ideal."

Academician Wang shook his head with a dim look in his eyes, if these problems could be solved, it would be impossible for him to give way to Lu Yi.

The two chatted for a few words, and then first through the restraint of hydrogen plasma, the EAST Tokmak device verified that there was no problem, and the operator on the main console shouted: "Prepare to inject deuterium tritium to start ignition fusion!" ”

As the words fell, everyone's attention returned to the tokmak, and a pipe leading to the inside was directly injected into the mixture of more than 0.918 grams of deuterium and tritium, which was almost the limit of the EAST tokmak device.

Rumble!

The deuterium-tritium mixture is caught in the plasma, and the fusion reaction occurs rapidly at a temperature of more than 100 million degrees Celsius.

"Quick, save the data, monitor the operating status of the tokmak!"

The whole laboratory was instantly busy, sequentially dividing the division of labor to save data and monitor the operating status of Tokmak, the data was refreshed too quickly, Lu Yi and the others did not look at the frantically refreshed data screen this time, but looked at Tokmak's temperature monitoring data.

At the same time, the pipeline injected with the deuterium-tritium mixture is also supplemented with deuterium-tritium according to the fusion situation in the plasma at all times to ensure the stability of the fusion intensity.

In the case that the tritium recovery device of Tokmak has not yet been perfected, tritium can only be used in such a luxurious way.

"Show me the temperature data from last night's test, and the temperature change on the inner wall of No. 18 is a bit problematic."

After only looking at it for a few seconds, Lu Yi opened his mouth to ask for the temperature change data from last night's test.

In order to ensure the maximization of the test efficiency, the beryllium ceramic alloy urgently manufactured by Shangjing Materials Laboratory is the same inner wall manufactured according to the first inner wall parameters of EAST, and the entire inner wall is divided into 30 areas, and the beryllium composition of the ceramic alloy in each region is different.

"Chief Engineer Lu, this is last night's temperature change data."

These data have been saved for a long time, and after hearing Lu Yi's request, the researchers on the control table immediately called up last night's data on a screen, and displayed it in a graph.

"There's a problem, Xiaomeng calculates this equation."

Lu Yi took out his notebook and quickly wrote a few data, listed the approximate formula and showed it to Professor Lin next to him, and the result was calculated by Professor Lin in a few seconds.

"Adjust the temperature control parameters to reduce the heat dissipation power of the first inner wall by 16.7 percent." Seeing the demerits calculated by Lin Meng, Lu Yi opened his mouth and ordered.

"Chief Engineer Lu, reducing the heat dissipation power of the first inner wall will cause the temperature to rise faster, and the test time will be shortened, which is not worth it."

Professor Cai, who was next to him, hurriedly shouted when he heard this order, the cost of starting a tokmak ignition fusion is not low, and everyone should extend the test time as much as possible to obtain more data, how can they shorten the time.

"It's okay, let's execute it, I'll pay for the test this time!"

Lu Yi waved his hand to stop Professor Cai's persuasion, and reaffirmed the order to the researchers on the console.