With Yu Mu with him, Xu Chuan quickly rushed towards the gate of the experimental reactor park.

At the entrance to the base, several special super-heavy trucks are parked there.

Xu Chuan stepped forward quickly and checked around the vehicles.

It is indeed an ICFR heating antenna delivered from Luyang, and it is a complete set.

For the Daybreak Demonstration Reactor project, after the transformation of these ICRF heating antennas, the adaptation of the demonstration reactor is almost ready for use.

After all, the equipment itself was built according to the standards of the demonstration reactor project.

Originally, it was sold to ITER in exchange for a sum of money and some technology, but Huaguo has now withdrawn from ITER, and these things cannot be sold to ITER again.

On the one hand, Europe probably won't buy it, after all, buying China's equipment now is considered an enemy on the road to controlled nuclear fusion.

On the other hand, even if they buy it from Europe, it is impossible for them to sell these ICRF antennas to ITER.

After all, compared with other Western countries, China is relatively ahead in microwave heating, and it is also a rival when it is sold.

"I didn't expect him to send this thing over."

On the side, Peng Hongxi, who also received the news, looked at the ICRF heating antennas in these super-heavy trucks with some emotion.

Xu Chuan was a little curious and asked, "Does Elder Peng know its specific performance parameters?" ”

Hearing this, Peng Hongxi nodded and said, "Actually, it is derived from the microwave heating antenna technology I designed before. ”

"After I retired, Chen Ming continued to research on microwave heating technology with people from Luyang, and today's ICRF antenna heating technology is also well-known in the world."

"As for the one you're looking for, I really know its performance parameters. After I found out, Lao Chen showed me some information. ”

"This set of ICRF antenna heating equipment is designed to provide continuous wave heating for plasma with a long pulse of up to one hour, with a frequency range of 30~100MHz, a transmission line impedance of 50Ω, and a heating power of 1.5~3MW."

"Aside from these conventional parameters, the most critical core point is that the vacuum feeder of this ICRF antenna device is a redesigned crank-shaped vacuum feeder, which can withstand ultra-high voltages of up to 120KV or more."

Hearing this, Xu Chuan's expression was a little moved.

I have to say that judging from the performance parameters in the mouth of Academician Peng Hongxi, the performance of this set of ICRF heating antennas is quite strong.

The Ion Cyclotron Heating (ICRF) antenna is one of the most critical components of controlled nuclear fusion, which plays the role of ignition to raise the reactor chamber and maintain the temperature in the reactor chamber.

In the ICRF heating antenna, the vacuum feeder is the core key point, on the one hand, it has to withstand extremely high current and voltage, and on the other hand, it also plays the role of insulating vacuum and hot nitrogen.

During the operation of the ICRF antenna, the voltage between the inner and outer conductors connected to the feeder can be as high as 45KV, so increasing the breakdown voltage of the feeder and reducing its dielectric loss is one of the key technologies in the feed design.

In addition, improving the voltage resistance of the feeder can reduce the occurrence of ignition incidents, thereby effectively improving the safety of the ICRF antenna and even the overall device.

The bearing capacity of 120KV can be described as a real black technology.

You must know that most countries that have the ability to study controllable nuclear fusion have a voltage withstand capacity of about 50KV for the vacuum feeder manufactured by the sky. And the set in front of me has directly more than doubled.

Chen Mingji sent him this set of equipment, which was really a great gift.

Not only did it save him time to build it himself, but it was also better.

After arranging for the engineers to move the equipment into the engineering base, Xu Chuan and Peng Hongxi returned to the office.

After making a pot of tea, the two had a rare moment of leisure.

When talking about the Luyang EAST fusion device and hearing that Chen Mingji resigned from all his positions and left the field of controlled nuclear fusion, Peng Hongxi also sighed a little.

"To be honest, Lao Chen's ability is still very good, otherwise he would not have brought the EAST device to the top three in the world on the road of tokamak device over the years. The development of Luyang is actually quite good in his hands, but when he encounters you, the demon, the progress seems to be a little slow. ”

"If he can stay and continue to study some problems with the engineers from Luyang, I believe he can still make some results."

Xu Chuan smiled, took a sip of the teacup, and said, "Everyone has their own choice, let him be." ”

After a pause, he continued: "After he talked to me for a while some time ago, I can understand his decision. ”

"I have been in charge of the Luyang Controlled Nuclear Fusion Project and have been sitting on the leader for so long, if I want him to come to my side now to assist me and achieve controlled nuclear fusion, I am afraid I can't do it."

"Moreover, for the domestic field of controlled nuclear fusion, even if I make these achievements with Dawn, it may not convince everyone, after all, there is no real controlled nuclear fusion technology now."

"He sat there, maybe someone might be pulling the tiger skin flag, and in that position, why not sit on the fire and roast."

"He probably wants to use his retirement to allow me to completely take over the banner of the domestic controlled nuclear fusion field, and for him, in fact, like us, they are all people who are thinking about the realization of controlled nuclear fusion technology."

"Although we have had some misunderstandings because of some differences in concepts, these are not a big deal."

Hearing this, Peng Hongxi sighed and said softly: "I just think it's a pity." The promise of controlled nuclear fusion technology is at hand, but what if it lasts for a while? ”

"Decades of ups and downs have come and gone, so why retire now?"

Xu Chuan thought for a while and said, "Probably because he has always held this dream and hopes to see controlled nuclear fusion realized, he chose to retire." ”

Hearing this, Peng Hongxi didn't speak again, but there was some regret on his face.

That's probably the most appropriate way.

It's just that from his point of view, it's a little different.

After all, the two had worked together for so many years.

For him, a colleague who has gone through ups and downs all the way, and who has struggled since the founding of the People's Republic of China, has left this field.

Although the other party deviated from the track because of the arrogance or thoughts in his heart, in the end, he used his own departure to send the trajectory back to the right path.

"By the way, regarding the issue of tritium self-holding and tritium retention, a set of plans designed by my side these days, Mr. Peng, can you take a look?"

After drinking a cup of tea, Xu Chuan got up, took out a stack of manuscript paper from the drawer, and handed it over.

Seeing that he was talking about business, Peng Hongxi also put down the teacup in his hand, took the manuscript paper with a serious face, and flipped through it.

After waiting for more than ten minutes, he put down the manuscript paper, looked at Xu Chuan with sparkling eyes and asked, "Lead-lithium mixture molten salt technology?" Kind of interesting, how did you come up with this. ”

In controlled nuclear fusion technology, tritium self-sustaining is a systemic problem, but tritium self-sustaining is a key problem to maintain the operation of reactors.

The transport of tritium in the breeder is a very complex process due to the fact that the 14MeV fusion neutron produced during the operation of the fusion reactor and the transmutation product hydrogen helium will produce various defects in the tritium breeder, which will affect the osmotic retention behavior of tritium.

At present, in the research process of controlled nuclear fusion in various countries, there are generally two routes for tritium self-sustaining technology.

There are two types: solid proliferator and liquid proliferator.

From the name, it can be understood.

The solid-state proliferator is made of high-temperature ceramic pellets made of lithium silicate, lithium titanate, lithium zirconate, lithium oxide and other materials, and then placed in the cladding of the first wall, and then produced tritin by high-energy neutron impact.

During operation, the 14MeV high-energy neutrons produced by the deuterium-tritium fusion reaction react with the lithium in the pellet to form tritium, which is then extracted by helium purging at a suitable temperature.

The disadvantage is that the solid-state tritium multiplier has a low tritium multiplier capacity due to the low lithium mass fraction, and a high-cost neutron multiplier needs to be arranged.

This is its main drawback.

The liquid breeder uses liquid metals containing lithium, such as lead, lithium, LiPb, lithium Li or molten salts such as fluorine, lithium, beryllium, FLiBe, etc. as the propagation material.

Liquid proliferators offer a number of advantages over solid proliferators.

For example, the high tritium value-added ability, the high content of lithium Li atoms in the liquid state, and the neutron multiplier itself contains neutron multiplier elements such as lead Pb and beryllium Be, so there is no need to add neutron multiplier.

Or the complex geometry and adaptability, which is liquid after all, and can fill every cladding without the need for complex machining processes.

Or there is no life limit, and the liquid material can be exported at any time, changed in flow, without downtime, etc.

However, liquid lithium materials also have huge defects in the process of tritium self-sustaining.

In a magnetic confinement fusion reactor, the high-temperature plasma is confined by a high-intensity magnetic field.

The strong magnetic field not only confines the plasma, but also has a negative effect – causing a magnetohydrodynamic (MHD) effect.

When the conductive fluid moves in the magnetic field, it will generate an induced electromotive force, which in turn will produce an induced current, and the induced current interacts with the magnetic field to produce a volume force in the opposite direction, that is, the Lorentz force, which in turn hinders the fluid movement, that is, the MHD effect appears.

The MHD effect not only seriously affects the flow characteristics of liquid metals, but also greatly increases the corrosion problem of structural materials.

In addition to this, it can also cause changes in turbulent flow characteristics, suppressing turbulence and affecting the heat transfer performance of the fluid.

If these problems are not solved, the problems caused by the MHD effect of liquid lithium will cause great harm to the development of the liquid cladding of fusion reactors and the safety of the entire fusion reactor system.

In this respect, it is far less usable than the solid-state proliferation cycle.

Therefore, on the side of the Daybreak Research Institute, although there are two research routes of solid-state liquid lithium proliferation, the main direction is still on solid-state proliferation.

Because it is safe, it will not affect the controllable nuclear fusion reactor.

However, on the manuscript paper handed over by Xu Chuan, he saw the hope of solving the problem of liquid lithium multiplication tritin.

PS: Ask for a monthly pass.