Chapter 503 Write a Letter First

(Before going to bed at night, I always felt that Chapter 504 was not well written, so I got into a tangle syndrome and got up to modify the plot after lying on the bed. Those who have subscribed can go back and read it again. It is not charged again.)

Hearing this question, Xu Chuan smiled, leaned back in his chair, and said: "It is impossible to give up magnetic confinement. We have almost no research on the route of inertial confinement."

"And magnetic confinement has now successfully achieved fusion power generation. With such advantages, we can never give up magnetic confinement and do inertial confinement."

"As for which route to change."

After a pause, he continued: "Of course, whichever route has more advantages in plasma confinement will be taken."

Hearing this answer, Liang Qu said without hesitation: "If you say that plasma confinement is more advantageous, it is naturally the stellarator."

In the decades of human development of controlled nuclear fusion, magnetic confinement and inertial confinement are two completely different categories.

Inertial confinement is now denied, and under magnetic confinement, tokamaks and stellarators are undoubtedly the most promising routes.

Of course, the only device that can achieve fusion now is the Tokamak.

After all, the Dawn fusion reactor has already spoken with facts.

However, when it comes to the control advantage of plasma, the Tokamak is not the best. Whether it is the stellarator in the inertial confinement or magnetic confinement route, it is stronger than the Tokamak in the confinement of high-temperature plasma.

But

After a slight pause, Liang Qu remembered something, looked at Xu Chuan with some confusion, and asked cautiously: "But... Didn't you personally deny this route?"

When we were studying the Dawn fusion device, we discussed which route to take.

This big guy personally denied the stellarator route at the beginning, and now he is bringing up the old matter again and wants to go back. Is this considered... reversing the course?

Hearing this, Xu Chuan smiled and explained: "Yes, when we were studying controlled nuclear fusion, I personally decided on the Tokamak route, but I never said that the stellarator route was not feasible."

Liang Qu recalled carefully, as if this person did not say such a thing.

After thinking for a while, he said, "But the internal temperature of the stellarator is probably difficult to compare with that of the tokamak device, right? It will be more difficult to achieve ignition."

Xu Chuan nodded and said, "Indeed, this is the disadvantage of the stellarator."

"The reason why I thought the tokamak device had more advantages was that the plasma performance in the tokamak chamber far exceeded that of the stellarator."

"The tokamak device can easily achieve high plasma temperatures of billions of degrees, but the stellarator has to achieve billions of degrees of temperature, which is much more difficult than other magnetic confinement routes."

"You also know that for controlled nuclear fusion, what really affects the fusion efficiency is the reaction cross section, that is, the probability of collision between positively charged nuclei in the plasma."

"And the higher the temperature, the more active the plasma, and the greater the probability of collision between positively charged nuclei. So after solving various problems, the tokamak device is more suitable for large-scale power generation than the stellarator."

"But to say that it is equal Plasma confinement, among all the routes of magnetic confinement, no route can compare to the stellarator. "

"The external magnetic field of the stellarator is the strongest, and there is no ohm transformer inside to start the plasma current, let alone the problems of twisted membrane, magnetic surface tearing, resistance wall membrane, etc. "

"The disadvantages are that on the one hand, the engineering manufacturing is very difficult, and on the other hand, the internal plasma temperature is low, making it difficult to achieve ignition fusion. "

"But for us, these two points should be solved. "

Liang Qu thought for a while and said, "But we don't have a stellarator."

After a slight pause, he added, "Don't talk about us, even China doesn't have complete stellarator technology. As for foreign countries, the only countries that study stellarators are probably Germany and Xiaoguike, a small island country."

Before the Dawn Fusion Reactor realized the controlled nuclear fusion technology, the fusion methods that took the magnetic confinement route were mainly tokamaks and stellarators.

Compared with the mainstream international tokamaks, the influence of stellarators is much smaller.

Before the Dawnbreaker fusion reactor was realized, there were only two countries that studied stellarators and had detailed and complete stellarator technology.

One was the Germanic country, and the other was a small island country.

Other countries, even the United States, did not have complete technology.

On the one hand, the manufacturing of stellarators was too difficult, and on the other hand, the United States mainly studied inertial confinement.

Some other countries, such as Australia, India, South Korea, etc., although they also had stellarators in name, they were basically just for show and could only do simple experiments.

As for China, there was indeed no complete stellarator.

Originally, two years ago, Nanhua University and Australia finalized the cooperation and planned to introduce Australia's H-1 stellarator in the second half of this year.

But after the Dawnbreaker fusion device successfully achieved commercial use of ignition power generation last year, this matter naturally disappeared.

After thinking for a while, Xu Chuan said, "I will find a way to solve this problem. You continue to do experiments and collect more data."

Liang Qu nodded and said, "Okay, we will continue to conduct experiments and collect data step by step."

After Liang Qu left, Xu Chuan leaned back in his chair and stared at the white ceiling again and again.

China does not have any stellarators at all, and it is not realistic to build one from scratch.

If you start researching and building from scratch, you don't know how long it will take.

Even if everything goes well, it will take five or six years. If there are some problems in the middle, the time will start from ten years.

Although the manned space flight and lunar exploration projects are far less urgent than the controlled nuclear fusion project, they can be done slowly.

But it is not worth spending so much time on this for him personally.

After excluding self-development, the only way left is to buy ready-made ones from others and then conduct research and transformation.

"I don't know what the situation is with the Planck Plasma Institute's Spiralite-7X. Is there a chance to buy it back? If not, the predecessor of Spiralite, WEGA, should be okay, right?"

Staring at the ceiling, Xu Chuan muttered to himself.

Last time, he took the ASDEX device from the Planck Plasma Institute, and then transformed and studied it to complete the research and development of controlled nuclear fusion technology.

Although the controlled nuclear fusion technology has nothing to do with the ASDEX device, it is unknown whether the Planck Plasma Research Institute will think so.

In this case, will the other party still sell it?

Or if it sells, what price will he have to pay?

Forget it, don't think too much, write a letter first.

Shaking his head, Xu Chuan retracted his gaze and took out the letter paper from the drawer.

"On the feasibility of stellarators in the miniaturization of controlled fusion technology and the application prospects of miniaturized fusion reactors"

Regardless of whether it succeeds or not, he has to try to get some funds first.

"Dear"

PS: I didn't finish writing yesterday's chapter. I changed it and then couldn't sleep. I might as well write one more chapter to make up for the last update (one update is left). There are two more updates today. Please vote for the monthly ticket