Chapter 773

Materials Research Institute, Xu Qingzhou is drinking tea with Academician Li Gang of the Institute of Plasma Physics.

"There are quite a lot of actions. The US is panicked."

Li Gang smiled lightly.

The series of measures recently released by the US are all telling the public a signal: we in the US are not behind; look, we have even considered future Mars colonization.

"The foundation of the US is still there, but if they want to catch up, they still have to spend some effort."

Xu Qingzhou smiled. In this year's experiments, he used quite a lot of black technology.

That is to say, the opponent of the US is not only him who has opened the brain, but also the scientific and technological superposition of the next ten years.

That side can only use the most primitive methods for now, smashing with a lot of manpower and funds, and improving the R&D speed of fusion devices through iteration after iteration.

"Don't talk about the Americans, even us, we were startled when we heard the news at the time."

Li Gang smiled bitterly. It went directly from the second level to the hour level. Who can withstand this?

"We are also lucky."

Xu Qingzhou said modestly.

The reason why Li Gang and the others are here is to discuss follow-up experimental cooperation. EAST experimental data covers the critical range of the Lawson criterion, which can cross-verify the engineering feasibility of the 1.18×10^21 keV·s/m^3 triple product target value of the demonstration reactor with Qiankun No. 1, and can also help predict electromagnetic interference risks.

Most importantly, Xu Qingzhou is a bit greedy for the researchers there.

Li Gang looked at the young man in front of him and couldn't help but sigh. "You, I'm afraid you have hurt Academician Zhang's face. He probably has a headache when he sees you now."

"We are just doing experiments step by step, but we didn't want to hit anyone's face."

Xu Qingzhou shrugged.

Of course, if someone takes the initiative to stretch their face over, there is no way.

Li Gang drank tea and still said: "If you want people here, just say it."

EAST doesn't know how far it has to go to achieve net energy gain.

Besides having regrets, they are more excited. Having been engaged in fusion for decades, now there is a chance to watch controlled nuclear fusion become a reality.

"Hehe, I was just about to tell you about this. Now it's the engineering construction of the demonstration reactor, and the device design. My people are really a bit stretched."

"Okay, so you kid have been thinking about my people for a long time."

November 15.

For Xu Qingzhou and the others, the 1-hour maintenance of Qiankun No. 1 is just the beginning.

The demonstration reactor is not just an enlarged version of the experimental reactor.

The experimental reactor can be stopped at any time, but the demonstration reactor requires stable operation for several months under extreme conditions.

"This is the four sets of data for the isotope substitution experiment."

Zheng Xu handed over a stack of reports.

The isotope substitution experiment is to solve the problem of hydrogen isotope retention.

Particle retention will lead to impurity accumulation, reduce the purity and performance of the plasma, thereby reducing the stability of the demonstration reactor operation, and also have an impact on the first wall materials.

The 1-hour verification of the experimental reactor can be considered as a "from 0 to 1" breakthrough in solving hydrogen isotope retention, but the demonstration reactor needs to verify the engineering maturity of "from 1 to 100."

As for why isotope substitution is needed, the demonstration reactor needs to use radioactive tritium (H) fuel, but tritium is highly radioactive, and direct experiments require strict protection and complex approval.

Therefore, deuterium (H) is generally used in experiments to replace tritium (H). Deuterium is non-radioactive but has similar chemical properties, which can safely verify hydrogen isotope retention behavior.

【Deuterium permeability—1.2×10^-12 mol/(m·s)

Thermal desorption peak temperature—798K

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