Demon School

When Mr. Military Officer came in, he held a gadget that kept flashing red lights. He used this thing to carefully sweep every corner of this room, even under the sofa, and did not let it go in the vase. It was n’t until half an hour later that the room was thoroughly inspected. 『≤

He nodded to Qin Feng and retreated silently; Qin Feng was relieved when he saw nothing, and he laughed twice, "Although the Cold War has passed for a long time now, ambassadors from various countries Consulates and consulates have always been the focus of intelligence departments, and we should be careful! "

It doesn't seem to be enough to just look at the room, right? Now there are a lot of long-distance monitoring equipment; it seems that after hearing the question from Lu Qiujian's heart, Qin Feng once again explained, "Just just indoors, there are similar equipment outside to shield this room completely! There will be no talk here Others know. "

"Several mainstream controlled nuclear fusion methods in the world are mainly inertial confinement fusion and magnetic confinement fusion. The former uses ultra-high intensity laser to irradiate deuterium and tritium targets in a very short time to achieve fusion The latter uses a strong magnetic field to confine the deuterium and tritium gas in a special magnetic container and heat it to a high temperature of hundreds of millions of degrees Celsius to achieve fusion reactions. At present, these two types of nuclear fusion are in the theoretical research stage, and no commercial reactor has been established. "Lv Qiu Jian understood that the other party probably only knew the significance of this project, but did not necessarily understand its specific situation, so he began to popularize it first.

"The national ignition device of the United States uses inertially constrained nuclear fusion. This project has been constructed since 1997 and has invested 3.5 billion US dollars. At present, no major breakthrough has been achieved." Lu Qiujian said according to continued, "China and the EU , India, Japan, South Korea, Russia and the United States are negotiating to open the International Thermonuclear Experimental Reactor Program (iter for short) is expected to use magnetically constrained nuclear fusion. "

"Well, I heard about this project. In 2003, the Government Administration approved China's participation in the negotiations. If this plan can be implemented smoothly, it will play a huge role in promoting China's scientific and technological level!" Qin Feng interjected, now watching The young man in front of him must have gone farther than them? Otherwise, it is enough to participate directly in this plan, so why should I pretend to be mysterious and tell myself this?

"Whether it is the National Ignition Plan of the United States or the International Thermonuclear Fusion Reactor Plan, it will promote the progress of human research on nuclear fusion and improve many high-end technologies such as superconducting technology, rare metal material technology, high-voltage technology, etc. The development of technology ... "Lv Qiujian said for a long time but he did not say their prospects.

"But." A bunch of words of appreciation finally came to a turning point, "but what is certain is that they have no way to achieve decisive results!"

"Why?" Qin Feng asked subconsciously.

"The reaction conditions of nuclear fusion require a high temperature of hundreds of millions of degrees in an instant. Only under such conditions will the fusion reaction occur, then this premise will cause two difficulties." Lv Qiujian raised two fingers, "The first 1. How to heat the fuel of nuclear fusion to this temperature; Second, what we want to install it with hundreds of millions of degrees of fuel, we must know that the surface temperature of the sun is about 5500 degrees; whether it is a national ignition device, international Thermonuclear reactors have no way to solve these two problems, so they may promote the development of science and technology in related fields, but to achieve controlled nuclear fusion, there is still a long way to go! "

"They must know these two difficulties too?" Qin Feng asked.

"On the first question, the national ignition device in the United States mainly relies on laser heating. Focusing the energy of multiple lasers at the same point, this is also the way the Shenguang project in China takes! It is like we use a magnifying glass to ignite the paper!" These materials are publicly available and it is not difficult to find, "As for how to contain the reactants, the main reason is to constrain the reactants in a closed ring to rotate them at high speed. To fix them in a closed space, so as to achieve This is the Tokmark device, the French-supra. The Russian t-15, the Japanese jt-60u, and our country's east in Anhui Province all adopt this method. "

"It sounds like both problems can be solved. But the way to solve these two problems is completely unfused! To heat the reactants in a short time, the reactants need to be stationary and the target of the laser, but the reactants Still, there is no way to restrain it in a confined space! "

"Of course, some people have recently proposed a solution for cold nuclear fusion, which is to reduce the temperature required for nuclear fusion (Iron Man seems to use this method); but the reason why the solar core can be 15 million degrees The reason for achieving fusion is because there is enough pressure. It is more difficult to achieve this level of pressure than to solve the above two problems! "Lv Qiujian finally finished the technical difficulties of controllable nuclear fusion.

"So, how are you going to solve these two problems?" After Lu Qiujian's commentary, Qin Feng also had a basic understanding of this problem, "Or do you have a new plan to circumvent these two problems?"

"It's too difficult to solve these two problems ~ www.readwn.com ~ I don't have a mature idea at present!" Lu Qiujian shook his head and said.

"So what was the small achievement you just said?" Qin Feng was not disappointed. He knew the significance of controlled nuclear fusion. If Lu Qiujian claimed that he had a perfect solution, he would have to doubt the other party's. Is the mental state normal?

"Tritium!" Lv Qiujian unveiled his card. "Now the fusion reaction needs to provide tritium continuously, but tritium is not unique to nature. It needs to be produced by the reaction of neutrons and lithium. The industrial production of tritium in the world is only a few kilos , Ca n’t even meet the one-year need in the iter plan, and I found a method that can theoretically increase tritium production! If this method proves to be effective, the difficulty of producing tritium will be greatly reduced. ”

Seeing that Qin Feng was still pondering the significance of this achievement, Lu Qiujian continued, "I also have some ideas about the improvement of the existing Tokmark device, but this will wait until I see the Tokmark device we are using after returning to China. confirmed!"

"I don't understand these too professional questions! But presumably you have information on the methods for increasing tritium output just now? Can you take me back to the relevant department for verification?" Qin Feng said.

After getting an affirmative answer, he asked again, "So, as a layman, I would like to ask, Dr. Lu, how much time do you think the controlled nuclear fusion needs to be from the application? What is this time? "(To be continued.)

Ps: I am automatically updated, and today I will change.