Technological power starts with upgrading lenses.

Chapter 376 Mr. Kang, you are really punished!

Kang Chi in the video took a sip of tea and then continued: "The advantages of the magnetic confinement route are obvious. It can significantly reduce the material requirements of the experimental device, and the fusion reaction can be maintained for a very long time."

"But its shortcomings are also obvious. The energy efficiency ratio of magnetic confinement is too low. In order to maintain a high-intensity magnetic field, it requires a very large amount of energy. It is quite difficult to increase the ratio of input and output."

"In the early stages of nuclear fusion research, humans mainly focused on experimental verification, so tokamak and stellarator can become the mainstream. Through these devices, we have indeed successfully 'captive' of nuclear fusion."

"But 'captive breeding' alone is not enough. As nuclear fusion research gradually moves from the early experimental stage to the commercial stage, the ignition duration has gradually become less important, and the improvement of the Q value is what really needs to be solved in the future. The problem."

"At this time, the shortcomings of the magnetic restraint device will become more and more obvious. This kind of device that relies entirely on magnetic restraint is actually just a 'shortcut' taken as a last resort to reduce material requirements in the early stage..."

When he saw this, Zhong Weijian couldn't help but pause the video again and asked Cheng Tao: "What do you think?"

Cheng Tao shook his head helplessly: "I remember that before Kangchi became the chief engineer, I said that I felt that the tokamak had reached a dead end."

"Although Kang Chi's joining has restored my confidence a little bit, if even he says this now, it means that this road may really not work..."

When Oriental Super Ring was first established, Cheng Tao was the most staunch and powerful supporter.
As the technical general consultant of the EAST project, he has devoted as much effort to the Oriental Hyperloop as Zhong Weijian.

And until there is no real result, no one can be sure which route is passable or impassable, flat or tortuous.

"I personally think so." Kang Chi directly gave a positive answer, "Of course, magnetic constraint is not without its merits. In some links, the role of magnetic constraint still plays an irreplaceable role, so The word I used just now was actually 'completely dependent on magnetic constraints'."

"In other words, what you are optimistic about is actually a device that combines magnetic constraint and inertial constraint?"

But he quickly suppressed this terrible thought.

A teacher from the Physics Department of Jiangsu Province University quickly asked Zhong Weijian’s most wanted question on the spot.

"So whether it is a magnetic confinement or inertial confinement device, in addition to controlling the energy after fusion occurs, the greater purpose is actually to generate high pressure so that the device can produce nuclear fusion, which is commonly known as ignition."

After calming down, Zhong Weijian continued reading.

Therefore, after hearing what Cheng Taodu said, Zhong Weijian's original firm belief in Tokamak could not help but feel a little shaken at this moment.

"We already know that the conditions for nuclear fusion to occur in nuclear fuel are high temperature and high pressure. These two conditions are strongly correlated. The greater the pressure, the greater the temperature will naturally be."

"Yes." Kang Chi nodded and opened the next page of the PPT, "This is what I want to explain to you next, other non-mainstream controllable nuclear fusion technology routes."

He has always believed that the paths of scientific research are actually the same, the only difference is the degree of twists and turns of different routes.

"So you think that the current mainstream magnetic confinement devices cannot help us realize the commercialization of controllable nuclear fusion?"

"The magnetic confinement device has limited magnetic pressure, so it has always relied on prolonging the reaction time. To put it bluntly, it means simmering slowly. Therefore, the energy generated by nuclear fusion is relatively stable and has low efficiency. At the same time, it requires a large amount of energy to maintain Magnetic pressure.”

"Since the magnetic restraint is weak and the efficiency is low, is it possible to add external force to help pressurize the device?"

"This is what the teacher just mentioned, a device that combines magnetic constraint and inertial constraint. In professional terms, it is a magnetized target device." "So to understand what a magnetized target device is, we first have to know what magnetization is. Constraints and Inertia Constraints.”

"Among them, magnetic constraint, as I just said, is the main direction at present, but the development of inertial constraint is actually not slow. Some solutions are even theoretically easier to implement than magnetic constraint."

"Inertia means that by applying external force, nuclear fuels collide together at extremely high speeds, thereby producing a fusion reaction. In fact, hydrogen bombs are created using inertial constraints."

Having said this, Kang Chi directly pulled up a blackboard and drew an oval on it:
"This is a hydrogen bomb. We will first put an atomic bomb inside, put lithium deuteride on the other side, and then detonate the atomic bomb inside."

"After the atomic bomb explodes, it will emit high-energy X-rays. After these rays hit the outer shell, they will rebound and then gather on the lithium deuteride. The ablation material on the surface of the lithium deuteride will expand and melt at high temperature, and the shock wave generated will destroy the deuterium. Lithium is compressed inward, and at the same time, the atomic bomb explosion will produce a large number of neutrons, which will react with lithium atoms and become helium + tritium.”

"Then a large amount of deuterium and tritium move in the very small space of the hydrogen bomb, and then the collision causes nuclear fusion, and then boom - the hydrogen bomb explodes."

When the video was posted here, you can imagine how many comments there were...

"Is it okay to bang?"

"Damn it, Mr. Kang is teaching us how to build a hydrogen bomb?"

“I feel less sleepy instantly!”

"Good guy, are you making a hydrogen bomb live on live broadcast? Mr. Kang, you are really punishing me!"

"You're overthinking it, No. The mass-energy formula E=mc is here. If you take it, can you build an atomic bomb?"

"That's right, you can actually find the structural diagram of a hydrogen bomb by just searching on the Internet, but how many countries can build a hydrogen bomb?"

"That's because they didn't listen to Mr. Kang's open class!"

"..."

Seeing the barrages floating like snowflakes on the video, Zhong Weijian couldn't help but frowned: "How do you turn off these dense words?"

Cheng Tao: "..."

After Kang Chi introduced the principle of the hydrogen bomb, he wiped the whiteboard again, drew a straight line, and then drew an ellipse below:

"Suppose this straight line is the ground. We dig a hole in the ground, then throw a miniature hydrogen bomb into it, let it explode inside, and trap the energy released by the hydrogen bomb inside. Can we use this energy to generate electricity? "

"The technical term for this plan is 'nuclear explosion fusion power station'. It was first proposed by the Los Elamos National Laboratory of M country, and it is also the originator of the inertial confinement route."

"Later, Academician Peng of my country optimized this plan, making it more feasible."

(End of this chapter)