What Chen Xin brought by helicopter is not strange, but the radioactive element materials he asked for from scientific research institutions.

However, Chen Xinyao's radioactive element materials are different from those previously used to make isotope thermoelectric batteries, because they are a batch of weapon grade enriched uranium with more than 90% uranium 235.

And the weight from the helicopter is enough to build a 100000 ton tactical nuclear bomb.

If it is before the disaster, or under normal circumstances, it is absolutely impossible for the state to hand over so much weapons grade enriched uranium to individuals. Even experts studying nuclear weapons must be subject to strict supervision before they can have access to these nuclear materials.

But now, unlike in the past, Chen Xin has shown his value to the country, and has shown that he has the ability to use these nuclear materials, and has put forward the justifiable reasons for using these weapons grade enriched uranium. Only when the country agrees to give these weapons grade enriched uranium to him.

Even so, along with this batch of approved raw materials came another order, which was directly given to the commander of the special forces in front of Chen Xin.

That order requires the special forces to supervise the use of these nuclear materials while protecting Chen Xin. In case of loss or leakage, the special forces will control the situation at all costs.

Although Chen Xin was not targeted in the order, he could still hear that if he really intended to do something bad with these approved materials, the special forces who were originally protecting him would point their guns at him.

Chen Xin doesn't care about this situation. After all, it's the raw material that can build a 100000 ton tactical nuclear weapon. Even if Chen Xin doesn't use it to make a big bomb, he just makes them undergo fission reaction. If something goes wrong, it will be the next Chernobyl or Fukushima.

In such a situation of high threat, these special forces as a safety valve to restrict Chen Xincai's normal operation. No matter how much the country trusts a person, there will still be some security measures.

As for why Chen Xin needs this kind of weapon grade nuclear material, it is because he wants to build a small high-power nuclear fusion furnace.

If you are familiar with the design of Golder's works, I'm afraid you can understand that the so-called nuclear fusion furnace is the power source of Golder.

This kind of thing can be made theoretically, but it is not so easy to realize technically, otherwise small nuclear reactors will not be so difficult to produce, and controllable nuclear change is still in the stage of theoretical improvement.

However, this is not a problem for Chen Xin. He is sure enough to create what he needs.

As for why he was surprised by the list of documents sent, it was because there was a special supply along with the nuclear materials.

Frozen fresh vegetables, fruits, beef and mutton, as well as milk and eggs

If these things arrived before the disaster, they would not be too exaggerated. They are only of high quality, which ordinary people may not be able to buy or see.

But in today's environment, these things are very luxurious and precious.

Especially beef and mutton, people may be hungry, where to feed cattle and sheep? Even if cattle and sheep can only eat grass, the problem is that it is unrealistic to get a lot of grass in this environment.

It can be seen that this batch of materials is really special.

"These materials are the treatment you should enjoy for Comrade Chen Xin. Your contribution to the country is not commendable with just a little food. These things only enable you to eat well and have more energy to contribute to the country." The pilot who came to deliver the supplies was obviously told before he came, and he specially explained it to Chen Xin.

Hearing what the pilot said, Chen Xin thought it was a bit exaggerated, but after scratching his head, he was very happy to accept these things.

As the pilot said, it's just a little bit of food, which is nothing compared to having a whole special forces force to protect themselves.

Moreover, in terms of Chen Xin's contribution to the country, it is entirely possible to enjoy these things, or even better things.

So he accepted it with peace of mind, and let the commissar of the special forces help him put these things away.

As for the nuclear raw materials delivered with the materials, we need to take them seriously. Although the radiation dose of these weapons grade enriched uranium is very small before the chain reaction begins, and it can be completely exposed without protection, we must pay special attention to the transportation and storage.

The commander of the special forces even called a combat team to take charge of the safety of these nuclear materials. Among them, Chen Xin's eyes could be seen from the heavy machine gun and small caliber machine gun carried on the exoskeleton of the heavy firepower.

Is it OK for these heavy weapons originally used for anti vehicle to directly use individual equipment to hit people with the help of exoskeleton?

Just as Chen Xin watched these special forces move away the nuclear materials, the pilot came to Chen Xin and said, "Comrade Chen Xin, there is another thing I want you to do for me. Do you think it's ok?""What's the matter?" Chen Xin turned to look at the pilot, a little curious about what he had.

"The thing is, our plane is used to test the new air filter, which you have improved before. This time we fly here to test the performance of the new air filter, so I want to ask you to see if there is anything that needs to be improved." The pilot said, then pointed to the straight 20 behind the engine intake, where the new air filter is installed.

Hearing what the pilot said, Chen Xin nodded after picking his eyebrows: "it's a piece of cake, but I need to take things down. Will it affect your mission?"

"No, no, our task is to test the effect of the new air filter and send things to Comrade Chen Xin. There is no strict limit on the return time." Hearing that Chen Xin was willing to help, the pilot quickly explained, "and if we really need it, we can also contact the superior through the communication equipment to explain the situation, which will not delay the mission."

"Well, you wait for me, I'll get the tools." Chen Xinjian's pilot said so, but he didn't say anything more. He just went back to the office and put out his power armor.

Wearing power armor, he went to the side of zhi20. Chen Xin pointed to the air inlet of the engine and said to the pilot beside him, "come here and help me. I want to take things down first."

Then he opened the mechanical arm and began to remove the air filter installed on the air inlet of the straight 20 engine.

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