The rays produced by nuclear radiation are high-energy particles.

These energetic particles hit the semiconductor components, causing changes in the parameters of the components and short circuits in the equipment.

At the same time, these high-energy particles have extremely penetrating properties. Especially the gamma rays inside, as the energy increases, it can easily penetrate several tens of centimeters of lead plates. In industry, gamma rays are also used for metal flaw detection.

It is more penetrating and more destructive than X-rays, which are more widely used.

In order to block harmful rays from nuclear radiation, the technical team led by Yota Watanabe used a special alloy to shield the rays. This alloy does contain a metal bismuth component.

The master of ingenuity ridiculed the Japanese experts for using bismuth alloy to isolate rays, which is very outdated and very degrading.

This sentence made Yota Watanabe, who presided over the design of the scorpion-shaped robot, sneer.

His smile contained a kind of extreme self-confidence in the professional field, and a disdain for the layman.

"Indeed, there are many metal materials with larger atomic numbers than lead and bismuth. ”

"For example, the atomic number of uranium is 92. ”

"Oh I forgot, uranium has strong radiation, and the core of the fuel rods is uranium metal. With it, semiconductor electronics will ruin faster. ”

"It doesn't matter, there are other metals. "There is also neptunium metal with atomic number 93, but I remember that it has a half-life of only two and a half days, which is almost non-existent in nature, and can only be synthesized artificially." ”

"It's okay~It's okay~"

"I also know several metals, such as einthony, which has a half-life of twenty days. But it has an atomic number of 99. It's just a pity that it is also radioactive, and the price may be hundreds of millions of dollars a gram. ”

Watanabe Yangtai shook his head and thought for a long time, pretending to be suddenly enlightened, and said in surprise: "I also know a metal element, and its half-life is full twenty years. ”

"Have you heard of actinium?"

"Last year, your Huaxia high-energy atomic furnace prepared 2.3 grams of actinide in one year. ”

"Haha~"

The three disciples of Yota Watanabe laughed and leaned back together.

Huaxia only prepared 2.3 grams of actinide last year, how to measure this with money, and how to buy it with money?

It is not necessary for the whole world to work together for decades to make a shielding shell.

It is true that tens of thousands of tons of bismuth metal are a ton, but it is already the most suitable metal that can be found under the existing scientific and technological conditions. Because its half-life is no longer measurable in numbers, it can exist in the world forever, longer than the age of the universe that has existed for 15 billion years. At the same time, bismuth metal is a metal with almost no radiation, and the bismuth alloy they manufacture is not comparable to ordinary bismuth metal.

Metal bismuth upwards, 93~109 large atomic number metals, all transuranic metal elements.

They have strong radiation characteristics, of which only the first four are stored on Earth in extremely rare contents, and the rest all need to be prepared artificially, and the annual yield is often calculated in grams.

After that, there are metals that humans can't even prepare, and they only exist in symbols, or in the universe, some depth that humans can't reach in a lifetime.

After listening to Yangtai's explanation, Zhou Yangwen on the side, and another disciple of Academician Liu, were completely dumbfounded. It's really alive to learn all the time, and the academician in front of him, Academician Yotai Watanabe, is probably memorizing all the characteristics of the world's known metal elements.

At the same time, after he said this, Zhou Yangwen also played gongs and drums in his heart. Since those metals with larger atomic numbers are either radioactive or do not exist in nature.

That......

What method was used by the giant beast industry, Zhou Yang observed, and knew that the experimental robot shell was not lead, let alone metal bismuth. To say it, the color seems to be a little like stainless steel, but Zhou Yangwen knows that this is impossible.

"So. Watanabe Yangtai suddenly said: "Please tell me, this mechanical automation expert of the giant beast industry." ”

"Which metal did you use, a metal that is more advanced than bismuth metal?"

In the face of the proud and confident Yota Watanabe, the delicate master didn't even give an explanation, and directly handed him the robot in his hand. The latter's face began to be full of disdain, and after tens of seconds, the disdain turned into contempt.

A minute later......

Yota's eyes widened and widened, his scalp tingled, and he tapped the shell of this product with his fingers no less than fifty times, but with each blow, the disbelief in his eyes magnified once.

What is the atomic number of iron?

Iron has an atomic number of 26 and in the iron family, it has numerous branches. For example, steel, such as stainless steel. But no matter what, when you hit it with your hand, there will be a crisp sound coming back, and some experienced masters can judge the quality of the iron according to the sound.

Another example is aluminum with atomic number 13, which has a crisper sound. But if it is replaced with gold with atomic number 79, the sound is very small, and even if a gold ring falls on the concrete floor, there is not much echo. As for lead, which has atomic number 82, the sound is even less.

This is the physical property of metals, and generally the higher the atomic number, the softer the metal. But now the metal shell in front of Yota Watanabe has completely subverted the common sense of the past.

It is hard and feels like steel to the touch. But it's surprisingly heavy, and there's no metal echo there. Yota Watanabe, who did not believe in evil, even took out a metal key and gently tapped the surface of the metal shell in his hand.

"Knock~Knock~"

The echo is small, and only the metal key seems to be vibrating.

The metal material in front of him, Watanabe Yang dared to guarantee that he had never seen it. But Watanabe Yang dared to guarantee that the atomic number of the metal material in front of him was definitely higher than that of the metal bismuth.

"This ...... It can't be, you can't have the ability to change the atomic number of metals. Watanabe Yang was so crazy that he couldn't recognize the piece of metal in front of him, and he was terrified, "If you have this ability, you will be able to master the great technique of turning stones into gold." Albert Einstein can't match your achievements......"

"No... It's impossible to ......" Watanabe Yang was completely stunned, and the other three disciples were so frightened that they couldn't breathe as if they were being held under by a transformer.

"Reason... Theoretically, changing the atomic number requires a huge amount of energy... energy, which is impossible. ”

"Is there a problem with this little old man?" said the metal expert who handed out the test object, and spread his hand to the other metal expert, his expression both unbeaten and innocent.

"I think so. Another metal expert pursed his lips and rushed to Yang Taidao: "Don't be stupid, the metal shell in front of you is made of seven special metal alloy materials." I can tell you that among these seven special alloys, there is no metal bismuth and no metal lead. ”

"I can also tell you that this alloy is not mixed together in proportion, but layered on top of each other. To make this alloy, a powerful magnetic field generator was built and then the alloy was cast in a directional magnetic field. ”

"Single... Single crystal?" Yota Watanabe raised his head instantly and lost his voice.

"I guessed it right, the single crystal of seven different metal elements is equivalent to the ability of 110 atomic numbers to resist radiation. The delicate master smiled and waved his hand, "How about going back and studying with the talented people in your academy, and see if we can deduce our special single crystal technology by using the technology of building fighter single crystal blades?"

"Oh yes, I went to Baidu yesterday, and you don't seem to be able to build qualified turbofan engine single crystal blades. ”

"No... No way, I don't believe it. Watanabe muttered to himself.

What is the concept of a single crystal?

A single crystal is a casting material with only one grain, and until now, a single crystal metal in nature has been extremely contained. But every single crystal metal that has been discovered has broken through the limits of human imagination. They are stunningly beautiful, with the perfect diamond proportions or cubes.

After unremitting efforts, human beings can finally make a single crystal metal.

However, it is only a single metal, or a single crystal blade based on nickel-iron alloy on the most cutting-edge aero engines.

What is the concept of seven special alloys, and what is the concept of stacking them layer by layer?

Yoko Watanabe didn't know......

The confidence and pride of ten minutes ago were gone, only fear, only incomparable shock and shock.