In addition to gun-type devices, there are implosion-type devices.
What is an implosion
Generally, explosions explode from the inside out, but implosion is different. They explode in the opposite direction from the outside in to compress.
The implosion-type device uses the energy of explosives to do work to quickly compress multiple pieces of nuclear material in a subcritical state into a small volume, making it reach a supercritical state.
This is equivalent to pushing thousands of students in a circle toward the middle at the same time on the playground, so that they finally gather together in a place with only a few square meters in the center. At this time, their density will be extremely shocking. If we switch to nuclear raw materials, the density of atoms has reached a terrifying level, greatly exceeding the critical mass.
Therefore, the utilization rate of nuclear raw materials is higher and the power is greater, but the technical difficulty will also increase.
The most critical aspect is how to compress numerous nuclear raw materials simultaneously. For example, how to make a thousand people on the playground arrive at the center at the same time and squeeze together.
The nuclear material is propelled by the detonation wave of the explosion, while the inward propagation of the detonation wave of ordinary explosives is inherently asynchronous, because it is a circle that spreads from a point to all sides.
In this way, there will be a difference in the arc of the pushed nuclear material.
This difference is insignificant in other explosions, but in nuclear explosions timed by tremors, it is fatal.
In order to ensure the implosion effect, the explosion must be improved so that the detonation wave does not propagate in a circle but in a plane. Many planes are connected together and squeezed together to form an approximate circle, thereby eliminating errors.
In addition, the layout of detonators, research on detonators, etc. all need to be improved.
Compared with the gun-type device, the difficulty of the implosion-type device has obviously increased, but considering that the utilization rate of nuclear materials has been greatly improved, this is completely acceptable.
On Earth, the second atomic bomb used by a major country in actual combat was an implosion device. Compared with the 64 kilograms of the first atomic bomb, the nuclear material loading is only a pitiful 6.1 kilograms, but the utilization rate is as high as 17%. Therefore, the power released does not decrease but rises. The TNT equivalent is equivalent to 22,000 tons, exceeding the first atomic bomb. 15,000 tons equivalent.
…
"Wow, wow, wow..."
Richard sat in the purple hall of the library, flipping through the books page after page, carefully looking at the knowledge recorded on them.
After looking at it for a long time, he slowly stood up, glanced at the long-necked turtle made of stone, showed a smile, and returned the book to the other person, "Okay, Suma, put it back."
"My creator, have you got what you want?" The long-necked turtle put the book back in its mouth and asked in a soft tone.
"Absolutely." Richard nodded lightly.
"Then you're leaving, right?" the long-necked turtle asked.
"Yeah." Richard nodded again.
"Then I will wait for your next visit." The long-necked turtle lowered his head and said goodbye.
"Goodbye, Suma." Richard waved.
"Goodbye, my creator." The long-necked turtle also said.
Under the gaze of the long-necked turtle, Richard stepped out.
…
Open your eyes, slowly open your eyes.
In the main laboratory, on the wooden bed in the rest room, Richard opened his eyes and sat up slowly.
He got out of bed, walked out of the door, sat in front of the circular experimental table outside, and sorted out the memory knowledge obtained from the depths of his brain. He had already made a decision.
In fact, there is no need to think about it. The situation is already obvious. The wisest choice is to build an implosion atomic bomb.
The reason is simple: he is poor.
Yes, he is poor.
In terms of money, although he is extremely rich, in terms of raw materials for nuclear weapons, he is actually a poor man. Although he currently has enough nuclear materials for nuclear weapons research and manufacturing plans, he cannot squander it wantonly.
His current nuclear raw material mining site is only the Shambhala uranium mine, and more than half of it has been mined. After that, mining becomes more and more difficult. Before obtaining new nuclear raw material mines, he must cherish these reserves on hand.
Good iron should be used on the blade. In order to avoid waste as much as possible, the implosion atomic bomb is the best choice.
To make an implosion atomic bomb, it is necessary to solve a series of problems such as detonation waves. In addition to nuclear raw materials, he also has to find other auxiliary manufacturing materials, such as rhenium-tungsten alloy, beryllium, etc.
"The rhenium-tungsten alloy requires about 40 kilograms. In addition, 100 kilograms of beryllium are needed. When processing beryllium, I don't know whether it is suitable to use a space iron ring. If it is not suitable, I will use boron nitride or diamond instead, but it should be more difficult. Get. Otherwise…”
As Richard spoke, he took a piece of papyrus from the circular experimental table and started making a list. In a short time, he made a long list.
In order to make nuclear weapons, dozens of various materials must be collected. If you really do this from scratch, you won't be able to finish it in a month or two.
Fortunately, he had been somewhat prepared for this in the previous three months. More than half of the materials have been successfully solved, and a certain amount of points have been spent on the unsolved ones, so that Truth will pay attention. He believed that with the power network of the Truth Society, it may not be possible to collect them all so far, but most of them have been collected.
Next, he only needs to walk out and go to the affairs office in Pompeii Town outside to ask.
If it goes well, a real implosion atomic bomb may be built in the next few weeks.
Thinking about it, Richard walked out of the main laboratory.
Then, he saw Pandora and the Lich Old Man busy in the open space outside the main laboratory, tinkering with a large group of half-meter-tall short skeletons.
In the past three months, he had gained some understanding of what Pandora was busy with. According to Pandora, he was creating a magic puppet guided by mathematical knowledge. Once successful, he would definitely be shocked.
He wasn't sure whether his jaw would drop in shock, but he was a little curious about the effect of Pandora's busy work for so long.
If nothing else, just look at the current group of short skeletons. Although their agility has improved, their defense has dropped. Compared with the previous stupid big skeletons, the gap is actually not big. As for the combination function that Pandora mentioned, he had seen it a few times. It was indeed a bit special, but to be honest, its practical significance was not very great.
However, he remembered that Pandora had said before that it would be successful in three months, and maybe there would be fundamental changes now.
Walking towards Pandora, Richard was ready to ask Pandora specifically.
Halfway through, he stopped suddenly and saw a busy Pandora standing up and giving orders to a group of short skeletons.
"Get all the skeletons ready for me!" Pandora said seriously with a stern face.
"Wow!"
With a sound, thirty-six skeletons quickly lined up in a square formation, looking like they were waiting for orders.
Richard's eyes flashed, he stood there with a somewhat surprised look, and then looked at it seriously. Prepare to see what these skeletons will do next, and then ask Pandora questions.