Da Da, Qian Wushi, Qian Bingqiong, Zhao Zhongyao, Zhou Guangzhao, Wang Ganchang, Lao Guo, Peng Mengxiong...
All the famous physicists of later generations were gathered at the front of the room like curious babies, staring at a certain drawing in front of them with bright eyes, and exclaiming from time to time:
"Wonderful, wonderful..."
"Excuse me, please give me a break..."
"Fuck, is there anyone like you who gets into someone's crotch?"
"Look, this thing is so exquisite..."
"Look at area A2, 86.324. That should be the parameter designed by our team, right?"
"Xiao Zhou, please wipe your saliva quickly, it's almost dripping on me!"
"Si Liu..."
And at the very front where these people gathered.
That is, on a huge drawing with a size of 1.5X1.5, a large round ball like the base of an ear is clearly drawn.
The interior of this sphere is divided into many modules. In addition to specific parameters, some modules are also marked with corresponding chemical reaction formulas or mathematical formulas.
That’s right!
The ball drawn on this drawing is the atomic bomb "Miss Qiu" that the rabbits have longed for...
design diagram!
"OK OK."
after awhile.
Seeing that the crowd had the tendency to pounce on the drawings at any time, Lu Guangda quickly waved his hand and stepped in to control the scene:
"Please stop here first! Just a reminder, this blueprint is a real one-if anyone damages it, prepare to be punished!"
"If you really want to see it, you can take this time. When the copies of the drawings come out in two days, each of you will have a copy. Then you can lick it if you want, okay?"
"Now, one by one, get back to your seats first, hurry up!"
Lu Guangda has been called 'Doctor Doll' since a long time ago. He is cheerful and polite to everyone and rarely gets angry.
Now he suddenly has a serious face, which is somewhat effective for people who are used to his kind face.
In addition, these bosses indeed only lost their composure for a moment, and their basic sanity was not lost, so they quickly returned to their positions one after another.
"...."
After everyone returns to their seats.
Lu Guangda just put down his hands on his waist, and his tone gradually returned to calm:
"Comrades, I can understand your mood, but at this time, we must remain calm."
"When I was studying abroad at Purdue University, I once saw a football match. The two teams were international students from the Politecnico di Milano and the University of Liverpool."
"At that time, the University of Milan took a 3-0 lead in the first half, and someone even opened the champagne early during the halftime break. However, in the second half, the University of Liverpool chased three goals in a row, and ultimately lost the game."
"There are often many uncertain factors before everything in the world comes to fruition, not to mention that our current progress cannot be considered very satisfactory - there are still several mountains waiting for us to climb."
"So we must stay calm at this time. Just use what Xiao Xu said to me before...oh, save your character."
"The more character we accumulate now, the easier the subsequent work may be. I think this makes sense."
A burst of chuckles soon erupted from the audience.
really.
Although the atomic bomb drawings...or the finalization of the design drawings are not so small that they can only be described as "the first step in a long march of thousands of miles", in terms of the overall progress, they can only be regarded as only a small part of the progress.
After the design drawing is completed.
The production of parts and components is also not an opponent that can be underestimated.
For example, the refining of enriched uranium, the proportion of explosives that Xu Yun visited before, the production of neutron sources, etc...
Just like the later Kirin 9000s, the special thing about this chip is the breakthrough from 0 to 1. In fact, there are still many areas that need to be improved and caught up in terms of performance.
After all, excitement is temporary, and business matters must ultimately be discussed from a business perspective.
The same goes for the atomic bomb.
Nowadays, Miss Qiu's health bar has been stripped off, but it is still not easy to get rid of the 9999999 health bar.
Then Lu Guangda looked around the scene and continued:
"Okay, now that everyone has calmed down, let me introduce the specific height and weight of our 'Ms. Qiu'."
Say it.
Lu Guangda pointed at the center of the drawing with his finger, and then said:
"Let's start with the innermost layer of this atomic bomb. This is a Po_Be neutron source with a diameter of 2cm. The neutron source intensity is about 75Ci..."
"Then..."
Lu Guangda's introduction method is from the inside to the outside, which is also the most intuitive way of introduction.
Based on the design of Lu Guangda et al.
The ignition neutron source of "Miss Qiu" consists of two parts, namely the outer shell and the inner tank.
The inner tank is 4mm wide in diameter and made of beryllium.
The shell is designed in the shape of a wedge-shaped transverse groove, which is actually to use a long space to isolate the a particles released by the polonium-210 plated on the inside of the shell with air to prevent premature ignition.
After the alloy foil is attached to the inside of the shell, 1.5 mg of polonium-210 is precipitated using the precipitation method - that is, the reducing agent stannous chloride solution is used to precipitate polonium in the polonium chloride solution. Telluric acid can also be added to the polonium chloride solution in advance.
As a carrier, after precipitation with stannous chloride, polonium will co-precipitate with elemental tellurium, which is convenient for operation.
The outer layer of the neutron source is a nuclear charge of uranium 235, with a total weight of 5.1kg and a diameter of 18cm.
Students who have studied atomic bombs should all know this.
When the crystal form of uranium is a phase, although the critical mass is small, it is easily brittle and is not conducive to mechanical processing.
In this way, accidents may easily occur inside the nuclear bomb, or it may fail to detonate due to fragmentation.
Therefore, during the smelting period, it is necessary to add 3 to 3.5 mole fraction of gallium element (1 to 2% by weight) to turn the uranium into a delta phase that is not easily brittle.
Although the critical mass of delta phase uranium is not very low, it is already very close to the critical mass when thick uranium-238 is wrapped as a neutron reflection layer.
At the same time, when the detonation wave of the outer explosive squeezes the nuclear charge, the density of uranium in the delta direction increases suddenly, and it is immediately converted into a-phase uranium, accelerating the chain reaction.
Because gallium is corrosive, the nuclear charge needs to be vapor-plated with nickel to provide protection.
The part surrounding the nuclear charge is U-238 elemental substance, which is larger than the calculated neutron reflection layer and has a thickness of 4.554 centimeters.
Then, in order to prevent free neutrons from harming the nuclear charge, the reflective layer outer shell is wrapped with a 3mm thick boron polyethylene plastic shell. The neutron absorption cross section of boron is extremely large, which can effectively protect the nuclear charge from the influence of external neutrons.
The outer layer is a "push body" made of aluminum, with a total diameter of 47cm.
Aluminum is easy to deform, and can effectively transmit the shock wave of explosives to the inner layer, with better effect. (Note: I added a small bug to the specific structure, can you tell where it is?)
"...The yellow part of the penultimate outer layer is high explosive, with a total diameter of 124.9cm. It is initially determined to be the CL20 mentioned by Comrade Xu Yun."
Half an hour later.
There were some beads of sweat on Lu Guangda's head, but the look on his face was still exciting:
"It is also worth mentioning that for the explosives part, we have made a total of two corresponding plans based on the actual situation."
"The first plan is the situation mentioned above, which is to use CL20 as the detonator."
"But if the CL20 explosive cannot be successfully developed, then RDX and TNT debugging explosives will still need to be used."
"We temporarily call that explosive N1, and the preset common diameter is 144.2cm. This is also the only AB plan in the entire design process."
"These explosives are football-shaped geometric objects. There are 32 pieces of explosives in total. However, just from a single explosive, the implosion wave is arc-shaped. Thirty-two arc-shaped shock waves are completely unable to compress the nuclear device in a spherical shape.
medicine."
"The solution to this problem is the last layer of our design, which is the explosive lens structure calculated by Comrade Yu Min, which allows the shock wave to be "refracted" into a perfect circle."
Hearing Lu Guangda's words.
Many people have turned their attention to Xu Yun...the one beside him is Da.
Yu Da scratched his hair in embarrassment, smiled and nodded around, and his shyness in later interviews could be vaguely seen.
The slow explosive used in the explosive lens he designed is Baratol, which is made of 70% BaNO3 and 30% TNT. The detonation velocity ratio with CL20 is 8:3.
If CL20 cannot be produced and is replaced by N1 explosive, just correct the detonator angle to 106° to perfectly fit this explosive.
He even made two other plans that were not in the rabbits' plan, but Xu Yun had already seen it... and was no longer surprised...
In fact, once you get used to it, it seems... quite enjoyable?
And the other side.
Lu Guangda’s introduction also came to the end:
"In short, these are the specific structural parameters of the atomic bomb. In addition, the total weight of the atomic bomb is 1,420 kilograms, and the equivalent is about 20,000 tons."
Hearing this, Xu Yun in the audience also nodded.
in the original history.
The total weight of the Rabbits' first atomic bomb was 1,550 kilograms, but the explosives accounted for more than 90% of it.
Now that Xu Yun has come up with the more powerful CL20, the required weight of explosives has been reduced, and the total weight of the atomic bomb has naturally been reduced.
As for the detonation yield...
Mentioned earlier.
There are three main nuclear reaction equations:
U n→Nd Zr 3n 8e (ν-, antineutrino), U n→Sr Xe 2n, U n→Ba Kr 3n.
It is not difficult to see from these equations.
At the end of nuclear fission, uranium nuclei may eventually form nuclei such as neodymium and zirconium, strontium and xenon, and barium and krypton nuclei.
Since mass is reduced before and after the reaction, the reduced mass becomes the energy released.
On average, the energy produced by the fission of uranium is 3.2*10^-11 Joules of energy. According to chemical formula calculation, one kilogram of uranium is approximately 2.56x10^24 atoms.
Multiplying the two together gives us the energy produced by the fission of one kilogram of uranium, which is 8.2x10^13 joules.
That is, the nuclear fission of 1 kilogram of uranium is equivalent to the energy released when 18,000 tons of TNT explosive explodes.
The total weight of U235 preset by Lu Guangda is 5.1kg. Based on the fission efficiency of 20%, the equivalent figure of 20,000 tons is quite reasonable.
In fact.
Originally, the yield of the first atomic bomb exploded by the Rabbits in history was between 20,000 and 22,000 tons of TNT. Xu Yun's arrival only accelerated the progress at the technical level. The yield was directly linked to the nuclear charge - Xu Yunke
If you are not the administrator of Earth OL, you do not have the ability to change the energy released by nuclear fission of a unit...
What he can do is advance the birth date of nuclear weapons and change some other things that can or cannot be written in the text.
all in all.
At this point, the theoretical link of the atomic bomb has almost been completed as Lu Guangda said.
What remains is the issue of parts production. These parts must be discussed, but obviously not today.
after all.....
From the beginning of calculating the data to now, everyone on site has been overloaded for 22 hours.
In reality, many people will feel exhausted even if they just do nothing for 22 hours without sleeping. Not to mention Lu Guangda and others, they rested on their heads for less than an hour during these 22 hours.
So a few minutes later.
Lu Guangda picked up the water glass, took a sip of water to moisten his throat, and quickly said:
This chapter is not finished yet, please click on the next page to continue reading the exciting content! "Okay, comrades, the above is the entire design plan of our atomic bomb."
"Now please allow me, as the person in charge of the [Supernatant] project, to announce that...the theoretical research on the atomic bomb has been completed! Thank you for your hard work!!!!"
Everyone in the audience was silent for a moment after hearing this, and then thunderous applause broke out.
Xu Yun was also among the members who applauded.
Although theoretical research cannot be regarded as the final decisive victory, the members of the base's theoretical team have been waiting for this day for too long...
Xu Yun believes that it will not be long before the successful assembly of atomic bomb parts will come, thus bringing the entire project into the final countdown.
A full minute passed.
After the applause stopped, Lu Guangda pressed his palms towards everyone:
"Okay, comrades."
"It's already getting dark now. Since everything that needs to be explained has been explained, I think it's better for everyone to go back and let's talk about the rest another day."
Hear this.
The audience soon heard yawns one after another, and Hua Luogeng next to Xu Yun even stretched.
Even a young man like Cai Shaohui has a strong look of exhaustion on his face.
Then everyone quickly left their seats and walked out of the basement in an orderly manner.
Lu Guangda and his assistant began to pack up the design drawings and prepare to start backing them up overnight.
Xu Yun also returned to the hospital with the help of guard Mou Fangdong, and fell asleep not long after boarding the ship.
One night...no, I should say one day without talking.
...
I don't know if it was because of injuries.
Xu Yun slept for nearly 24 hours this time before he woke up somewhat heavily.
"Well....."
Xu Yun's long sleep made Xu Yun's head a little dazed. When he woke up, he subconsciously prepared to press the call bell next to the bed and call Qiao Caihong to change his clothes.
As a result, before his hand touched the call bell, Xu Yun caught a glimpse of something from the corner of his eye:
I saw a black shadow standing on the left side of my hospital bed!
Xu Yun:
"?!"
Xu Yun's first reaction was that he had not updated enough and some reader came over to urge for updates offline, but he soon realized it - this was within the dungeon!
Moreover, base 221 comes with certain buffs, and it is obviously impossible for monsters and monsters to appear.
In addition, the sky was somewhat bright at this time, so Xu Yun, who calmed down, used the light to carefully look at the black shadow.
After a while.
Suddenly, Xu Yun's voice sounded in the room:
"Hey, Yu Da? Why are you here?"
That’s right!
The dark shadow that almost scared Xu Yun's heart into a twinge was exactly what Xu Yun was familiar with!
At this time, Da Da was leaning on the bed with his eyes closed and concentrating. Hearing this, he immediately stood up a little straighter:
"Comrade Xu Yun, you're awake."
"Well, I just woke up..."
Xu Yun leaned on the backrest of the nursing bed with some effort, looked at Yu Da with some confusion and asked:
"Da Da, you are so early in the morning..."
Yu Da raised his head and glanced at Xu Yun, took out a small notebook from his body and explained:
"Comrade Han Li, to tell you the truth, I have been thinking about a question since I calculated the data yesterday."
"This question has tortured me for a whole day and I still can't think of an answer, so I came here early in the morning to ask for your help."
"oh?"
Xu Yun suddenly became interested when he heard this:
"what is the problem?"
Yu Yu's ability can be said to be hanging on the wall, and it can make him think about problems that he couldn't figure out for two days...Xu Yun is still quite interested.
Da Ze opened the small book in his hand, organized some words, and said to Xu Yun:
"I have been responsible for the theoretical research and development of the hydrogen bomb recently. During the theoretical process, I suddenly discovered a problem."
"The hydrogen bomb across the sea mainly uses tritium, but the half-life of tritium is only 12.5 years, and the tritium reserve must be replaced every 6.5 years."
"In addition, according to the top-secret information we obtained from across the sea, the maximum cross-section of the tritium-tritium reaction calculated from the other side of the sea is 15 bar. But according to my calculation results, it is absolutely impossible for the cross-section of any light nuclear reaction to exceed 5 bar."
"So I've been thinking about a question these days..."
"What role does tritium play in a hydrogen bomb explosion? If my calculation is correct, does it mean..."
"In fact, can we ignore the tritium-tritium reaction and use other reactions instead?"
.....
Note:
In the last four hours of the extra update event, the 4,000 votes are probably not reached. If we can get 3,500 votes before 12 o'clock tonight, we will update 200,000 words this month.
