Into Unscientific

 Chapter 651 The atomic bomb entering the production stage! (superior)

 Just as Zhu Guangya expected.

 The appearance of the nationally produced gas exchange membrane plunged the entire conference room into an ecstatic atmosphere.

 Let alone ordinary experts, even big guys like Lao Guo and Qian Wushi couldn't help but shake their fists a few times.

after all

Gas exchange membranes involve the refining of enriched uranium.

 In a sense.

 The importance of enriching uranium is on the same level as the theoretical design of atomic bombs, and is similar to the nonlinear neutron transport equation.

 In the later life when Xu Yun traveled through time.

Even if we do not take into account the relevant binding treaties on nuclear testing and the quantity of uranium mines, many countries are still unable to extract enriched uranium with an abundance of more than 90%.

Of course.

The above sentence refers to the refining that relies entirely on one's own industrial level, and does not include the situation of calling daddy to import equipment.

all in all.

The news of nationwide production of gas exchange membranes was a shot in the arm for today’s group meeting, and it got off to a pretty good start.

 After a while.

An old expert with gray hair and a band of tape wrapped around the legs of his glasses raised his hand:

“Comrade Chengzong, you said that about 10 kilograms of enriched uranium can be extracted by the end of the year. Is this expected progress or actual progress?”

Yang Chengzong was slightly startled, but he quickly understood what the old expert wanted to express:

This is asking about the mass production of gas exchange membranes.

  After all, in addition to centrifuges, the number of gas exchange membranes is also a key factor in refining uranium enrichment.

 According to what Yang Chengzong said.

This kind of gas exchange membrane requires a relatively high cost to produce, so its production capacity is an issue that must be paid attention to.

 Fortunately, Yang Chengzong was not unfamiliar with the relevant data of gas diffusion membranes, so he quickly adjusted the situation:

“Comrade, your question is very valuable and critical.”

“But you can rest assured that with the coordination of the organization, we have already contacted our comrades from the Shanghai Naval Research Institute.”

“The Naval Research Institute will use ship-level equipment to assist us in the production of gas exchange membranes. The current production capacity is more than 2,000 sheets per week.”

“As for the equipment losses required to produce ten kilograms of enriched uranium by the end of the year, well, converted into a weekly value, it is about more than 1,400 sheets.”

"So the current gas exchange membrane production capacity alone can easily afford the refining of enriched uranium. At the same time, we have also made a long-term plan with the comrades of Mohai. In three months, the gas exchange membrane production capacity can be expanded to more than 3,000 sheets. .”

 Hearing the words "Modu Naval Research Institute".

Before the veteran expert who spoke out could say anything, a hint of obvious surprise appeared on Xu Yun's face.

Huh.

 It’s actually them?

 This is an old acquaintance

Students with good memory should remember it.

In the real world that Xu Yun traveled through, Huadun Biotech once encountered an equipment crisis:

 Nutrien has refused to provide the production line of FOERDA-T632 sequence to Huadun Biotech and has included it in the embargo list of the Wassenaar Agreement.

That production line is the core production equipment of "One Mantis". Without it, the entire product cannot be produced at all.

So Xu Yun went to Yongcheng in person and found Lin Zhenhua, the director of the Hanhua Group, and took Lao Su to visit his grave.

 Finally, Lin Zhenhua contacted a naval unit and used the navy's production equipment to create a set of modules.

 And that naval unit happens to be.

 The Naval Research Institute in Shanghai.

 The result was unexpected.

 In the current copy, Xu Yun unexpectedly heard their names again.

But this is normal.

The precision of gas exchange membranes is basically at the micron level. Nowadays, it is impossible for any ordinary state-owned enterprise in China to be able to do it. The target can only be the military industry.

 Because of the current situation.

 At present, inland military industrial enterprises are either responsible for the production of various weapons, or are in the process of relocation in the third-line depth strategy, and it is basically impossible to free up too many manpower and equipment.

 Hence it is natural.

This production task fell into the hands of the Navy.

Mordu Naval Research Institute is now the top naval research unit in the country, responsible for the research of various ships and even submarines.

 So it is inevitable that gas exchange membranes will be produced from them.

“The output is more than 2,000 sheets per week?”

The old expert repeated the numbers reported by Yang Chengzong, quickly calculated in his mind, and finally nodded with satisfaction:

 “This is indeed enough.”

This old expert’s name is Yang Wei, and he was originally an engineer in charge of uranium enrichment-related projects at the Institute of Atomic Energy.

 Just two years ago, the bearing center of the base experimental group lacked experts, so Yang Wei was transferred to the 221 base.

However, the change in position does not affect Yang Wei’s professionalism.

 After a few simple mental calculations.

He then roughly judged that the figure given by Yang Chengzong could indeed afford the expected uranium enrichment and purification, and could even make a surplus.

 As Yang Wei spoke these words.

 The matter of gas exchange membranes has come to an end for the time being.

Yang Chengzong and Qian Gaoyun quickly sat back in their seats, and the right to speak was once again handed over to Zhu Guangya.

 “Ahem.”

Zhu Guangya quickly cleared his throat and said to everyone in the audience:

“Comrades, thank you Comrade Yang Chengzong for your introduction.”

“With the breakthrough of gas exchange membrane technology, we are now one step closer to the successful production of atomic bombs.”

“However, there is an old saying in China, which is that a person who travels a hundred miles will be half-ninety.”

“It means that walking a hundred miles to ninety miles can only be considered as half of the journey. It means that the closer you are to success, the more difficult it is and the more seriously you need to take it.”

Do not know why.

 While explaining the meaning of this sentence, Zhu Guangya glanced at Li Jue.

Li Jue:

  “.?”

 Zhu Guangya then paused and continued:

“And when this sentence is applied to our atomic bomb project, it is related to the production of parts on the application side.”

“The theoretical group led by Comrade Lu Guangda and others have completed the first ninety miles, and the remaining ten miles need to be completed by our comrades in the experimental group.”

“That’s why our meeting today is called a baton handover meeting. Firstly, it is a formal handover, and secondly, it is to allocate specific research and development tasks.”

 Say it.

Zhu Guangya winked at Lu Guangda who was in the audience.

Lu Guangda stood up when he saw this, and came to Zhu Guangya with a blueprint rolled into a cylinder.

Zhu Guangya then stepped aside and assisted Lu Guangda to spread out the drawing, and then fixed it on a prepared iron plate with four magnets.

 After fixation is completed.

 “Comrades.”

Zhu Guangya picked up a bamboo pole about 30 centimeters, pointed at the drawing and said:

“Comrades, as you can see, this is the specific structural diagram of the atomic bomb.”

“Its structure from the inside to the outside is the ignition neutron source, which is specifically divided into the outer shell and the inner tank, followed by the nuclear charge uranium-235, and then”

 Zhu Guangya had seen the structural diagrams of the atomic bomb many times before the meeting, so his introduction was extremely smooth.

With Zhu Guangya’s introduction, many experts at the scene quickly understood several core links:

 Beryllium/Polonium neutron source,

 Honeycomb cardboard spacers - also known as air barriers, provide space for the critical collapse of compressed uranium fuel after detonation.

  U235 fuel layer ball fragments,

Polonium protective layer,

  Explosive detonation drive mechanism, also known as plane wave generator.     Finally, there is the free neutron generating layer and the neutron reflecting layer.

 “First let’s discuss the ignition neutron source.”

Zhu Guangya once again pointed the bamboo pole at the center of the atomic bomb:

“The neutron source plus the injection device is our default ignition neutron source, which is the so-called nuclear trigger.”

“Comrades from the Theory Department have already given a detailed plan for the specific principles of this part, which is to wrap the radium or polonium powder and beryllium powder separately in gold foil and then put them inside the atomic bomb.

“At first, the alpha particles released by radium or polonium will be blocked by the gold foil. During the explosion, the gold foil will be crushed. The radium/polonium powder will be in direct contact with the beryllium powder. When beryllium absorbs the alpha particles, it will release neutrons.”

“As for the related characteristics of neutrons, they are still being studied at the tandem accelerator. The initial date is the end of November this year. More detailed results will be released probably from January to February next year.”

 It is well known.

  U235+neutron = barium 138+krypton 95+3 neutrons

 So strictly speaking.

 When enough masses of uranium-235 are put together, the neutrons produced by decay are enough to trigger a chain reaction.

For example, a simple gun-type detonation uses two pieces of uranium below the critical mass to be dispersed and stored inside the atomic bomb.

 When it is necessary to detonate.

 Push one piece of uranium to another piece of uranium with explosives to exceed the critical mass. The neutrons released by the decay of the two pieces of uranium are enough to cause a chain reaction and trigger an atomic bomb explosion.

But there are some uncertainties in this method of detonation, so the first neutron in most atomic bombs comes from a neutron source.

Just like later generations of graphics cards can be divided into flagship and beggar's editions.

 Neutron source can also be divided into flagship version and beggar version according to changes in actual conditions.

 The representative of the flagship version is the spallation neutron source of later generations, which is owned by only four countries in the world.

 Among them, the rabbits’ one is called CSNS, with an investment of more than 2 billion, and it is located in Dongguan, a legendary city in Guangdong Province.

CSNS is also included in the ranks of the world's four major spallation neutron sources together with the British spallation neutron source ISIS, the sea-side spallation neutron source SNS and the neon spallation neutron source J-PARC.

Of course.

Looking at the promotional template above, it should not be difficult to guess that our CSNS can only be ranked fourth among the four major ones.

This is the unspoken rule of Xuanfa

 And the beggar’s version?

 That’s even simpler.

 Just like if you add three numbers and two letters at random, there is a probability of finding some kind of mysterious website.

   α radioactive nuclide + beryllium is one of the typical formulas of the beggar’s version of neutron source.

 For example, the combination of polonium and beryllium, radium and beryllium, etc.

These substances can be put together to produce neutrons. Some nuclear reactors in later generations have used this method, which is very cost-effective.

However, plans are plans, and the specific structure of the neutron source is definitely not as simple as using gold foil or only gold foil as Zhu Guangya said.

ˆ “.”

Zhu Guangya then left some time for the on-site experts to think, and then turned his attention to a thin middle-aged man nearby:

“Comrade Wang Fangding, our team is equipped with the only helium mass spectrometer leak detector in the base. We have also been responsible for studying the 9501 project before and have rich experience in this area.”

“So now the organization wants to give this task to you. I wonder if you have the confidence to complete it?”

　　唰—

Hearing Zhu Guangya’s words.

The middle-aged man named Wang Fangding immediately stood up from his seat and straightened his back in an extremely serious manner:

“No problem! Director Zhu, I promise to complete the task!”

Xu Yun raised his head and glanced at this middle-aged man with a bit of a monkey spirit, and a hint of emotion suddenly appeared in his heart.

Wang Fangding’s father is Wang Daozhou, a famous expert in gunpowder and internal ballistics in China. Wang Fangding began to work with gunpowder when he was five years old, and later became a well-known nuclear chemist in China.

Even in the original history, he was the developer of China’s first atomic bomb detonating neutron source.

However, he has always worked at the Atomic Energy Laboratory in the capital in his original history, and will not be transferred to Base 221 until three years later.

 But with the launch of the [Tai Shang] project, Wang Fangding arrived at the base not long ago with a new group of members.

However, what Xu Yun lamented was not Wang Fangding’s resume;

　　When Mr. Wang was critically ill, he met Wang Fangding, who had the same surname as Mr. Wang, once in the Gaogan Building of Yanjing Hospital.

At that time, Wang Fangding, the old man, was still in good health.

 A 95-year-old person looks like he is in his early 80s. He does not even need help from others when walking normally.

Now that he saw young Wang Fangding in the dungeon, Xu Yun couldn't help but feel the emotion he felt when he saw Wang Yaoping and Wang Lao before.

Zhu Guangya seemed to be very satisfied with Wang Fangding's reaction. He turned to look at Qian Bingqiong aside:

“Comrade Bingqiong, look”

Qian Bingqiong nodded upon seeing this, walked to Wang Fangding with a small box, and took out a few vials from it with great care:

“Comrade Fang Ding, this is the barium radium carbonate I brought back from France. I have been reluctant to use it for so many years. Now it is used where it is most needed.”

“Barium radium carbonate?”

Wang Fangding was slightly startled when he heard the words, and his breathing immediately became rapid.

I saw him holding the bottles in Qian Bingqiong's hand with both hands, looking at it carefully for a few times and then looking at Qian Bingqiong:

“Director Qian, these barium radium carbonate salts are.”

 Qian Bingqiong turned his head and looked at Yang Chengzong, with a hint of recollection in his eyes:

“This is a gift my teacher gave me back then. It’s the same as the one Chengzong brought back, both 10 grams.”

　　When talking about the history of China’s nuclear industry, many people will think of Qian Bingqiong first.

But in fact.

Before Qian Bingqiong, there were two other people who had an extremely important but not direct impact on China's nuclear industry.

These two people are Academician Yan Jici and Joliot Curie, the eldest daughter of Madame Curie.

 Yan Jici went to Gaul to study in 1923 and entered the laboratory of Professor Fabry and the Radium Institute chaired by Marie Curie.

 In four years, Yan Jici and Madame Curie formed an extremely deep friendship.

 After the death of Madame Curie.

 Yan Jici also maintained long-term contact with Madame Curie’s daughter and Joliot Curie.

 Later, relying on this relationship, Yan Jici was able to recommend Qian Bingqiong and Yang Chengzong to Joliot Curie's research institute.

 Qian Bingqiong and Yang Chengzong received an extremely sufficient knowledge education under Joliot Curie, and this knowledge later basically became the theoretical cornerstone of China's nuclear industry.

 At the same time before leaving Gaul.

Joliot Curie also presented 10 grams of barium radium carbonate to Qian Bingqiong and Yang Chengzong respectively.

 The only difference is.

 Qian Bingqiong’s share of barium radium carbonate was an unsolicited gift from Joliot Curie, which can be regarded as a pure gift between teacher and student.

Yang Chengzong’s share was given to him for free by Joliot Curie after he expressed his willingness to buy it in response to Qian Bingqiong’s request in the letter.

After these two barium radium carbonates came to China, they played an extremely important role in the research of Chinese nuclear physics.

Yang Chengzong’s barium radium carbonate salt became the “heart” of the equipment during the repair process of the radon extraction device that Yang Chengzong took out from Union Hospital eight years ago at the cost of blindness.

Since then, rabbits have been able to measure relevant fixed value data such as the appropriate energy band of radium, and can extract a small amount of alpha radionuclides.

 Qian Bingqiong’s barium radium carbonate became the material for the neutron source of the rabbits’ first atomic bomb.

However, this time is not a year ago as many marketing accounts say, but September two years later - the calcium oxide crucible will not be developed until next year. I don’t know why even The Paper reported that it was last year. .

Looking back to reality.

After looking at the barium radium carbonate, Wang Fang carefully put them back into the iron box.

But this time, he did not express any determination.

  Actions are more meaningful and valuable than words.

 And the other side.

 Zhu Guangya also withdrew his gaze and turned to look at the scene again:

“Since Comrade Wang Fangding is responsible for the research and development of the neutron source, will any comrades come forward to produce the next honeycomb cardboard spacers?”

Zhu Guangya just finished speaking.

 A bald man immediately stood up in the crowd:

"I come!"

 (End of this chapter)