Why don t Japanese nuclear power plants inject boric acid

There are various opinions as to why boric acid is not injected into Japan's nuclear power plants. Some people believe that Japan** is motivated by strategic considerations, and the intention is to hope that the great powers will not dare to act rashly because they will not rely on nuclear forces to counter Japan. In addition, Japan has always adhered to the principles of transparency, fairness, and courage in its handling of nuclear power plant accidents, and will promptly disclose relevant information and will not hide or retain it.

Please note that these views and opinions are not authoritative official information, but only analysis and speculation based on publicly available materials and information. When knowing and understanding nuclear energy-related information, it is important to refer to authoritative, professional official sources and information.

Nuclear raw materials are important strategic materials, and after the injection of boric acid, these raw materials are declared obsolete. For the sake of its own ambitions, Japan does not hesitate to gamble on the health of the Japanese people in exchange for these supplies! Not only wasted precious time, but also deceived the population that the nuclear reactor was "safe"!

Now that things have evolved like this, more than half of them are caused by the ambitions of the Japanese **! Have pity on the people of Japan! It's time to repeat the shadow of Hiroshima's Nagaki nuclear bomb again!

Japan's ** Chinese thief is not dead! All Chinese should strive to make their country stronger, not just a slogan! Put it into practice!

Japan uses the raw materials for making nuclear bombs, and the precious nuclear ** raw materials injected with boric acid will be scrapped, and the little Japanese thief will not die.

Nuclear fuel is an important strategic material, after the injection of boric acid, these nuclear fuels are declared invalid, Japan ** because of its own ambition to abandon the health of the Japanese people, the result is now the vicious leakage incident is gradually escalating! In the end, it was uncontrollable to use remedial measures, which not only wasted valuable time, but also deceived the Japanese people that the nuclear power plant was "safe". It has also caused hidden dangers to the health and safety of the people in neighboring countries.

All of this is caused by the ambitions of the Japanese **! Vainly trying to suppress China with nuclear **! It's just that Yelang is arrogant and can't do anything about himself!

Laughing at China no one cares?! Japan's ** offense my Chinese thief heart is not dead! Every Chinese should strengthen their sense of self-crisis and exert their strength to build their country stronger!

It can't just be a slogan! Put it into action! Avoid Nanjing from happening again in China in the future!

Let Japan's expansion ambition forever be an unattainable dream!

With boric acid, its reaction fuel will be scrapped, and you should understand it without boric acid.

The reactor and raw materials treated with boric acid can no longer be used to extract some heavy metals in the nuclear **, in other words, the purpose of the Japanese to build this power station and this reactor cannot be achieved, so Fukushima is not cornered, and boric acid will not be used.

Boric acid can absorb neutrons and slow down the chain fission reaction. It's called chemical control, and it accounts for 70% of the reactor control.

Boric acid is a seed absorber that stops the chain reaction.

To put it simply, boric acid is a neutron trap, and nuclear reactions can only occur after a certain number of neutrons are possessed. The details are explained below:

1. How a nuclear reactor works:

After the fission reaction of U-235 produces fast neutrons, the fast neutrons move in the moderator, the energy gradually decays, and finally becomes thermal neutrons, this time is called moderation time, and this process is called the moderation process. Fast neutrons may not be absorbed immediately after they become hot neutrons, but they will move for a period of time and finally be absorbed, which is called diffusion time.

In the moderation process, a moderator can be used. The role of the moderator is to moderate the neutron, so that the neutron is easy to react with the target nucleus, the prerequisite for the moderator is to have a large scattering cross-section, a small absorption cross-section, so that the moderation effect is good, the best moderator is heavy water, as well as carbon dioxide, carbon, water, boron-10 isotopes and so on.

2. Boric acid absorbs neutrons.

Boric acid is a substance with a large neutron absorption cross-section, which is mainly used to adjust the reactivity in the reactor, and adding an appropriate amount of boric acid can reduce the reactivity.

There are two stable isotopes of natural boron, (10)b and (11)b, with abundances of 19 78% and 80 22%, respectively. 10)b has the unique characteristics of high neutron absorption, (10)b has a cross-section of 3837 bar (1b=10, pa), and the absorption cross section of natural abundance of boron to thermal neutrons is close to 750 bar, while (11)b is only 0 005 bar, so the absorption cross section of (10)b for thermal neutrons is more than 5 times that of natural abundance boron, more than 20 times that of graphite, and more than 500 times that of traditional protective material concrete.

That said, the boron-10 isotope is a highly effective thermal neutron absorber. Therefore, it is indispensable in the safety and control system of nuclear power plants. Special grade (SQ) boric acid is used in the nuclear industry and has a high proportion of boron-10.

Therefore, boric acid can be used to terminate nuclear reactions, absorb neutrons, and then fast-set cement to plug them, and then how many kilometers will be a no-man's land in this place, and no longer inhabited.

It is precisely because of this characteristic of the (10)b isotope that the related products of the (10)b isotope are widely used in military fields such as military protection, nuclear ** and nuclear industry.

Another effect of sprinkling boric acid is that it can be vitrified at high temperatures, which can immobilize radioactive elements and spread around. (like a glassfactory fires glass).

In addition, the boron-10 isotope can also be used in neutron counting tubes, used as protective screens in nuclear reactors, correcting rods, and also used for cancer.

The real reason for the self-inflicted --- of Japan's big **!!

Japan's March 11th grade **, it is a natural disaster, but from a comprehensive analysis of many aspects, it can be seen that this may be a completely man-made catastrophe --- man-made disaster! It could be caused by Japan's own undersea nuclear tests! Here's why:

From the China.com community.

1. Shinta Ishihara just said a while ago that he would use nuclear weapons to confront China, and on March 9, Japan had a first-class confrontation. This can be inferred that Ishihara's wild words were just for Japan's nuclear test, and the ** on the 9th was actually a nuclear test conducted by Japan. If nothing else, Japan will conduct several nuclear tests in the near future and soon declare it a nuclear power against China with the approval of the United States.

It's a pity that people are not as good as heaven, and they can't imagine that it will lead to the great ** of the century and eat the consequences.

2. The mysterious maelstrom that appeared on the sea surface after March 11** may have been caused by the collapse of Japan's tunnel leading to the submarine nuclear test site, resulting in the inflow of seawater.

Third, with Japan's existing technology, it can lead to the failure of Japan's three power grids for starting cooling equipment, especially the diesel generators cannot generate electricity, which is a bit too incredible. The plausible explanation is that Japan deliberately allowed the nuclear power station to leak out in order to cover up the nuclear radiation that occurred during the March 9 nuclear test.

Fourth, the US aircraft carrier is exposed to such strong nuclear radiation on the sea surface 100 kilometers away, while the Japanese mainland has only evacuated people 20 kilometers around the nuclear power plant, so where does the nuclear radiation on the US aircraft carrier come from? The plausible explanation is that the radiation was actually caused by Japan's nuclear explosion on March 9.

5. Japan announced yesterday that it would test the amount of nuclear radiation at its power stations on its own and prevent foreign countries from interfering. This is to be a thief!

In fact, as an island nation, the country has abundant tidal and wind power resources, and solar energy is also very advanced, but the country has ignored these and has been fully committed to nuclear power for many years.

If only it were for electricity, how many people would know? Today, when nuclear power technology has advanced by leaps and bounds, the nuclear power facilities of the Japanese country are all clinging to the first and second generation technology.

The Fukushima nuclear power plant uses uranium-plutonium mixed oxide, which is 2-3 times more expensive than uranium oxygen raw materials and is highly dangerous, and the reactor uses a fast breeder reactor with poor safety, and the boiling water reactor has only one circuit, which goes directly to the turbine. The Japanese can see what they want to do with any brains: isn't it just to stock up on the plutonium used to make nuclear bombs?

It is now reported that boric acid is already being used in the No. 1 pile that has been blown up. At first, it was reluctant to use it because once boric acid was used, all the nuclear fuel in it was scrapped. The Fukushima power plant uses MOX fuel, which is a very important strategic resource, you know.

At present, the latest generation of nuclear reactors in the world is claimed to be safe after an accident and emergency shutdown for 36 hours. But the Japanese just don't use it. To put it simply, they only build the most primitive and backward nuclear power plants, and never use new technologies, no matter how mature they are, no matter how free they are.

Because the original first- and second-generation technologies are most conducive to refining nuclear raw materials in large quantities.

First of all, it's not nuclear, it's the reactor furnace temperature that is too high and the hydrogen content is too high"**"!!!

It's normal, it's just that it's in the reactor, so there's a leak of radioactive material.

But the temperature is nowhere near the temperature needed for nuclear fission, so don't expect it to be like Chernobyl.

At present, people say that the harm is not large, and as for the United States, dozens of people have been exposed to radiation.

Just wash the soap.

If it's too low, even if it's an X-ray amount.

For China, it is now a westerly wind and the impact is even less.

It really affects you, and you will feel it.

What does it feel like?

You can ask me another question :)

First of all, we have to figure out how the *** of Japan's nuclear power plants came about. After that, the power at the nuclear power plant stopped, so the backup diesel generator began to work. However, the tsunami destroyed the diesel units.

As a result, the pumps stopped, the reactor was not cooled, and the core temperature began to rise. The zirconium alloy that encapsulates the nuclear fuel begins to oxidize under the influence of rising temperatures, and hydrogen gas is released. It occurs when the concentration of hydrogen reaches a certain limit.

But this ** is purely chemical, and the protective shell that encapsulates the reactor is not produced**. Of course, if the core temperature continues to rise, the pressure continues to rise and exceeds the capacity of the containment, then it is more serious. That was the second Chernobyl.

Affected by the monsoon, if the core melts and triggers **, the nuclear radioactive materials produced will affect most of Southeast Asia, and the northern part of our country should not be greatly affected.

Hope it helps.

All the reports were sent from Japan, and a friend of mine in Japan said that ** didn't reach level 9 at all. Second, it is uncertain whether it is ** or not, and the real situation of this nuclear crisis is really true and the people cannot know the whole picture. Japan previously said that it would build a nuclear bomb to fight ZG within one year, and a tsunami occurred within a few days, and there is news that the whirlpools in the sea after the tsunami are all broken in the sea passages, and it is uncertain whether it is a hidden nuclear ejection failure, which is not verified, but the possibility is not ruled out, and the superficial nuclear crisis is just a pretense, and there may be the truth after the incident.

If it were a simple nuclear power plant, Japan wouldn't be able to! I want to make more technological results**. China also stupidly donated 30,000,000 materials and hundreds of millions worth of gasoline and oil.

Everyone is well talked, but who is really looking for a Japanese theory???

In fact, at the time of Reactor 1**, its core had melted down.

Only the zirconium-water reaction that occurs after the core meltdown can release a large amount of hydrogen, that is, assuming that the metal inside the zirconium or fuel rods reacts with the cooling water, at least tens or even hundreds of tons of metal are needed to replace 1 ton of hydrogen.

With a core meltdown of this magnitude, it should be said that the operators have lost control of the reactor, and even doubtfully, was previously announced"Automatic shutdown is successful"It is very doubtful that there is a high probability that the control rod will not be fully inserted, or even a flick accident, that is, the control rod will be ejected from the high-temperature and high-pressure reactor core. The specific situation depends on the design parameters of the reactor.

The situation is similar for several other piles 1, 2 and 3. The most bizarre of reactor 4 is that the fuel rods of the spent fuel pool melted down, and may even be recritical, which can only indicate that either there is a major design problem or a major safety hazard in the operation.

Fukushima's containment is said to have been added later. It can't be compared with Daya Bay or the containment of Three Mile Island, but it can only be said to be slightly better than Chernobyl. If you do a search of Three Mile Island in the United States, Daya Bay in China, and take a look at it, you will find that they all have a barrel-shaped containment, which is completely different from the structure of the Fukushima reactor.

In addition to water injection, the key is to forcibly pour boric acid, after the core meltdown, the effect of the control rod may be weakened, and the neutron absorber may be incorporated to reduce the fission reaction, in order to fundamentally reduce the temperature, it is impossible to completely stop self-fission, but it can be limited to the greatest extent. At present, however, Japan's measures are very indecisive and ineffective.