Chapter 403: Daya Bay Good News!
Through a special logistics unit, Xu Chuan sent the samples to Daya Bay.
All that's left is to wait.
Slow neutron irradiation experiments are not particularly time-consuming, but they always take some time to prepare and process the relevant data.
And this period of time is particularly long for the researchers in the computational materials research laboratory, which is full of expectations.
Especially Zhao Guanggui, after resting for a night, he went to Xu Chuan's office the next day and began to inquire about the situation.
Although Xu Chuan can understand this expectation and eagerness to know the result, he has to say that with the frequency of this Professor Zhao coming to disturb him, it is almost interfering with his normal work.
After all, he is the person in charge of Qixia's controllable nuclear fusion project, and in addition to the first wall material, there are other problems waiting for him to solve, process or distribute.
Fortunately, the wait was not long.
With the highest priority marked, at the beginning of March of the solar calendar, the Daya Bay Neutron Radiation Laboratory Center conducted the first batch of slow neutron irradiation experiments on zirconia carbon composites.
After waiting for another three days, the relevant analysis data and samples irradiated by slow neutrons were transported back to the Qixia controlled nuclear fusion project through logistics.
"The test results from Daya Bay are out."
After the results of the slow neutron irradiation experiment were reported to Xu Chuan's office, Xu Chuan called Zhao Guanggui and told him the long-awaited news.
It didn't take more than five minutes for Zhao Guanggui to rush over.
"Academician Xu, how are the test results?!" As soon as he entered the door, Zhao Guanggui asked in an excited and urgent tone.
Xu Chuan smiled, pushed the test report on the desk forward, and said with a smile: "You can see it yourself." ”
Hearing this, Zhao Guanggui couldn't wait to reach out and take the test report from the desk and read it.
He is very clear about the materials sent to Daya Bay for testing.
Due to the urgency of time, as many as 12 sets of materials were sent.
These 12 groups of identical materials are being irradiated with different slow neutrons in different irradiation scenarios at the same time, so as to obtain data at the same time and save time.
Of course, along with these materials, there are other control materials that enter the test site, such as Austrian steel, tungsten molybdenum alloy, ceramics and so on.
These control materials, which are commonly used as structural materials or first walls in fusion devices, can better reflect the neutron irradiation resistance of the test materials.
[A set of irradiation conditions: PWR pressurized water-cooled reactor, irradiation temperature of 702K, fast neutron injection capacity of 5.1×10/cm]
[A group of irradiated materials: experimental group (zirconia carbon composites) control group (austenitic steel + tungsten gold)],
[DPA production rate of one group: experimental group (0.17%), control group (2.4%)]
[Neutron penetration in one group: experimental group (99.98%), control group (67.44%)]
[Self-healing of a set of Ferencel defect pairs:]
The experimental data quickly swept through the eyes, accompanied by almost irrepressible joy and excitement.
In the first wall material, whether it is the rate of Dpa, the neutron penetration, or the self-healing of the Ferinkel defect pair, are very important indicators.
This is especially important for the first wall structure of the Daybreak Fusion Experimental Setup design.
The first is the DPA production rate, which is often used to indicate the number of out-of-positions per atom in radioactivity detection, which is not too much to explain.
The neutron permeability represents the index of the high-energy neutron beam stably passing through the material, which is the key to their ability to bombard the lithium target with the high-energy neutron beam to obtain tritium and complete tritium self-sustaining.
As for the self-healing of Ferencel defect pairs, it represents the degree of self-healing of the damaged lattice after being bombarded by high-energy neutrons.
Judging from the test data transmitted back from Daya Bay.
No doubt!
And they succeeded!
Successfully manufactured a material suitable for the first wall of controlled nuclear fusion!
Although this is only a slow neutron irradiation test, it is a historical record.
Because, in the past, no country, or any research institute or laboratory has ever produced a neutron irradiation resistant material that can compete with the data on the test report in hand.
Clenching his fists tightly, Zhao Guanggui looked extremely excited, his face was excited, and he looked at Xu Chuan.
"Academician Xu, we." Zhang, he stopped talking excitedly.
Xu Chuan smiled, compared to the excitement of Zhao Guanggui in front of him, he was much calmer.
"Judging from the experimental test data of slow neutron irradiation on the other side of Daya Bay, we have indeed succeeded."
"Still." After a pause, he continued: "Compared with the real deuterium-tritium fusion in the chamber of a controlled nuclear fusion reactor, the neutron irradiation experiment over there in Daya Bay is not enough in terms of energy level or temperature. ”
"Daya Bay has a maximum neutron energy level of 1.2 Mev, and the neutron beam energy level released in the chamber of a controlled nuclear fusion reactor is as high as 14.1 MeV per grain. And in terms of temperature, the highest test temperature is only 720K, which is nearly 2,000 degrees worse than the real experiment. ”
"So, don't be so happy, our goal is to apply the first wall of structural material for the Daybreak fusion reactor, and this can only be regarded as a phased achievement."
"Once it has passed the full test of the Daybreak fusion device, it's perfectly too late to celebrate."
Of course, although this material is indeed a phased research result at present, its value is also quite amazing.
Not to mention, in the field of nuclear fission, with the excellent properties of this material, it can largely replace the cladding structure material.
After all, the production of carbon nanotubes is difficult, but it is not very expensive.
The traditional cladding materials, such as those made of beryllium gold mixed with graphite, uranium-238 and other materials, are highly toxic in both themselves and the smelting process because of the relationship between beryllium gold. If you don't pay attention, you will have a serious casualty accident.
And this zirconia carbon composite material has no problem playing with it in your hand.
In addition, some high-tech fields such as nuclear energy, rockets, military industry, aerospace, etc. can also be applied.
This is the case with top-quality materials, which can be used in many fields, even if the requirements are limited.
Hearing Xu Chuan say this, Zhao Guanggui, who was overly excited, gradually calmed down.
He smiled and said, "Academician Xu, you really have too high requirements for yourself, to be honest, if I had independently developed this material by myself before, I would have had a big banquet to celebrate for three days and three nights." ”
"This kind of material is enough to publish two or three top SCI journals."
Speaking of this, Xu Chuan shook his head with a smile, then remembered something, and continued: "Oh, by the way, you talk about this, there is one more thing. ”
"Academician Xu, you say." Zhao Guanggui quickly replied.
Xu Chuan tapped his finger lightly on the table and said, "Regarding this material, judging from the neutron irradiation test data on the side of Daya Bay, you also know that it has great application potential on the first wall of a controlled nuclear fusion reactor."
"So for now, until our controlled nuclear fusion is completed, or until it is completely confirmed that this material cannot be used on the first wall material, the relevant papers cannot be made public for the time being."
Xu Chuan opened his mouth, and Zhao Guanggui probably guessed the meaning of the big guy in front of him.
In fact, there is nothing, whether it is in universities, or national laboratories, or private research institutes, as long as the research results completed by these contracted units, such as patents and so on, basically belong to research institutes and laboratories.
These are industry practices, whether in the materials industry or in other fields, and they will all be stipulated in the contract, and there is nothing to dispute.
As for the researchers who make this achievement, they usually receive a project grant and one or more papers written in the course of the research.
Of course, if it is those top bulls, such as Academician Xu in front of him, if he is invited to a private research institute or university to participate in a certain project, he will have the opportunity to get a share of the results.
That is, how much money is sold for the results made, he can share a part.
Generally speaking, it ranges from one percent to ten percent, depending on the researcher's contributions, reputation, status, and so on.
But many times, especially researchers like him, who have participated in national key projects. After the results are made, considering the confidentiality of the project, patents, other related projects, etc., the paper may be pressed in your own hands, and it will be postponed for a period of time before it is released and made public.
Or sometimes it is even impossible to disclose or even apply for a patent.
However, for the vast majority of scholars and researchers, especially in China, papers are their hope, the materials and tools they use to build bridges and climb up, and their qualifications!
Whether it is a promotion, or a job title, such as being promoted from associate researcher (associate high) to researcher (senior researcher), what is needed is a top SCI paper.
But there is no way, many times, especially when working in a confidential project, in order to avoid helping competitors, the papers of experiments or projects that are of great help are generally postponed or stopped or published in a confidential form only in China, and there is no chance to be completely disclosed until the project is over.
Although the paper is not a complete experimental data and report, and only part of the data and relevant information are recorded on it, it is enough to provide a feasible idea for competitors.
Of course, this is often the case, and it is also common for the research institution or laboratory to compensate the researchers involved.
It is more common to pay more bonuses after the end of the project, and more funds for the next project scientific research.
In addition, there is also a more awesome reward, he had a colleague before, who was also engaged in material research and development with an academician, and after the same work, he found that the materials were kept secret, and the written papers could not be made public.
Then the academician directly threw the two material papers he had originally made to him.
The result is one top-level SCI paper in exchange for two top-level SCI papers.
For a researcher, this kind of thing is probably a blessing from heaven.
After all, many times the evaluation of job titles or promotions depends on the number of papers and the grade of the journal.
At the same grade, one for two, isn't this pie in the sky?
To be honest, if he could, he Zhao Guanggui would also want this!
Of course, it is not possible to give more bonuses and postpone the publication of the paper.
After all, it is the result of the birth of a super project such as controlled nuclear fusion, or the first wall material field, and the influence is naturally leveraged.
Of course, these compensations are actually based on good trends, or meeting a good boss.
Sometimes, if you have a bad leader or boss, you will be a fool.
What kind of young man, don't be so utilitarian, isn't it just a paper? Anyway, you still have so much time to do scientific research in the future. As a man, you must have a collective dedication, you must know how to be grateful, the institute has given you a salary and a bonus for you to wear and live for you for so many years, so many scientific research funds are said to be given to you, but it is just a paper, and you have been wronged?
What young man goes back to work hard, the laboratory will not be wronged in the future, don't spend your mind on Vanity Fair.
To be honest, this kind of thing is actually pretty good.
What's more serious, just take your first work and the paper you wrote, give you a second work, and then the bonus and performance are not not not mentioned, if you talk back and expose something, you may be expelled directly.
These phenomena are also real in academic circles.
Of course, here in front of him, Zhao Guanggui is not worried that this kind of thing will happen.
In the eyes of this big guy, what is a SCI?
Computing is a top-level SCI paper such as Nature and Science, and it is nothing in the eyes of this big guy.
After all, you don't look at how many top-tier world puzzles he has solved.
He has solved two of the seven millennial problems in mathematics alone.
What he is more concerned about is how to compensate him with the arrogance of this big man.
On the other side, Xu Chuan saw the expectation on his face, smiled, and said, "Don't worry, the relevant compensation results will not disappoint you." ”
"Whether it is a material bonus or a related honor, it will not be disadvantaged to you."
"Including the paper, at present, my personal opinion is to postpone the public, but the follow-up needs to be discussed, if it is confirmed that this paper cannot be disclosed, the institute will compensate you for at least two top SCI papers in the direction of materials, and the first work and the corresponding author can write your name, which is counted as something you independently research."
Hearing this, Zhao Guanggui's eyes lit up, and he blurted out: "I am willing to obey the arrangement!" ”
(End of chapter)