Chapter 1393: Everyone is just like that, do you really want to solve the problem?


    There is silence.


    Not to mention support or objection.


    Except for Fang Jianming and Huang Zhitao who were prepared for a long time, even the Chinese delegation did not react for a while.


    Originally, the content they prepared was relatively routine, and it was simply a part of the test report about the "Oriental Super Circle", which was considered a response to the task assigned by ITEA.


    So when Peng Juexian came on stage just now, they were still worried that compared to Robert Hull''s shocking moment, would such ordinary content be too unattractive, resulting in their own side''s frustration in the subsequent negotiation process.


    Now that they don''t have to worry about this anymore.


    Instead, almost no one knows what will be behind it.


    Kim Ki-min, who had met Peng Juexian the day before yesterday, looked shocked, his eyes full of confusion and shock, "Axi, why don''t you notify me of such a big job?"


    In fact, this is not intentionally concealed by the former, otherwise it would not be kept confidential to members of the country''s delegation.


    It was really not yet settled until the early morning of this day.


    After receiving the theoretical explanation given by Chang Haonan, Peng Juexian had already understood the content before, but it took him several hours to understand it himself. In addition, he had already been very nervous when he temporarily revised the speech.


    Instead of notifying everyone temporarily after entering the venue, it is better to bring a real surprise.


    Anyway, no other members need to do anything today.


    In short, several Chinese representatives couldn''t help but open their mouths.


    But in such a formal occasion, it is impossible to question yourself, so I had to hold it in.


    The first thing I realized was the on-site meeting, and I quickly switched the projector to the signal channel of the Chinese delegation.


    The French "Thank you for listening" on the curtain suddenly turned into a line of bold English titles.


    "Model explanation and theoretical control scheme for sawtooth oscillation and plasma collapse."


    Until then, the first representative below reacted:


    "Does China think that the goals set by Academician Hull cannot be achieved?"


    Logically speaking, there has not been a QA link yet, so no one should ask questions.


    But under this situation, obviously no one cares about these details.


    Including Peng Juexian himself.


    "This is not... I think Academician Hull''s goal can be achieved, but it does not have the value of an engineering perspective."


    He said and switched PPT to the first page where there was really content.


    "Please look at this schematic diagram of plasma waveforms from the TEXT-U medium-sized tokamak device at the University of Text-U at Austin."


    The reason why we chose a medium-sized tokamak device was because Huaxia had purchased the TEXT-U in 2007 and then rebuilt it into a J-TEXT, thus gaining all first-hand information.


    However, because it has not been timed to be officially put into use, these experimental data were still published in the United States in the early years, which can avoid many unnecessary doubts.


    After a brief pause for a few seconds, Peng Juexian continued:


    "Although the scale is relatively small, you can compare it with the data given by Academician Hull just now."


    Hundreds of eyes at the scene immediately turned to the direction of the French delegation.


    Although Robert Hull, who suddenly became the focus, had a bad premonition, he was now being raised and could not refuse. He had to nod and signal the secretary next to him to also call out the waveform diagram on his PPT.


    Soon, the waveforms of the two overlapped together.


    It''s like two sharp blades that cross into the old theory.


    "Please note the frequency ratio of the circumferential magnetic field to the pole magnetic field."


    Peng Juexian enlarged the coordinate axis, and the vertical coordinates originally compressed by the French instantly filled the screen:


    "When the ratio between the two is close to 1.618..." "Golden division?"


    The Italian representative''s muttering sound almost blurted out, and it ended up in the ears of almost everyone at the scene, which immediately triggered a whisper of surprise.


    Peng Juexian also knew that the other party was not intentionally interrupting, so he suppressed his smile and waved his hand:


    "No, the 618 after the decimal point is just a coincidence, there are actually more digits..."


    He explained:


    “In fact, this is the tipping point for spiral resonance.”


    Peng Juexian''s laser point circles on a differential equation:


    "Academician Hull mentioned in his speech just now that it is magnetic reconnection that causes energy escape, but it is actually a chain reaction caused by resonance - just like the timing of pushing a swing may affect the amplitude and frequency of the swing, but in the final analysis, it will hinder the generation of swing..."


    “…”


    As he introduced, the sound of paper flipping and keyboard typing gradually sounded in the audience.


    The newest ⊥Xiao⊥Speak⊥Send⊥Six⊥9⊥Book⊥⊥⊥⊥Back⊥⊥⊥⊥!


    This time the theoretical introduction was unexpectedly short, and after only a few more minutes, it was approaching:


    “So, based on the jagged tooth collapse criterion we obtained, it can be concluded that there are two main ways to control jagged instability.”


    Peng Jue said this first, stopped and took a deep breath.


    He was not just trying to leave time for others to understand, but he was indeed a little dizzy because of fatigue and excitement.


    After a little recovery, he finally came up with the most important conclusion:


    "One is to control the period of sawtooth oscillation by adjusting the magnetic shear on the q=1 side, and the other is to control the amplitude of sawtooth oscillation by changing the disturbance potential energy term of magnetofluid mechanical instability."


    As soon as these words came out, there was another whisper.


    "I know what you think at this moment - this conclusion seems to be the same as Academician Hull''s report just now, right?"


    No one replied, but judging from the expressions of the listeners in the front rows, his guess was not wrong.


    "Here, please note that whether it is low-mixed wave heating or neutral beam injection, it can only simply extend the period of sawtooth oscillation, while the disturbance amplitude will still gradually increase with time, and lead to a accompanying increase in parameters such as temperature and density."


    Peng Juexian''s speech speed is getting faster and faster:


    "In other words, it can only delay but cannot truly solve the occurrence of serrated collapse. It will not only not solve the problem, but will also affect the normal discharge of impurities in the plasma core. It is a method of treating the symptoms but not the root cause. Even if the controllable time of the plasma can be increased to 600 seconds, 6000 seconds or even longer, once it is separated from the high-energy input, the core will break instantly, and the steady-state existence of the plasma cannot be truly realized."


    It was not until this time that everyone finally understood why he just commented that Hull''s plan "has no engineering value."


    At this stage, no matter who the tokamak device is, it requires an energy input of super-power to maintain the existence of plasma. If converted, the energy consumed will be even greater than the output energy of future fusion power generation.


    Of course, with the current level of human fusion research, it can only focus on the maintenance time of plasma, far from considering energy gains and losses.


    But no matter what, the ultimate goal of controlled nuclear fusion is still to provide endless energy.


    Hull''s method will only make ITER farther and farther away from this ultimate goal...


    Now that things have come, Peng Juexian no longer keeps it:


    "Therefore, our solution is to improve the topological structure of the magnetic field by adding a spiral field, so that the disturbance amplitude of the sawtooth oscillation is strictly maintained and the potential for eliminating impurities is ensured, while the potential for the collapse of the plasma core is completely eliminated in principle!"


    Now, the atmosphere in the venue became subtle-


    When everyone engages in controlled nuclear fusion, especially when joining ITER, they are all monks and bells.


    No matter what method, if you can make some progress and make a difference, you will be considered a victory.


    Why did you suddenly act like you really want to solve the problem?


    (End of this chapter)