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Chapter 213 Particle Accelerator Experiment

Soon, Dean Yang brought Chen Zhou and Yang Yiyi to his destination.

Yanjing National Laboratory of Molecular Science.

Dean Yang is also the deputy director of the Nuclear Physics and Nuclear Technology Laboratory here.

When Chen Zhou arrived here, he realized that this topic was so big that he even used the National Laboratory.

In the laboratory, a group of white coats were walking in a hurry and very busy.

Because President Yang helped Chen Zhou and Yang Yiyi report in advance, the relevant review procedures were basically completed.

So the two of them were in the laboratory without wasting much time and received the items needed for the laboratory work.

Then, Dean Yang took the two to the core area of ​​the laboratory.

The people here are also members of the core team of the Nuclear Physics and Nuclear Technology Laboratory.

"This is Lin Xiaoen, your senior, a PhD in the Department of Physics of Yan University, this is Ma Zihao, your senior, a PhD in the Department of Water and Mu Physics, this is Peng Jia, your senior..."

Dean Yang introduced it one by one.

Chen Zhou and Yang Yiyi naturally greeted each other.

Lin Xiaoen and others also said enthusiastically: "I have heard from Director Yang that he wants two newcomers to come, but we have been waiting for it for so long, so we can wait."

Peng Jia also said, "Yes, when Dean Yang said this, it seems like you were just on summer vacation."

Chen Zhou replied with a smile: "We have just finished the military training, so is Dean Yang just here?"

Lin Xiaoen looked at Chen Zhou and Yang Yiyi and smiled and said, "I'll tell you why you two are like they came back from Africa, they are so tanned..."

"Hey, Dalin, be careful of your words, there is a girl!" Peng Jia glared at Lin Xiaoen.

"It's okay, senior sister, Senior Lin is right. The sun was too strong for this military training, so it never rained." Yang Yiyi smiled slightly and said that she didn't mind.

"Look, senior sister, senior sister said so..." Lin Xiaoen said.

President Yang glanced at the few people and interrupted, "Okay, let's talk less, how are you preparing for the experiment?"

Hearing Dean Yang's words, Lin Xiaoen and others instantly put away their joking expressions.

Lin Xiaoen and Ma Zihao looked at each other, and Ma Zihao said: "Director Yang, the preparations for the experiment have been completed, and the experiment time has been set to officially start at 10 am."

President Yang looked at his watch, and there was still half an hour before ten o'clock: "Okay. Please check the experimental device again to ensure that the experiment can proceed smoothly. In addition, Peng Jia, you will take Chen Zhou and Yang Yiyi to get familiar with it.

Experimental process.”

"Okay, Director Yang (Dean)." Everyone responded in unison.

Afterwards, Lin Xiaoen and others went to check the experimental device again as Dean Yang's request.

Chen Zhou and Yang Yiyi followed Peng Jia, wandering around the laboratory, familiarizing themselves with the experimental process of particle accelerator.

"You all know the experimental principles?" Peng Jia asked, bringing the two of them to the accelerator.

Chen Zhou and Yang Yiyi both nodded.

Peng Jia glanced at the two of them and said softly: "Tell me, look."

Chen Zhou and Yang Yiyi looked at each other and said, "Why are we testing?"

Chen Zhou blinked at Yang Yiyi, and Yang Yiyi understood and said, "The general principle of generating high-power particle beams is to resonantly charge the pulse formation line by the marx generator, and then discharge the diode through the transmission line, and the diode will be electrically charged.

Pulse energy is converted into particle beams.”

Hearing Yang Yiyi's words, Peng Jia nodded, then looked at Chen Zhou, as if waiting for his supplement.

Chen Zhou smiled slightly in his heart, thinking that this senior sister was also interesting, and he actually used this simple principle to test the two of them.

But this principle is indeed simple. Yang Yiyi has finished talking about it. What should he say?

Chen Zhou thought for a while, met Peng Jia's gaze, and said, "The working polarity of the diode depends on the electron beam or ion beam. When the high voltage reaches the diode, the surface of the cold cathode microscopic protrusions, forming a 'beard'.

As the field enhancement forms field emission, a beard explosion occurs due to Joule heating, forming plasma sheath near the cathode.”

"Electronics are emitted from the plasma sheath, which will move to the anode at a speed of 3-5cm/μs. The electron flow is limited by space charge in the anode gap, and when a strong ion beam is generated, it is necessary to

Suppress the flow of electrons in the diode."

"The physical process of diodes involves solving Maxwell's equations and electron motion equations under complex boundary conditions..."

"Okay, let's take a look at the composition of this accelerator." Peng Jia interrupted Chen Zhou at the right time. She was just on a whim and wanted to see the preparations of the two.

It’s not that I don’t believe in Dean Yang’s vision, but that many people often can’t understand the simplest principle.

"The experimental device, that is, particle accelerator, corresponds to the principle mentioned by Yiyi's junior sister just now. It is mainly composed of magnetic pulse generators, double-forming lines, pulse autotransformers, magnetic insulated diodes or electronic diodes."

Peng Jia said as he pointed at the big guy in front of him and introduced him to Chen Zhou and the others one by one.

Hearing Peng Jia's words, Yang Yiyi asked, "Senior sister, does this accelerator use the traditional way of generating strong current pulse particle beams?"

Upon hearing this, Peng Jia nodded gently: "That's right, after storing the static energy, it will be released in a very short time, and a particle beam focusing technology is used to generate a particle beam of high energy density."

After a pause, Peng Jia smiled and said, "I guess you can see that although Director Yang has sent you a lot of research materials, it actually involves very little content. What are your problems?

Just ask me now."

As Peng Jia said, most of the project information sent by Dean Yang to Chen Zhou and the others was theoretically based on the content of the experimental device.

Otherwise, Yang Yiyi would not even know that the accelerator used in the experiment uses the traditional method of generating strong current pulsed particle beams.

Since Senior Sister Peng Jia said everything, Chen Zhou naturally would not miss the opportunity to ask questions: "Senior Sister, I just heard you say about magnetic insulating diodes or electronic diodes, which one is our experiment using this time?"

Peng Jia glanced at Chen Zhou, paused for about 3 seconds before slowly saying: "Theoretical and numerical simulation of strong constriction focus diodes have always been a hot topic in the international research on strong current pulse particle beam technology, so we naturally have

It is not exempt from the common people. I won’t tell you more about the specific ones, you will know in the future.”

After saying that, Peng Jia continued to introduce other auxiliary devices in the experiment to Chen Zhou and the others.

These things must be clearly understood and mastered by every experimenter.

At this time, Yang Yiyi quietly said in Chen Zhou's ear: "You are asking too urgently."

Chen Zhou was slightly stunned and understood in an instant.
Chapter completed!
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