For the optimal design of diodes, Chen Zhou can be said to have some experience.

After all, there is the accumulation of previous particle accelerator experiments.

But this experience is still very limited.

Because the previous particle accelerator experiments were used to study the intensely pulsed particle beams through the experimental effects of different diodes.

It does not involve the optimal design of different diodes, or the optimal design of a specific type of diode.

According to Chen Zhou's research experience during this period, the optimal design of diodes is actually the principle and application of strong pulse particle beams, and a small topic in this big topic can be regarded as a subdivision of it.

Chen Zhou felt that this was also the reason why Dean Yang asked him to choose this as his graduation topic.

There is potential, there is accumulation, and it is not too difficult.

Moreover, you can borrow it from Dean Yang at any time when you are in the laboratory.

At this point, Dean Yang had already said hello.

As long as Chen Zhou needs it, he can go to him at any time, and he will arrange the affairs of the laboratory.

In this regard, Chen Zhou is still very pleased.

He always felt that he had been tricked by Dean Yang.

The arrangement of the laboratory is the compensation made by Dean Yang under the guilt.

After going to the cafeteria for lunch, Chen Zhou returned to the library to continue his research on the optimal design of particle accelerator diodes.

The overall theoretical research process has been proceeding according to his plan.

If nothing else, this afternoon, Chen Zhou will be able to get the theoretical results of the optimization design done.

Then I went to Dean Yang to borrow the laboratory and started the stage of experimental verification.

By the time the experiment is over, the project will basically be over.

Turning on the computer and turning over the scratch paper, Chen Zhou did not rush to finish before the experiment, but reorganized the previous research materials.

He wanted to see if there was anything he could adjust, if there was anything he had neglected.

In other words, is there any deeper significance to the optimized design of the diode?

The thick pile of scratch paper is full of Chen Zhou's research results for so long.

When the topic is decided, he also determines the direction of research.

First of all, the field strength distribution of cathode emitters with different diode structure shapes is simulated and calculated, and the diode model with relatively uniform field strength and moderate emission electric field strength of the cathode emission surface is obtained.

Here the calculation is calculated using a finite-difference time-domain particle simulation program that simulates the physical processes of plasma in two-dimensional space, i.e., MAGIC.

Simulate an electromagnetic field at any point in space, solved by Maxwell's equations.

In addition, the trajectories of relativistic charged particles can be solved using the complete Lorentz force equation.

After the diode models are obtained, the experimental research of particle accelerators is carried out by replacing the original diode structures with these diode models, and a diode structure with the best experimental results is obtained.

On this basis, scanning electron microscopy analysis was carried out on several types of velvets, i.e., cathodes containing velvet emitters, as well as experiments on particle generation performance.

Finally, a suitable velvet cathode, with the diode with the best experimental results, is obtained to produce a very large particle beam beam.

The overall idea and direction, as well as the method, are very simple, but Chen Zhou is obviously not the kind of person who is only willing to do simple topics.

In the course of his research, he hopes to connect with the content of previous particle accelerator experiments through the divergence of his thinking.

On the whole, whether it is a big topic or a small topic, there is no big technical difficulty.

It's more of a process of inquiry, exploring the desired outcome.

Unlike many physics topics, it is necessary to focus on solving the technical difficulties of this topic in the process of research.

When the difficulties are overcome and the results come, it will be natural.

Just like the research of controlled nuclear fusion, the technical route and theoretical knowledge are not difficult.

In other words, under theoretical conditions, it is completely achievable.

The difficult question is how to solve the problem of magnetic field binding of the plasma, and what materials can cope with the high temperature of up to 3000°C when the plasma disintegrates.

This is the technical difficulty in the research process, and it is also the difficulty that controlled nuclear fusion has not been able to break through for a long time.

Chen Zhou combed through the previous research materials and recorded his thoughts on a new piece of scratch paper.

These thoughts are not necessarily related to this topic, but they are all things that Chen Zhou finds interesting.

For example, can we find the most suitable diode that can not only meet the needs of previous particle accelerator experiments, but also meet the needs of surface modification of metal materials, and better meet the needs of the current subject?

It wasn't until around half past four in the afternoon that Chen Zhou combed through the previous research materials from beginning to end.

At the same time, he also identified diode models that needed to be experimented with by particle accelerators.

Looking at the three diode models on the scratch paper, the corners of Chen Zhou's mouth rose slightly.

Pick up the pen and circle one of them.

That one was specially prepared for his graduation project, and the other two, on the one hand, were compared with the one that was circled, and on the other hand, it was to verify Chen Zhou's own interesting ideas.

"It's time to go to Dean Yang to borrow the lab, this thing is still much simpler than Jebov guessed after all......

Chen Zhou sighed with emotion while packing up his things.

What he didn't know was that if Dean Yang heard this, he probably couldn't help but roll his eyes.

After all, in a sense, this topic can be counted as a sub-project of a national project.

How easy is this difficulty?

It's a pity that Chen Zhou doesn't think so.

He thought that perhaps only the kind of physics that theoretically required the solution of difficult problems could be compared with the Jebov conjecture.

For example, are all dimensionless parameters that characterize the physical world incalculable in principle, or are there parameters that depend solely on historical or quantum mechanical contingencies, and are therefore incalculable?

This sentence may seem complicated, but in simple terms, does God have a choice when he created the universe?

Did God ever think about these questions when he was sitting in front of the console, ready to trigger the Big Bang?

"What speed of light should I set to be?"

"How much charge should I make this little dot called an electron?"

"How big should I set the value of Planck's constant?"

Or is God grabbing a few numbers in a hurry?

Or do these values have to be because there's some kind of logic behind them?

In Chen Zhou's cognition, this is the problem, okay?

Studying such a question must be the most interesting thing.

That's the physics problem, that's the fun of physics!

Looking at the scratch paper in his hand that was about to be put into his backpack, Chen Zhou felt that it was not so fragrant.

Of course, if Chen Zhou is really asked to open such a project now, it is estimated that most people will think he is crazy......

He himself estimates that he will soon become Zhang Zhongyuan's appearance, and when the time comes, he will really become the sentence in Zhang Zhongyuan's mouth, "I have the demeanor of my youth!"

After packing up his things, Chen Zhou left the library and headed towards the administrative building of the courtyard.