Wen Yanyi has the heart to kill, I have always heard that there is only a pit father, but when I got here, this guy became a pit brother!

Although it seems that this strange doctor's equipment is no different from those in the hospital, and he knows that these instruments are not harmful to brain detection, he will feel extremely strange even when he goes to the hospital for a brain examination, let alone in this environment!

Staring at the magnetic resonance machine in front of him shaped like a 'crematorium', he only felt chills all over his body, panicked, as if he couldn't stand up as long as he lay in, with great horror.

"Senior brother, you shouldn't be afraid!"

Seeing that this guy hesitated, Liu Feng pretended to laugh and said.

To be honest, even if he is allowed to lie in this kind of place, he will feel insecure, but now is the time when the friends of the Dead Dao will not die and the poor Dao, as a senior brother, if you don't go to hell, who will go to hell?

"Laugh, joke, Lao Tzu will be afraid!" Senior Brother Wen pretended to be relaxed and awe-inspiring, "Isn't it just a test, it should be a physical examination!"

Although he knew that Liu Feng was a radical general, who told him to eat this bite?

Wen Yanyi resolutely lay on the instrument, with the tragedy of the wind and the cold water, and the strong man never returned.

In my heart, I am comforting myself: we are dedicating ourselves to science, we are dedicating ourselves to science.

Of course, it's understandable to scold the damn Liu Feng from time to time, meet someone unladylike or something.

Seeing this, Professor John Medina on the side grinned, like a big demon king who seduced a woman from a good family: "Good boy, don't be nervous, it's only a matter of 10 minutes." ”

After instructing Wen Yanyi on how to pose and settling him down, the test officially began.

Professor Medina introduced Liu Feng while operating the instrument: "The one we are using now is called an MRI machine, which is similar to the magnetic resonance detector used in the hospital, which uses radio frequency signals to detect, and the signal is generated by the radio waves transferred in the magnetic field, which can provide an anatomical view of the brain, but most of the instruments in the hospital cost hundreds of thousands to millions of dollars, and our instrument cost only 5 million US dollars." ”

"Of course, the abundance and accuracy of the assay are not the same. ”

Liu Feng shifted his gaze from Senior Brother Wen to the screen of the instrument, nodded from time to time, and listened carefully to the professor's narration.

After all, there are not many opportunities to be mentored by a world-renowned neuroscience leader.

Of course, he also felt a pity.

The principle of action of the magnetic resonance detector is similar, whether it is a hospital or a scientific research unit, the difference is only the difference in detection frequency, accuracy and precision.

However, in China, such high-end analysis and testing equipment is imported from abroad, whether it is a large hospital or related scientific research units!

Therefore, in China, the cost of doing a check-up is high, and it can be imagined.

This is all a debt owed by China in basic science and technology!

Especially in the pharmaceutical equipment industry, which causes a trade deficit of hundreds of billions every year, it is basically impossible to catch up with the advanced level of foreign countries without decades of investment and public relations.

As an idealistic and ambitious Chinese person, but there is nothing he can do about it, how can he not feel regretful?

Shaking his head, he didn't think about these bullshit things, and continued to listen to the explanation.

"The advantage of an MRI is that it provides detailed images of the brain in different dimensions, without the radioactive material of CT scans and PET scans, and without the invasive nature of angiography, it is the safest and most painless instrument in comparison!

"Of course, the disadvantage is that it is more expensive and not suitable for patients with metal objects, such as pacemakers, or for uncooperative patients, because the patient has to lie down quietly. ”

"Even so, it can't stop it from becoming the most popular and applicable instrument for brain testing!"

……

Ten minutes later, Senior Brother Wen walked down from the MRI machine in a 'prostration'.

Lying there alone, letting the instruments run and tinkering with his brain, those who have not experienced it will never feel the helplessness and desolation he felt at that time......

Of course, what made him feel helpless the most was that as the culprit, Liu Feng's guy didn't care about him at all, just staring at the instrument, and even pointing at him......

Come to the two of them.

Watching Professor Medina analyze the results of the freshly released brain imaging, the madness, as if studying his little lover, and from time to time he looked up at his brain and made a tsk sound.

Swallowing his saliva, he was a little flustered by the expression of this 'evil doctor', and Senior Brother Wen's voice trembled: "Professor, what, how's it, it's okay, right?"

"Of course, your brain looks healthy!And, it seems to be more active than the average person!" Professor Medina nodded in satisfaction, but shook his head regretfully, "It's a pity that ......"

"What a pity?"

Senior Brother Wen only felt that his little heart was about to be scared out by him, and he was shocked!

Why is he so unfavorable for the past few years, and he knows these two guys, one is more than a demon!

"It's a pity that I can't take my brain out and do a full dissection. ”

Professor Medina sighed incessantly, as if it was a pity that he had not been able to take out Senior Brother Wen's brain for dissection.

Senior Brother Wen: "......"

MMP！

Casually packed up his data, only to see Professor Medina turn his head and order Liu Feng again: "Child, next, it's your turn!"

nodded, with Senior Brother Wen's experience as a guinea pig, Liu Feng's feeling was more relaxed and casual.

Walked up to the instrument in a chic manner, touched it left and looked at it, like a curious baby.

This instrument was much more powerful than he had ever seen in the hospital!

Broadly speaking, magnetic resonance refers to the phenomenon of spin magnetic resonance, including nuclear magnetic resonance, electron paramagnetic resonance or electron spin resonance, and the magnetic resonance often referred to in people's daily life refers to magnetic resonance imaging, the principle of which is a type of imaging equipment made by using nuclear magnetic resonance phenomenon.

Nuclear magnetic resonance is mainly caused by the spin motion of the atomic nucleus, different atomic nuclei, the spin motion is different, they can be represented by the spin quantum number I of the nucleus, and there is a certain relationship between the spin quantum number and the mass number and atomic number of the atom, which are mainly divided into three categories.

One is the nucleus with zero I, which can be regarded as a non-spin sphere, the other is the nucleus with 1/2 I, which can be regarded as a spin sphere with uniform charge distribution, such as 1H, 13C, 15N, 19F, and 31P, which are all 1/2, and the other is the nucleus with I greater than 1/2, which can be regarded as a spin ellipsoid with uneven charge distribution.

Although the principle is the same, the magnetic field strength of the magnetic resonance detector in domestic hospitals is generally below 3T, and he has tested it several times, and each time it has not brought him any surprises.

However, Professor Medina's MRI machine, or ultra-high magnetic field NMR instrument, is more appropriate, and its detection intensity has reached 7T!

It is truly the most advanced neuroscience laboratory in the world!

Liu Feng was very emotional.

If he has the opportunity, he can't wait to pack this instrument and bring it back to China!

After all, experimental equipment of this strength is absolutely impossible to buy in China.

At this moment, Liu Feng did not have the helplessness and desolation of Senior Brother Wen at all, but was full of happiness, glad that he could happen to meet this 'human brain butcher'.

Come to think of it, it can really surprise our abilities!

The head was slowly sent into the cylinder area of the magnetic resonance detector, and at this moment, Liu Feng's heart was full of anticipation.