Chapter 89 Radiation
When the group arrived at the X-ray room, Dr. Xiao and Xia Jing had been waiting for a while. The first aid supplies in the bag are also placed on the table one by one for easy access later.
After Xie Bisheng arrived, the staff who were originally guarding the room withdrew.
"Huh?" Dr. Xiao was stunned for a moment, "He is out, who will control the equipment?"
Dr. Xiao can control various medical machines, but although the equipment in front of him is... A magnified X-ray machine, but obviously the operation is different from medical equipment.
"I'll do it." Xie Bisheng said calmly.
Everyone then remembered that Xie Bisheng was originally a scientific researcher. It's just that he is older and no longer works on the front line. It should be easy for him to operate the machine.
"I proposed to build this machine. I didn't expect it could be used in other times than Pangu." Xie Bisheng also didn't expect that when Yu Guangli reported the situation to him, he almost felt like he was doing something wrong. Rejoice.
Machine operation is not complicated for Xie Bisheng, what is complicated is the state of the stars.
Based on the special nature, he rushed to build an operating room similar to a hospital.
In order to prevent the stars from exploding out of control, the six sides of the filming room are reinforced with particularly thick steel plates. Such intensity will definitely not be able to stop Xingchen for long. But because she is not yet stable, there is a time limit for her transformation. Xie Bisheng felt that he should still be able to hold on for 10 seconds.
In order to prevent radiation, the steel plate was covered with a thick lead plate, and even the ground was covered with a thick layer of barium sulfate concrete, and then a layer of tempered bricks was added.
The partition between the shooting room and the operating room is also protected.
The gate is made of steel gate surrounded by lead plates. Thick lead glass was used on the shooting room side, and high-strength bulletproof glass was added on the operation room side.
A room like this is extremely explosion-proof and radiation-proof.
"I suggest that Lin Fan go in alone while we all support him outside." Dr. Xiao studied the machines inside while waiting.
“Isn’t it okay to take a little radiation occasionally?” Li Chunhua asked.
"That's an ordinary medical machine. Look how big this machine is." Dr. Xiao motioned for them to look into the room.
The huge X-ray machine occupies an entire wall of the room, 3.5 meters high and nearly 2 meters wide. The area of a single exposure is nearly 7 square meters. This amount of radiation is naturally much stronger than that of ordinary medical equipment.
"Isn't it okay to wear lead clothes?" Xia Jing asked with a frown. People who accompany filming or medical staff in hospitals often use lead clothing to reduce the impact of radiation on themselves.
"No," Dr. Xiao shook his head, "The area of this ray is too large."
"But doesn't Lin Fan want to stay in there?" Jin Sichen knew that he wanted to leave Lin Fan in there to eat radiation. , couldn't help but worry about her body.
"You may not understand what radiation is all about. Let me explain it to you." Dr. Xiao saw that everyone seemed to have only a little knowledge of radiation, so he had no choice but to take up science popularization work.
"There are two types of radiation that we are exposed to daily: one is called electromagnetic radiation. It is mainly caused by electromagnetic fields and alternating electromagnetic fields. Such as mobile phone base stations, TV stations, high-voltage lines, mobile phones, computers, microwave ovens, etc. All will produce electromagnetic radiation.”
“Many people know this and are even afraid of it, but they don’t know that ionizing radiation is even more terrifying.”
"Ionizing radiation, also known as nuclear radiation. It is mainly caused by high-energy particle rays, such as ultraviolet rays, X-rays, gamma rays, beta rays, radioactive source rays, etc. in sunlight. The higher the vibration frequency of the particles, the greater the energy. "
"What we are going to take next is X-ray fluoroscopy. This ray itself has no charge, but when it penetrates the human body, it interacts with the energy in the body. Materials act to produce 'secondary particles'. This 'secondary particle' will ionize the material in the body, thus producing ionizing radiation. "
"The harm of radiation to the human body is not direct. It destroys human DNA through the action of ionizing radiation, leading to a decrease in immunity and a higher risk of inducing cancer, leukemia and other diseases. Cause fetal malformation. "
"According to the latest international standards, the human body can withstand up to 7 Sieverts of radiation. For every 1 Sievert of radiation the body receives, the cancer risk will increase by 0.0165. "
"For example, it takes about 0.5 seconds to take a chest X-ray. In a normal-sized exposure area, the radiation exposure rate is about It is 0.045 millisieverts per second, which means that if you take a chest X-ray, you will receive 0.023 millisieverts of radiation and increase the cancer risk by 0.0003795 times. "Different body parts have different internal structures and tissue thicknesses, and the exposure time is different. Varies. The thicker the soft tissue, the longer the exposure and the amount of radiation.”
“Normally, for one exposure, the abdomen will receive approximately 0.54 millisieverts of radiation, the individual limbs will receive 0.01 millisieverts, the pelvis will receive 0.66 millisieverts, the lumbar spine will receive 1.4 millisieverts, and the upper gastrointestinal tract 2.55 millisieverts. "
"This is still the radiation of X-rays. If you do a CT, the amount of radiation will increase to 8 times. If you only do an examination once in a while, this level of radiation will be high. The quantity doesn't matter, but look at the size of the machine inside." Dr. Xiao took a breath and continued.
“The harmful effects of radiation depend on the intensity and duration of exposure. But at the same time, it also has a certain degree of randomness. Some people may not have problems even if they receive a high intensity of radiation in a single time. This also proves that the human body has a certain tolerance to radiation.”
“Given the situation of Xingchen and her size, there is no reference value for the whole-body exposure time. We are not even sure whether it can be within 10 seconds. It will be completed within a few minutes. But at least she has a metal shell that can block a certain degree of radiation. Although there is a risk, it may not be a big problem. What can you do to resist radiation?"
Dr. Xiao talked a lot and was very tired. Xia Jing handed over a bottle of water in time, and Dr. Xiao took a few sips.
"Isn't radiation protection clothing also good?" Li Chunhua asked hesitantly.
There is no shortage of radiation protection suits in 800. When the giant X-ray machine was used on Pangu before, it was connected to the equipment platform, and then all the staff put on radiation protection suits to work.
"Of course you can wear radiation-proof clothing, but you can't speak or move as freely as you do now after wearing those clothes. What's the point of going in?" Xie Bisheng replied, looking at Song Ren emphatically. .
If you wear protective clothing, it will definitely be inconvenient to pull out a gun. If something unexpected happens, it is better to wait outside and wait for Xingchen to transform back into Lin Fan after 10 seconds before going in to deal with it.
Song Ren accepted Xie Bisheng's meaning and lowered his eyes in thought.
"Actually, the distance from the observation window to the inside is not far. If you want to talk, there is a microphone to shout, which is much louder than shouting by yourself." Xie Bisheng advised again.
A few people took another look, and sure enough, the space in the shooting room was not large, 20 meters square.
The machine fixed the shooting position. If they stood there, the distance between them and the stars would indeed be about the same as the previous few times.
Looking at it this way, apart from being separated by a wall, there doesn’t seem to be that big of a difference.
"But, what if the shell of the star is not radiation-proof?" Jin Sichen knew that it was useless to follow him in. This matter was inevitable, but he still wanted to be more sure.
“Ke Wenbin has tested the radiation resistance of 818 before.” Song Ren replied, “Although the interior cannot be disassembled, 818 can isolate radiation. They speculate that the stars that can absorb 818 should also be radiation resistant. Ability."
"It's just speculation. What can it prove?" Jin Sichen frowned deeper.
If the star does not have radiation resistance, or the radiation resistance is not that high, then the consequences of being exposed to rays for 10 seconds... He can't imagine it.
A group of people frowned, and everyone hesitated more or less.
"How about..." Xie Bisheng couldn't see it, and sighed secretly in his heart, wanting to forget it.
Not only Jin Sichen, but also several other people in 623 showed obvious hesitation.
As soon as he opened his mouth, Lin Fan spoke up.
"Okay, don't think so much. Isn't it just about making movies? Come on!"
Here is another knowledge point for everyone, hahaha. I specifically searched for the harm of radiation to the human body. Alas, I wouldn’t know if I didn’t search. But there is no need to panic too much. As mentioned in the article, damage is based on intensity and duration. As long as you don't go to the hospital to take X-rays every day, you have nothing to worry about when using microwave ovens and mobile phones on a daily basis. You must know that the sun also radiates radiation, hahaha. Is this chapter professional enough? Vote vote. Comparison
(End of this chapter)