A powerful country in scientific research

At night, Su Ran lay on the bed, staring at the ceiling, thinking about what her grandma and grandpa had just said, and felt a little moved.

She said softly: "System, are you there?"

The system responded: [Yes, host, what can I do for you? ]

After a moment of silence, Su Ran said, "System, can you tell me about the specific situation of X-ray machines in this era?"

The system replied: [OK, host, I will check it. ]

Su Ran didn't wait too long. After a while, an electronic sound rang in his ears.

[It is 1976 in China. X-ray imaging technology mainly uses film imaging. Film is a transparent substrate containing photosensitive emulsion. Through exposure, development and other processes, X-ray photos can be obtained. ]

Hearing this, Su Ran frowned. In her previous life, she had a college roommate who studied medicine. She heard this roommate mention that China seemed to use something called digital imaging technology. Even if it is not available now, film imaging? ? It sounds very backward.

"System, can you help me find some information about film imaging?"

[Ok, host. 】

The next second, a book appeared in front of Su Ran. On the top of the page that was opened were four big words written: "Film Imaging".

She took a quick look, and the more she read, the tighter her brows furrowed.

Film imaging X-rays use the absorption of X-rays after passing through the human body to form images. After passing through the human body, X-rays will be absorbed to varying degrees by the patient's internal tissues or bones and other substances, thereby producing different intensities. This intensity is recorded on film to form a black and white image.

This technology not only has poor imaging quality and high requirements for exposure time and exposure, but also has high requirements for the location, angle, exposure and other parameters of the photographed part, which can easily lead to errors and missed diagnoses. In addition, when film is used for imaging, chemical agents such as developers and fixers are required. These chemicals are harmful to the environment. Each film can only be used once and cannot be reused, which is too wasteful.

Most importantly, film imaging systems have lower sensitivity and require higher levels of X-ray radiation, which may pose a risk of excessive radiation to the patient.

Su Ran felt a little uncomfortable for a moment. She knew that medicine in that era was very backward, but she didn't expect it to be so backward. Maybe she could really try to make advanced medical testing equipment for future generations.

Thinking of this, Su Ran quickly turned the book to see if there was any introduction to the 21st century X-ray technology. Sure enough, he saw it after just a few pages.

Su Ran quickly browsed the contents of the book...

"A digital X-ray camera uses X-rays and digital imaging technology to capture the internal tissues and organs of the human body in a non-invasive way. A digital X-ray camera consists of an X-ray source, a detector, a signal processing circuit, and a computer. The X-ray source generates high-energy X-rays, which pass through the inspected part and are received by the detector. The detector converts the received X-ray signal into a digital signal, and performs operations such as amplification, filtering, and digital conversion through the signal processing circuit, and finally transmits the imaging information to the computer for processing and display."

When she saw the word "computer", Su Ran frowned even more tightly. She had thought too simply before, thinking that medical equipment was as simple as a television... She was overthinking.

The inside of a computer is very complicated, whether it's the motherboard, CPU, graphics card, hard drive, or memory, each one is much more complicated than the inside of a color TV, and they are all areas she has never been exposed to before. It is basically impossible to make them in a short period of time, even if she has drunk brain development fluid.

But no matter how difficult computers are, she will have to learn about this field sooner or later. She can't avoid it, and she won't avoid it.

As a modern person who traveled to this era, how could she not know the importance of computers to the development of this era? Since she planned to work hard to make the country better, she naturally had to face the challenge and strive to bring computers to the market as soon as possible. This time, she wanted to make China lead the world.

First, make the computer. With the computer, we can continue to research digital X-ray imaging technology. Then both digital X-ray cameras and digital X-ray fluoroscopy machines can be made!

After figuring it out, Su Ran sat up excitedly.

"System!! If I study computer-related courses, will I get points?"

System: [Of course! Points are calculated the same as before, based on the degree of completion. If you complete 100%, you will get 8000 points, if you complete 95%, you will get 7000 points, and if you complete 90%, you will get 6000 points.]

Hearing the system's words, Su Ran's eyes lit up, "System, how many points do I have now?"

[Host, with the existing points, do you want to start a new task? ]

When she completed the agricultural task before, her points were finally full. She won the brain development fluid in the lottery. Later, she went to the experimental field. Because she left school, the system had not arranged any new tasks for her. It was later that she took the initiative to make a plastic vacuum packaging machine and made the "new material" of this world. Su Ran completed the hidden task and her points increased by 4,000.

Su Ran nodded, "Yes!"

After a beep, the system voice sounded.

[In view of the host's request, the latest task is now released: the host can explore new learning directions, and the points will be calculated according to the degree of completion. If you complete 100%, you will get 8000 points, if you complete 95%, you will get 7000 points, and if you complete 90%, you will get 6000 points. ]

After saying that, a virtual screen appeared in front of Su Ran.

Su Ran swiped the screen and put a check mark behind "Computer Science and Technology".

After the screen disappeared, Su Ran showed a relaxed smile on her face, she lay back on the bed and slowly closed her eyes. She planned her study schedule for the next few days in her mind, and gradually, Su Ran felt her eyelids getting heavier and heavier, and soon, she fell asleep and had a good night's sleep.

......

The next day.

Su Ran got up early. Although she didn't have to go to work today, she woke up early because of her biological clock. After doing two rounds of strengthening exercises in the yard, Su Lei and Jiang Hongmei also came downstairs one after another.

Grandma Jiang prepared the meal, and Grandpa Jiang came back from his walk, and the family had breakfast in the restaurant.

On the table were steaming millet porridge, fried dough sticks, boiled eggs and pickles, as well as a large steamer full of dumplings.

While serving porridge, Jiang Hongmei said to Su Lei, "Xiao Lei, do you have an exam today?"

Su Lei, who was happily eating steamed dumplings, froze when he heard his mother's words. He swallowed the buns and said with a forced smile, "There is an exam."

Su Ran looked at his brother's smile and couldn't help but curl his lips. It seemed that this kid hadn't studied much recently and was so scared when talking about exams.

She picked up a fried dough stick and put it on the empty plate next to her, then took two boiled eggs and put them next to the fried dough stick, then handed the plate to Su Lei.

"Here, eat it."

Su Lei quickly waved his hand, "No, sister, I'll just eat a boiled egg, you can eat it yourself."

"This is not an ordinary boiled egg. This is a perfect egg. You can get a perfect score in the exam if you eat it." Su Ran explained with a smile.

Jiang Hongmei laughed when she saw this. Her daughter was quite humorous.

When Grandma Jiang heard her granddaughter's words, she looked at the plate and couldn't help but smile, "Very good, Xiaolei, eat quickly."

Su Lei: (⊙o⊙)…

"Okay." After saying that, he took the plate and started eating seriously.

What if it’s true!