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Home > News > How big is the X-Ray baggage equipment's radiation?
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How big is the X-Ray baggage equipment's radiation?

How large is the security equipment, security inspection equipment, baggage security inspection machine, security inspection machine, X-ray machine
Is the radiation from the security equipment of the subway, railway station and airport "shooting people"? We must make clear:
● The security door that the personnel pass is a Metal Detector, not an X-ray device. The inspection of the item is to use X-ray.
● From the data point of view, the standard radiation leakage dose of the security inspection machine is close to the radiation background value of the natural environment, and there is no risk of radiation from the side.
Recently, the media reported that there may be a radiation leak in the Shenzhen Metro security inspection machine. Since then, some inspection machines of the Shenzhen Metro have been suspended. The Provincial Environmental Protection Agency has also issued a document requesting environmental protection law enforcement inspections for radiation installations throughout the province. The aftermath of the incident has not been broken. Many people still worry that they have been exposed to security screening machines. Have they been exposed to nuclear radiation? Pregnant women are even more worried. Will the security screening machine harm the intra-abdominal baby? Director of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-Sen University, China Professor Jiang Ningyi, vice president of the Nuclear Medicine Branch of the Physician Association, said that [radiation" is daunting. In fact, radiation is everywhere, and it is closely related to people's lives. [It can be said that human evolution is accompanied by radiation."
80% of radiation comes from nature
Professor Jiang Ningyi said that "radiation" includes natural radiation and artificial radiation. 80% of the radiation received by the human body comes from nature, including cosmic rays in outer space, helium, and radioactive radiation naturally present in ordinary substances in nature. The soil, air, houses, oceans, rivers, food, vegetables, drinking water, etc. around us contain trace amounts of radionuclides.
The remaining 20% of people are radiation, the most important of which is medical radiation. Radiology, nuclear medicine, and radiotherapy in hospitals use "radiation" to diagnose and treat diseases. In addition, the industry also has industrial flaw detection using the principle of [radiation", radiation breeding in agriculture, radiation disinfection of daily necessities, nuclear power plants, etc., all of which are pioneering efforts to improve the quality of life by using radiation. In short, as long as the reasonable use of radiation is safe, it can benefit humanity. "Radiation" does harm health as well, but the prerequisite is excessive exposure.
Security radiation is much lower than medical X equipment
The security equipment of subways, railway stations and airports is a kind of equipment for detecting objects. There are many types, the most common one is channel type X-ray machine. When the object passes through the security inspection machine, the X image is obtained, and the image is processed by the computer and displayed on the computer screen, and the image can be recognized to evaluate the security of the object. Professor Jiang Ningyi said, [It is like a hospital X-ray examination, but the X dose of medical X equipment is much higher than that of the security inspection machine. The tube current of the medical chest-piercing machine is 50 times that of the security inspection machine."
The studio in the security inspection machine must have a certain dose of X-rays, but only the luggage items are put in and checked, the human body will not enter, and thus will not touch the rays. According to media reports, recently, Li Qing, director of the Guangdong Provincial Environmental Protection Department, also responded to online interviews on the provincial government portal. Security inspections in public places such as airports, railway stations, and subways were conducted separately for personnel and articles. Security gates passed by personnel. It is a metal detector, not an X-ray device. The inspection of the item uses X-rays, so the person is not exposed to X-rays through the security check.
Then, will people be exposed to radiation from the X-ray device that detects the object? Professor Jiang Ningyi believes that, in general, an inspected security inspection machine will not have this possibility and should be safe. . From the data point of view, the standard ray leakage dose of the security inspection machine is close to the background value of natural radioactivity. According to media reports, Li Qing, director of the Guangdong Provincial Environmental Protection Department, also said during the interview on the website that according to the relevant UN technical report, staying in the vicinity of the X-ray security inspection machine for 5 hours is equivalent to a medical X-ray chest, so it will not It affects the health of the surrounding population.
Medical X inspection is beneficial and harmless
Then, since the X dose of medical X equipment is much higher than that of the security inspection machine, is there any danger of [shooting" for medical examination? Professor Jiang Ningyi said that whether radiation has an effect on the human body depends on the amount of radiation received and radiation. The total amount, the time of exposure, and the body's ability to regulate these radiations.
There is a basic principle of use for medical radiation: the justification, optimization and dose limitation of exposure radiation. That is, the patient needs to take the irradiation inspection and treatment for the needs of the treatment. The radiotherapy is the most superior technology and equipment. The hospital radiologists are all [radiation" professionals, ensuring that the patient is within a certain limited safety range. A small amount of radiation is accepted, so patients do not need to have this psychological burden at all.

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