The radioactive source of radium and beryllium discovered in Henan is as powerful as a small atomic bomb.
The radioactive source of radium and beryllium discovered in Henan is as powerful as a small atomic bomb.
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Nanfang Net News "Fangcheng County, Nanyang has a radium and beryllium neutron source that has been abandoned for 20 years, and it is surrounded by residential areas. Once leaked, the radioactive source is equivalent to a small atomic bomb. In order to find a safe destination for this radioactive source, experts from the province will rush to Nanyang for disposal! " After receiving readers' feedback, yesterday (25th) morning, the reporter rushed to Fangcheng County and interviewed environmental protection personnel at the provincial, city and county levels and provincial capital experts on the hazardous disposal of radioactive sources.
Warning: For 20 years, radioactive sources have been "dangerously lying" in residential areas.
At 3 pm yesterday, the reporter came to Fangcheng County Sericulture Science and Technology Guidance Station (referred to as Silkworm Station) with Du Lianhai, deputy stationmaster of Radiation Station of Provincial Environmental Protection Bureau, and saw an old-fashioned bungalow with an area of 80 square meters. After entering the bungalow door, turn right along the secret passage, and a large spindle-shaped tin can with a height of more than one person looms large. Feng chunying, the stationmaster of silkworm station, pointed to the big tin can and said, here it is!
From the appearance, this big tin can is unremarkable, but there is a radioactive source only the size of peanuts-radium beryllium neutron source, which is very powerful. The staff of Fangcheng County Environmental Protection Bureau said that this abandoned radioactive source was discovered in the special action of "checking radioactive sources to reassure the people" carried out nationwide in the second half of this year. Originally used for radiation breeding, 1973 was settled in Fangcheng county, and 1983 was abandoned. It has been abandoned for 20 years.
The staff of Fangcheng County Environmental Protection Bureau said that in order to find a "home" for the neutron source, the Environmental Protection Bureau once posted information to 1000 websites on the Internet, seeking users, and advertised in Jiangsu and Zhejiang provinces where there are many silkworms, promising that the neutron source can be given to them for free as long as there are formal procedures, but no one is willing to do so for free. No choice but to call the provincial environmental protection bureau for help.
Power: equivalent to a small atomic bomb.
According to the person in charge of the Silkworm Station, the half-life of the neutron source is 1650 years, that is to say, its energy will decay by half after 1650 years, and it is unlikely that the energy will disappear completely. He has consulted environmental experts, who say that once the neutron source is exposed, people and animals within 500 meters of Fiona Fang will be harmed by radiation. It is as lethal to people and animals as a small atomic bomb.
Experts told reporters that the penetration of neutron rays is particularly strong, which is several times that of other rays. If the human body is exposed to radiation for a long time, the exposed person will have hair loss, dizziness, loss of appetite and other abnormal phenomena, which can lead to death in severe cases. What's more, neutron rays have the ability of secondary radiation. If an element contained in the human body is irradiated by strong neutron rays, it may be activated, and the human body will also carry neutron radiation. Anyone who comes into contact with this person may be irradiated by radioactive sources. However, this rarely happens.
Detection: the bottom of the protective tank is "in a hurry"
Yesterday at 3: 00 pm 15, several experts used a special detector to inspect the periphery of the big tin can. When the detector is aimed at the tank bottom, the detector gives an alarm, indicating that the tank bottom protection effect is not good.
After the test, the experts immediately diagnosed and treated the "condition". Because paraffin can effectively block neutron rays, the staff went to buy large pieces of paraffin. At the same time, two workers wearing special protective clothing entered the special warehouse and fixed the "can cover" on the big iron can with iron wires and other things to prevent it from leaving the can body during the consignment.
10 minutes later, I bought paraffin, and the staff sawed the paraffin into small pieces with a saw, and then put them into the bottom of the big tin can. The staff said that because the protective part is at the bottom of the tank, it is very difficult to protect and dispose of it. Paraffin can only be put at the bottom of the tank first, then melted with a gasoline blowtorch, and then coated on the bottom of the tank.
Disposal: today's neutron source "goes home"
Du Lianhai told reporters that he inspected the special warehouse for storing large tin cans and found that it was difficult to take them out. First of all, the pulley at the bottom of the jar has rusted and died, making it difficult to move. Second, the sealed neutron source protection tank weighs about 2 tons. When loading large cans on special transport vehicles, cranes must be used. These tasks can only be completed before 2 pm on the 26th. Therefore, the shipment scheduled for the 25th can only be delayed by one day.
Director Du said that the neutron source in this big tin can is the second largest radioactive source among the abandoned radioactive sources found in our province at present, which belongs to the second category, that is, high-risk sources. The big tin can will be delivered to the provincial radioactive source storage warehouse in Zhongmou before 7 o'clock tonight, which is the safe storage "home" of all kinds of abandoned radioactive sources in our province.
Reflection: Saving radioactive sources requires special funds.
According to the staff of the environmental protection department, starting from May this year, the State Environmental Protection Administration, the Ministry of Public Security and the Ministry of Health announced a joint campaign to "check radioactive sources to reassure the people", and it is planned to spend eight months checking uncontrolled radioactive sources. Because radioactive sources are widely used in industrial and agricultural production, military and medical institutions, their management is also chaotic. According to experts' estimation, the total number of radioactive sources in China should be more than 80,000, of which at least 2,000 radioactive sources are completely out of control and lost in society.
Du Lianhai said that foreign radioactive source manufacturers are responsible for recycling waste sources, while domestic manufacturers recycle very little and can only rely on government investment to control it. In this case, the state should have special funds for the recovery and disposal of radioactive sources. For example, some units need to pay a certain disposal fee when purchasing radioactive sources. When radioactive sources are abandoned in the future, the state can use special funds for disposal. This is the need of the whole society to control radiation pollution sources.