Release date: 2010-05-24
Japanese researchers reported on the 19th that they successfully used the mineral water bottle material to create the core component scintillator of the radiation detection equipment, and achieved high sensitivity. The results of this research help reduce the cost of cutting-edge medical equipment.
The Japan Institute of Radiation Medicine reported on the 19th in the electronic version of the Journal of the Royal Society that when a radiation detection device is used for detection, its core component scintillator emits light after being irradiated with radiation, and then passes a sensor called a photomultiplier tube. Capture and measure. During the experiment, the researchers at the institute tried to measure the radiation by using various common plastic materials around them as scintillators. As a result, it was found that the presence of radiation could be detected with a small amount of mineral water bottles. If the polyethylene terephthalate, the main component of the water bottle, is made into a 5 mm thick plate, it can achieve extremely high sensitivity.
Researcher Nakamura said that although plastic materials are currently used to make scintillators, special substances need to be added, and it is considered unsuitable for manufacturing medical high-precision measuring equipment. At present, the scintillator of medical positron emission tomography (PET) equipment is made of metal material, and although it is only the size of a thumb, its cost is as high as 1 million yen (about 10,900 US dollars), thereby improving the whole The cost of the equipment. The plastics for making mineral water bottles are inexpensive, so it is expected to reduce the cost of various medical radiation detecting equipment such as PET.
(Source: Medicare)
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