cesium 137

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Words related to cesium 137

a radioactive isotope of cesium used in radiation therapy

References in periodicals archive ?
According to TEPCO, radioactive iodine-131 amounting to 220 becquerels per cubic centimeter, cesium-134 of 88 becquerels and cesium-137 of 93 becquerels were detected in the pool water.
Taiwan has set legal limits of 300 becquerels per kilogram for iodine-131 and 370 becquerels for cesium-134 and cesium-137.
Although the cause of cesium-137 contamination--aboveground nuclear testing--has been reduced, large land areas are still polluted with radiocesium," Kochian says.
Past activities include the manufacturing of self-illuminated watches and instrument dials; smoke detectors; exit signs and other products containing radioactive materials (such as radium-226, strontium-90, cesium-137, and tritium).
According to the Japan Times, a research team led by the University of Tokyo has concluded that cesium-137 gets easily absorbed in clayish soil and concentrates in seabed depressions.
6 billion becquerels of cesium-137 per liter, while 750 million becquerels of other radioactive substances were detected, according to TEPCO.
It came mostly in the form of iodine-131, cesium-134 and cesium-137, the primary radioisotopes released from the reactors, reported Ken Buesseler, a marine chemist at Woods Hole Oceanographic Institution.
Although radiation from iodine-131 falls by half in just eight days, the half-life of cesium-137 is 30 years; for plutonium -239 it's 24,100 years.
ySTANBUL (CyHAN)- A Trabzon hospital has not returned medical equipment containing the radioactive isotope Cesium-137 (Cs-137) to the Turkish Atomic Energy Agency (TAEK) after taking it out of operation, it was accidentally discovered in the course of a building addition project on the hospital's grounds.
The partial meltdown of Fukushima, in contrast, released only five isotopes measurable by the Seattle team: iodine-131, iodine-132, tellurium-132, cesium-134 and cesium-137.
In the aftermath of the Chernobyl nuclear accident in 1986, an agricultural area within a 30 km radius of the reactor was heavily contaminated with uranium, lead, cesium-137, and strontium-90.
According to South Korean News Agency, Yonhap, the Korea Institute of Nuclear Safety (KINS) said detailed analysis of nuclides captured at 12 radiation detection centers across the country showed the existence of iodine-131, cesium-134 and cesium-137 in the atmosphere.
His report looks at 28 radioactive contaminants, from cesium-137 to uranium-239, and compares the radiation that would be left at the site under the DOE cleanup vs.
Typical Radioactivity Amounts Practice Typical Radioisotopes (Curies) Radioisotope thermoelectric generators Strontium-90 20,000 Plutonium-238 280 Sterilization & food irradiators Cobalt-60 4,000,000 Cesium-137 3,000,000 Self-contained & blood irradiators Cobalt-60 2,400-25,000 Cesium-137 7,000-15,000 Single-beam teletherapy Cobalt-60 4,000 Cesium-137 500 Multibeam teletherapy Cobalt-60 7,000 Industrial radiography Cobalt-60 60 Iridium-192 100 Calibration Cobalt-60 20 Cesium-137 60 Americium-241 10 High and medium dose rate brachytherapy Cobalt-60 10 Cesium-137 3 Iridium-192 6 Well logging Cesium-137 2 Americium-241/beryllium 20 Californium-252 0.
According to the health ministry, since the accident at Chernobyl, the government set the maximum level of cesium 134 and cesium-137 radiation at 370 becquerels per kilogram for food products imported from the former Soviet Union and Europe.