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cesium 137

American  

noun

Chemistry.
  1. the radioactive cesium isotope with mass number 137 and a half-life of 33 years: used for gamma irradiation of certain foods and for radiation therapy.


Example Sentences

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One removal-and-replacement success strategy involves swapping blood irradiators that use cesium 137 for those that rely on x-ray technology.

From Scientific American ● Mar. 11, 2022

The oceanic study estimates 27,000 terabecquerels of radioactive cesium 137 leaked into the sea from the Fukushima plant, north of Tokyo.

From BusinessWeek ● Oct. 31, 2011

Other measures are being taken to clean up the remaining radioactive matter, mainly cesium 137, which can last for generations.

From New York Times ● May 2, 2011

Other radioactive material, such as cesium 137 with a half-life of roughly 30 years, dissolves like salt in water, traveling into groundwater supplies and even .

From Scientific American ● Apr. 29, 2011

In a reactor, many of the uranium 235 nuclei split apart, transforming into radioactive isotopes such as iodine 131 and cesium 137.

From "Meltdown" by Deirdre Langeland

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