Sentences with phrase «caesium isotopes»
Storm dates were determined by matching key markers in the sediment samples with known events; rye pollen started to appear after Europeans colonized the region, for example, and exotic caesium isotopes settled in the pond following nuclear weapons tests.
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Radioactive caesium isotopes are being removed from the water by an advanced liquid - processing system built after the accident, but a facility for removing strontium isotopes is not yet ready.
Not exact matches
This is fissile, and splits into lighter fragments, including isotopes such as caesium - 137, with a half - life of 30 years, and strontium - 90, with a 25 - year half - life.
«Leakage is occurring and isotopes such as caesium - 137 accumulate in the food chain.»
Opponents of the tests have warned that potentially harmful radioisotopes, especially caesium - 137, strontium - 90 and plutonium isotopes, will leach from rocks fractured by the blasts.
Most atomic clocks use atoms of the isotope caesium - 133.