Sentences with phrase «highest caesium»

Others aren't so sure: the two highest caesium hotspots also carried 45 MBq / m2 and 57 MBq / m2, respectively, of iodine - 131, and others also had high levels of iodine - 131.

Not exact matches

The second is currently defined by caesium atomic clocks, but optical clocks promise higher precision because their atoms oscillate at the frequencies of light rather than in the microwave band, so they can slice time into smaller intervals.

They exploit the fact that an atom of caesium, or some other element, emits visible light or microwaves when one of its electrons drops from a high energy state to a lower one.

Buesseler says that during his own sampling survey in waters 30 to 600 kilometres from Fukushima in June 2011, three months after the meltdown, the highest levels he found were 3 Bq of caesium - 137 per litre of seawater.