Sentences with phrase «ruthenium isotopes»
They compared the abundance of ruthenium isotopes in these meteorites with the abundance in Earth's mantle.
https://www.newscientist.com/ Not exact matches
For 2 weeks in the fall of 2017, traces of the isotope ruthenium - 106 wafted across Europe.
What's more, the ratio of ruthenium - 106 to the faster - decaying isotope ruthenium - 103, detected in smaller amounts last autumn, reveals that the fuel must have been removed from its reactor only a year or two earlier.
He notes that the amount of ruthenium - 106 that the French team estimates was emitted — between 1 gram and 4 grams — matches the 30 grams of cerium - 144 required for SOX, given that spent fuel contains the two isotopes in a ratio of about one to 14.
For 2 weeks in September and October last year, traces of the humanmade isotope ruthenium - 106 wafted across Europe, triggering detectors from Norway to Greece and Ukraine to Switzerland.