Firstly because there's quite a lot of naturally occurring uranium, thorium and radium in california, secondly because beaches are one of the places where geological reworking can happen (eg filtering by density), thirdly because black magnetic sand on those beaches killed one of my remote controlled FPV planes, and magnetic black sand is well known for containing elements like thorium, and lastly, some folks with a energy sensitive radiation meter have claimed to visit this beach and showed that the actual radiation in this instant was coming from thorium.
Seeing as there is essentially no fission decay products in nature, you can detect incredibly small quantities of them. No fission decay products were found.
Source
No comments:
Post a Comment