Ruthenium 106 in 2017

Major nuclear release of Ruthenium 106 in 2017
https://www.pnas.org/content/pnas/early/2019/07/25/1907571116.full.pdf

https://www.newscientist.com/article/2211511-gigantic-mysterious-radiation-leak-traced-to-facility-in-russia/?utm_campaign=the_download.unpaid.engagement&utm_source=hs_email&utm_medium=email&utm_content=75152997&_hsenc=p2ANqtz-_32YZsUIuJidf_ODmGwAt_Xqjrpqq4_ai5FY_oVWVt933li4KrOmejAQUrBn-m-wzUrXdcE_2Ui2-DbVa5ESazXFj-6m34ni0NmnsHxbH9YPtAMPg&_hsmi=75152997

https://www.irsn.fr/EN/newsroom/News/Documents/IRSN_Information-Report_Ruthenium-106-in-europe_20171109.pdf