02/04-2005, bellona.org: Radioisotope Thermoelectric Generators Citat: "...Bellona has warned that radioactive incidents involving these RTGs are possible...According to IAEA classification, RTGs are 1 class meaning they are among the strongest radiation emmiters. 8...Table 1. Specifications of the RHS-90...Concentration of strontium 90...1,500 TBq, or 40,000 curies...Table 5. Accidents involving RTGs in the USSR, Russia and the Commonwealth of Independent States..."