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Hace 10 horas · I believe that even three decades after the Chernobyl disaster, the situation hasn't changed enough to allow for safe living and agricultural activities in these territories. Yes, the radiation levels of cesium-137 and strontium-90, which have a half-life of about 30 years, have indeed decreased.
Hace 2 días · This is a list of radioactive nuclides (sometimes also called isotopes ), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds. [1]
Hace 1 día · Many of the processes designed to remove fission products in reprocessing plants aim at cationic species such as caesium (e.g., caesium-137) and strontium (e.g., strontium-90). Hence the pertechnetate escapes through those processes. Current disposal options favor burial in continental, geologically stable rock.
Still has the strontium-90 check source in the probe, no idea how hot it is since I don't have a decekt beta-detector. I have not been able to get it to work tho. Made some AA adapters and also tried cells from a 4.5V 3r12 battery.
Hace 1 día · More than 5% of strontium-90 was released during the Chernobyl explosion. Although that percentage might not seem very high, strontium-90 is the most dangerous component of the radioactive fallout from a nuclear explosion. Vasilii, 15, is one of the many children in southern Belarus who suffer from severe birth defects. Sean Gallup/Getty Images
Hace 4 días · A mixture of molten metal, sand, concrete and fuel particles spread in the reactor premises. As a result of the disaster, there was a release of radioactive substances, in particular isotopes of uranium, plutonium, iodine-131, cesium-134, cesium-137, strontium-90.
Hace 1 día · For strontium, the purification was achieved using the protocol adapted from Copeland et al. 84. The enamel was dissolved in 2 ml of HNO 3 , evaporated and subsequently re-dissolved in 3 M HNO 3 .
