{"id":27564,"date":"2020-09-02T14:12:35","date_gmt":"2020-09-02T14:12:35","guid":{"rendered":"http:\/\/sitepourvtc.com\/?page_id=27564"},"modified":"2023-08-03T18:16:20","modified_gmt":"2023-08-03T18:16:20","slug":"high-level-waste-hlw","status":"publish","type":"page","link":"https:\/\/sitepourvtc.com\/nuclear-power-plant\/radioactive-waste\/high-level-waste-hlw\/","title":{"rendered":"High-level Waste – HLW"},"content":{"rendered":"
High-level waste<\/strong> is sufficiently radioactive for its decay heat<\/a> (>2kW\/m3<\/sup>) to increase its temperature and the temperature of its surroundings significantly. As a result, high-level waste requires cooling and sufficient shielding<\/strong>. Most of the heat, at least after short-lived nuclides have decayed, is from the medium-lived fission products cesium-137 and strontium-90, which have half-lives on the order of 30 years.<\/p>\n