{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["334(12)"],"submitter":["Joyce MJ"],"pubmed_abstract":["Measurements of refractory and volatile components in soils from Northern England confirm <sup>244</sup>Pu/<sup>239</sup>Pu consistent with the global average but refractory <sup>240</sup>Pu/<sup>239</sup>Pu significantly higher but consistent with Chernobyl fallout, i.e., 0.390 ± 0.006. Refractory formation suggests temperatures > 3000°C, consistent with atmospheric injection by nuclear-driven explosions rather than  by steam or hydrogen. Volatile <sup>240</sup>Pu/<sup>239</sup>Pu is consistent with the global average, 0.181 ± 0.002, and hence lower-temperature formation in the chemical explosions and subsequent fire. This hypothesis is supported by <sup>239</sup>Pu fission and capture cross-section enhancement due to the S-wave resonance at ~ 0.3 eV. A further calibration with a <sup>240</sup>Pu standard is recommended to substantiate these observations.<h4>Supplementary information</h4>The online version contains supplementary material available at 10.1007/s10967-025-10541-0."],"journal":["Journal of radioanalytical and nuclear chemistry"],"pagination":["9287-9299"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12827445"],"repository":["biostudies-literature"],"pubmed_title":["Plutonium signatures in refractory fallout support a Chernobyl nuclear jet hypothesis."],"pmcid":["PMC12827445"],"pubmed_authors":["Gautschi P","Joyce MJ","Collins-Price P","Livens F","Wilbraham R","Warwick P","Gaca P","Semple KT","Boxall C","Madina A","Christl M"],"additional_accession":[]},"is_claimable":false,"name":"Plutonium signatures in refractory fallout support a Chernobyl nuclear jet hypothesis.","description":"Measurements of refractory and volatile components in soils from Northern England confirm <sup>244</sup>Pu/<sup>239</sup>Pu consistent with the global average but refractory <sup>240</sup>Pu/<sup>239</sup>Pu significantly higher but consistent with Chernobyl fallout, i.e., 0.390 ± 0.006. Refractory formation suggests temperatures > 3000°C, consistent with atmospheric injection by nuclear-driven explosions rather than  by steam or hydrogen. Volatile <sup>240</sup>Pu/<sup>239</sup>Pu is consistent with the global average, 0.181 ± 0.002, and hence lower-temperature formation in the chemical explosions and subsequent fire. This hypothesis is supported by <sup>239</sup>Pu fission and capture cross-section enhancement due to the S-wave resonance at ~ 0.3 eV. A further calibration with a <sup>240</sup>Pu standard is recommended to substantiate these observations.<h4>Supplementary information</h4>The online version contains supplementary material available at 10.1007/s10967-025-10541-0.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025","modification":"2026-06-06T22:29:08.238Z","creation":"2026-06-06T03:10:38.966Z"},"accession":"S-EPMC12827445","cross_references":{"pubmed":["41586250"],"doi":["10.1007/s10967-025-10541-0"]}}