{"id":4408,"date":"2022-11-30T14:04:13","date_gmt":"2022-11-30T13:04:13","guid":{"rendered":"https:\/\/us.edu.pl\/instytut\/ifiz\/?post_type=event&p=4408"},"modified":"2022-11-30T14:05:59","modified_gmt":"2022-11-30T13:05:59","slug":"jerzy-w-mietelski-the-oklo-natural-reactor-in-gabon-50-years-from-the-discovery","status":"publish","type":"event","link":"https:\/\/us.edu.pl\/instytut\/ifiz\/event\/jerzy-w-mietelski-the-oklo-natural-reactor-in-gabon-50-years-from-the-discovery\/","title":{"rendered":"Seminarium: The Oklo natural reactor in Gabon: 50 years from the discovery – Jerzy W. Mietelski"},"content":{"rendered":"

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Jerzy W. Mietelski<\/strong><\/p>\n

Instytut Fizyki J\u0105drowej im. Henryka Niewodnicza\u0144skiego\u00a0 Polskiej Akademii Nauk w Krakowie<\/em><\/p>\n

Streszczenie<\/strong><\/p>\n

Latem 1972 roku rutynowa pr\u00f3bka heksafluorku uranu analizowana w Pierrelatte (Francja) wykaza\u0142a niewielkie zubo\u017cenie U-235. Podj\u0119te badania wkr\u00f3tce doprowadzi\u0142y do odkrycia naturalnego reaktora j\u0105drowego, kt\u00f3ry dzia\u0142a\u0142 w z\u0142o\u017cu uranu w Oklo (Gabon) oko\u0142o 2 miliardy lat temu. Dalsze badania prowadzone na szerok\u0105 skal\u0119 zaowocowa\u0142y znalezieniem kolejnych 16 reaktor\u00f3w w dw\u00f3ch lokalizacjach w Gabonie w promieniu 30 km. Opr\u00f3cz znalezienia wielu szczeg\u00f3\u0142\u00f3w ich dzia\u0142ania, badania te by\u0142y wyj\u0105tkow\u0105 okazj\u0105 do uzyskania wiedzy na temat zachowania si\u0119 odpad\u00f3w j\u0105drowych w trakcie tak d\u0142ugiej skali czasowej ich przechowywania. Badania te przynios\u0142y r\u00f3wnie\u017c weryfikacj\u0119 niekt\u00f3rych modeli dotycz\u0105cych mo\u017cliwych zmian w czasie podstawowych sta\u0142ych fizycznych. Podczas seminarium zaprezentowany b\u0119dzie zarys przegl\u0105du tych wszystkich aspekt\u00f3w bada\u0144 reaktora w Oklo.<\/p>\n

Abstract<\/strong><\/p>\n

In summer of 1972 the routine sample of uranium hexafluoride analyzed in Pierrelatte (France) revealed small depletion of U-235. Undertaken investigation soon lead to discovery of natural nuclear reactor which operated in uranium deposit in Oklo (Gabon) about 2 billion years ago. The further wide scale studies resulted in finding next 16 reactors in two locations in Gabon within 30 km distance. Besides finding many details of their operation, this studies were unique opportunity for getting knowledge of the nuclear wastes behavior in course of\u00a0 such long time scale of storing. This studies brought also a verification of some models regarding a possible changes in time of fundamental physical constants. A general overview of all above\u00a0 will be presented during the seminar.<\/p>\n

termin: wtorek, 06.12.2022, godz. 10:30
\nmiejsce: SMCEBI, sala P\/1\/13<\/p>\n<\/div>\r\n <\/div>\r\n <\/div>[\/vc_column][\/vc_row]<\/p>","protected":false},"excerpt":{"rendered":"

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