Ku-a kufundwa ikholomu yamanzi NgeNational Accelerator Center (CNA), kutholakale inani le-uranium-236 eleqa ngesilinganiso esingu-2,5 sezinye izifunda ezifanayo ebangeni elifanayo.
Lolu cwaningo lushicilelwe ephephabhukwini Isayensi Yendawo Yonke futhi ihlaziye amazinga ale isotope enemisebe esiteshini se-DYFAMED oceanographic esiseLigurian Sea, isifunda soLwandle iMedithera esiphakathi koMfula i-Riviera nesiqhingi saseCorsica.
Ucwaningo luzama ukuthola i- imithombo yendawo neyesifunda ye-uranium-236 ezithinte amanzi neziduli zale ndawo, kanye nezinqubo zemvelo ebezizothinteka yinto eyaziwa ngokuthi yi-fallout yomhlaba, leyo enemisebe ekhishwe ama-aerosol ngesikhathi sokuhlolwa komkhathi phakathi kwenkulungwane yama-40s nama-80s.
Sibhekene ne-isotope enemisebe ene-apisikhathi sokuphila seminyaka eyizigidi ezingama-23,4 nokuthi iyi-radioisotope yokwenziwa, okuyiyo engatholakali ngokwemvelo eMhlabeni futhi eyenziwe ngalezi zindlela zenuzi. Lokhu kuvame ukutholakala ekukhishweni kwama-reactors enuzi, kungaba ngengozi noma ngokulawulwa.
Lolu cwaningo ngolokuqala ukukhombisa idatha ye-uranium-236 oLwandle iMedithera kanye neyokuqala etholwe ngohlelo lwe-CNA 1 MV AMS. Okugcina kuqoqwa yilo cwaningo ukuthi kuleyo ndawo kunemithombo eyengeziwe ye-isotope nokuthi phakathi kwayo, ukukhishwa okulawulwayo okuvela esikhungweni sokuvuselela uphethiloli senuzi iMarcoule eFrance kungaba yimbangela; ingozi yaseChernobyl; noma emisebenzini etholakala ezitshalweni zenuzi eziseMedithera.
Noma kunjalo badinga izifundo eziningi ukuthola umsuka we-uranium-236 eyeqile.