Ka dib markii Guddiga Tamarta Aatoomiga (AEC) la aasaasay sanadkii 1947 oo ah hay'ad rayid ah oo gacanta ku haysa arrimaha cilmi baarista nukliyeerka iyo hubka, Oppenheimer waxaa loo magacaabay Guddoomiyaha Guddiga La-talinta Guud (GAC). Xilkan wuxuu ka taliyey arrimo badan oo la xiriira nukliyeerka, oo ay ku jiraan maalgelinta mashruuca, dhismaha shaybaarka iyo xitaa siyaasadda caalamiga ah. In kasta oo talada GAC aan had iyo jeer la tixgelin.
Ciidamo fara badan oo ka kooban hubka fission-ka