In his role as Controller of Atomic Energy , Morgan was present for Operation Hurricane , the first British atomic weapons tests at the Montebello Islands in October 1952 . His position was gradually reduced to a figurehead , with his authority largely supplanted by the Atomic Energy Board , which was chaired by Lord Cherwell , and was abolished in 1954 with the creation of the United Kingdom Atomic Energy Authority . Morgan then became Controller of Nuclear Weapons . Nonetheless , he was still an important figure in the push for higher-yield weapons . He pressed for the testing of the Green Bamboo boosted fission weapon during Operation Mosaic . This resulted in Mosaic becoming a two-test series , although Green Bamboo could not be made available in time . A Green Bamboo assembly was subsequently taken to Christmas Island for Operation Grapple , but was deleted from the test series to save money . Morgan was also instrumental in putting the case for the development of the H-bomb on operational grounds
Operation Hurricane
Operation Hurricane
Frederick E. Morgan