-31At 5:00 Pim ‘this session was adjourned, “FIFTH SESSION ; (april 2, 1954) ~ _ The Committee assembled at 9:30 a.m., but, since the Chairman had to be absent for a time, did not formally convene until he returned at 10: 05 a.m. Gen, Fields and Dr. Fine also entered at this time, All members of the Committee except Dr. Libby were present. were pre sent. TheSecretary and Mr. Tomes ‘* Gen, Fields announced that ithad been“definitely decided to elinina Castle Tests the stockpile, ee ane : completely, ‘both from the tests and from the one without tritium, would be added to the test series. _° He then commented on the test difficulties-in“connection. with weathe: Fall—out scheduling, and the contamination of fixed inetgations. The barge technique reduced local fall-out, althoughEc given heavy,rfali~out sory in the crea Quantitative comparison of ke fall-out fron ath tha: er fron SEas,not yet possible. v out fron Ne He said it was estimated that the fell- a9 i corresponded to at least 3 megatons. eRe 4 DoE ARCHIVE VES _Gen, Fields mentioned an interesting observation in connection with In a photograph taken about 10(?) minutes after the explosion heavy particles could be seen falling out of the dome from above the 40,000 ft level, 50-75 miles. They effectively enlarged the stem to a diameter of The first fall-out on Rongelap could not have been from the stem; the later, heavier deposition was due to the stem, ‘Conversation about the tests continued for a while. Gen. Fields indicated that he was convinced that these large ‘weapons should not be Te AE