a che ae e+ ene Eninetok and the target area, Pick-up of drone aircraft at Eniwetok was completed by H ~ 2 hours and by H hour all aircraft were on their staticns, Radiological safety procedure aboard aircraft consisted of the following: (2) H ~ 30 minutes, Instruments turned on. (2) {3} kh) £33 6) H~ 5 minutes. Cabin heaters shut off and all crew members on 100% oxygen. H - 10 seconds, After detonation, All crews adjust dark goggles. Remove goggles, observe burst phenanena ard monitor watch instruments. After leaving area. After landing. — Monitor interior of aircraft. Monitor crew and exterior of aircraft. The rehearsal was successful in general. It was found however that ten seconds was too long a time for the pilot to be completely "in the dark" ‘ and permission was granted for the pilots, on test days, to cut a small Kole in the one lens of the goggles. The period between Peter X~ray Day and X-ray Day was devoted to preparation for X-ray Day, Complete individual mission flimsies were prepared for each monitor to use on the first test. 4 B ANSAS; “ SLA contamination center at. Kwajalein was completed and adequate stocks of clothing obtained. > a completed, By 13 April pr-parations for X-ray Day were complete and the o unit stood by awaiting implementation of the operation. X~RAY TEST This test was carried out in exactly the same manner and on the ws same time schedule as the rehearsal, Installation of drone aircraft ~ ae with two exceptions; the B-17 spotter aircraft which had returned to a a ¥ « Kwajalein with a defective weather reconnaissance aircraft and the -90- nese : i ! i 4 - | t } 1 Aircraft were on stations at H hour and prepared for the detonations 5 ile oN mar| a ™ film badges was completed at Eniwetok by 2300 hours of X-ray minus ones . Bote ~ The high altitude instrument calibration project was + Ves opSy. an =~ es The personnel de-