rd . om 217 ' oy! WER. ) 0 Project 21.2 = Sample Collection - R, Batsel The Air Poroe Special Weapons Center eupplied five F-846 and one B57 to take samples om this device. The B-57 acting also as contro] Plane, Airereft 2 Time after shot -0 = 1,15 Alt. Collected 40 ~ 41,5 PFission Cae 051 1,10 = 1,40 95-4 0,€2 x 10°5 043 038 1,20 = 1,30 1,50 - 2,20 30 - 32 7-9 1,8 x 1015 0,78 x 10° 054 502 Pilot Radiation 1,50 ~ 2,10 +97 1.2 x 102° 2,15 - 2.4.0 9 - 42 1.¢€ x 1015 4 The cloud onGE20) topped at 42,000 feet, The base ef the cloud was obscured by clout cever, but was at least down to 26,000 feet. The sample size was mel) but was sufficient since the device wes @ success. If the device hed been a failure more fissions vould have been needed, The sezples vere amall due to the unexpecte! height of the cloud. The success of thie sampling was tue to the cooperation and interest shovn by the Air Perce personnel. BEST AVAILASLE COPY Al Gh