Project No: 2.8b - Aircraft Fallout Sampling 4, Photographic coverage of B-57 operations will be supplied by a handheld motion picture camera in the control aircraft, to allow qualitative examination of thé wind-shear cloud layers penetrated. 5. Gaseous samples will be analyzed on site. Particulate samples will be returned to the ZI for analysis. Each particulate sample will be analyzed for approximately 10 selected isotopes. Analysis and results of this Project will be closely correlated with those of Project 2.8a. Special Requirements: 9 1. Two surface burst orama one land-based and one barge-based. 2. Support of a fallout computing group for height line prediction until H/20 hours. The lines should be recalculated as many times within the twenty hour period as is feasible. 3. Shear winds in the B-57 operating altitudes must be available to allow both high-altitude discrimination and height line separation. This is a mandatory condition for firing the land-based shot and is desirable for the barge-based shot. 4, No shot at either atoll can precede or succeed the land-based shot by less than 48 hours, to preclude sampling of mixed debris and to allow support requirements to be met. 5. Aircraft support from the Air Weather Service (B-50's) and AFSWC (B-57's) as outlined above. Availability of B-57 aircraft must be coordinated with, and is subordinate to, the diagnostic sampling program. 6. If present AEC studies demonstrate feasibility, incorporation of a suitable tracer in the land-based device, to allow correlation between the close-in measurements obtained by this Project and the several continuing world-wide fallout programs. Construction: None Funding: — Total Estimated R&D Cost: AFSWP . 0 AEC $306 , 500 TOTAL $306 , 500