The shapes of the curves are Similar and the nor«malized Shct Tewa curve is lower, as might be expected from the higher fallout rates from a water-reef shot as compared to an air burst. This agreement is not of great significance since these rockets went through areas near the edges of the clouds. However, the single set of data 100 Ff 90 -Cherokee 80 Concentration, mcuries/m> Round §A , 75° QE Launch Tewa Round 3, 75° QE Launch | 70 | t mn Tewa Normalized to Cherokee 60 }——--——~ — 50 40 390 20 10 25° Time after Launching, Seconds 35 40 Figure 4.8 Comparison of similar trajectories during Shots Cherokee and Tewa. obtained from Shot Tewa was not inconsistent with data from Shot Cherokee. Two of the rockets that were fired through the Shot Navajo stem yielded data. Rocket 1A yielded a peak concentration of 9.3 mc/m? while Rocket 2A indicated a peak voncentration of 12.6 mc/m’, On the basis of the 15-minute measurements made in the cloud, it is estimated that these concentrations would be about 10 percent of the peak concentration in the main body of the cloud at the same time. These rockets passed through the stem at an altitude of about 25,000 feet. Having constructed the profiles of Figures 4.2 through 4.6, it 1s possible to obtain an estimate® of the total number of photons per second at the time for which the profile is drawn. 34 This estie