being necessary for fallout contributions. From comparison of fallout contours for this cperation (Reference 24), the initial gamma detectors obviously were placed far enough from ground zero, if they were in either the upwind or cross wind direction, for the fallout effect to be negligi- ble. Large limonite blocks were placed in the towers for Shots 2 and 7 in such a position es to attenuate the radiation east of the tower. Tne gamma line for Shot 2 was east, and the gamma lines for Shot 7 were east and south. Only the south line data are reported for Shot 7. Neutron corrections were made in Reference 36 for the gamma data obtained for Shot 1G. The neutron correction factors used in Reference 36 are erroneous and the neutron fluxes used are suspect. SCEL was one of the groups which reversed the order of Snots 5 and 6, and Shots 8 and 10. distances as radial distance from GZ, not as slant range. SCEL reported VS (v {s<kD) LASL obtained their gamma measurements from five film types The films covered the in th2 AW holder attached to angle-iron staxes. range from 0.1 to 2000 r. No azimuths are given for Shots 5, 6, and il, ari no mention is made of fallout affecting the detectors. ‘sriation of gtmma exposure with neight above the ground, frem cne-half “uot to 10 feet, was measured at Shot 10; the variation did not exceed +5 percent for the slant distances of 2000 to 3000 yards. (U) The garma data obtained by the two projects agreed fairly well for Shots 6 and 10. The LASL data were slightly higher for Shot 5. (0) S=S>neutron measurements were made by LASL (Reference 37) for Shots 1, 2, 3, 5, 6, 7, and 10, and by NRL (Reference 38) for Shots 8, 9, and 10. The neutron data for Shot 10 were taken from NRL data. Unfortunately, soze of the LASL neutron data were taken for diagnostic measurements and were urmusable for this report. are available for Snots &, 9, 10 (Keference 3yJ. first attempt to objective of the to obtain ratios shelters, it was measure project tetween decided Plutonium-neutron aata Since this was the neutron flux with plutonium detectors and the which obtained the plutonium-neutron data was neutron flux inside and outside Civil Defense not to use these data. (U) The SCEL gamma data and the neutron corrections, where avain able Curves of the SCEL ganma-a ose- are presented in Tables 3.49 thru 3.57. times-slart-distance-squared versus slant-distance are presented in Figures 3.30 thru 3.38. The LASL gamma data and neutron-flux data are given in Tables 3.58 thru 3.61. The LASL gamma data for Shot 11 timesslant-range-Saquarei versus slant-range are cresented in Figure 3.39. 33