jacket, and placed between two 1/2-inch wood blocks which were heli together oy an aluminum box to aoproximate the more e r ca Recover since no local fallou iat ot q of fu i cl Pa 5 to 6 hours after detonation; but, j Fh} were mot reported. Two lines, 9O° avart, were Road ran due south and Access Rond ran due west. re) ab thooty The film badge was attached to angle-iron stakes x recovery time was not critical. (U) Thermal-neutron measurements were made by LASL with Zoli detecter (Reference 12). No fast-neutron measurements were mais. The sultur- neutron flux for Shots Able and Fox might have been estimated if tre goldneutron data from these shots had been found to be comearadle to tne golaneutron data from the similar Shots Tumbler II and Buster Dog. However, Since the gold-neutron data agreed only within a factor of two, estimation of the sulfur-neutron flux by this method would be inatcurate (U) The uncorrected gamma data are presented in Tables 3.3 thru 3.22, and the uncorrected gamma-dose-times-slant-distance-sguarei versus slant distance are shown in Figures 3.4 thru 3.13. 3.3 OPERATION GREENHOUSE (U) Operation Greenhouse consisted of four tower shots detonated at the PPG during April and May 1951. A summary of the shot inforrztiocn is presented in Table 3.13, are given in Table 3.14. and the meteorological conditions at snot tims (U) The gamm2 measurements, which consisted of the use of films in N3S holders, were obtained by the NBS (Reference 22). Four fii used to cover the range of 0.1 to 80,000 r, but one -- tre Eastr positive -- was used as a performance check of the DuPort 595. film holder consists of thin layers of tin ard lead to provice r energy independence,and a thick layer of bakelite to provide ele equilibrium. The film badge was attached to a 24-inch pipe. Since n further information concerning the pipe is given, the pice is assumed to be of steel and 1/8-inch thick. No azimuth was given from ground zero. No corrections for the effect of fallout need to ve made since the fallout was negligible (Reference 24). (U) Neutron-flux measurements were made by LASL, with gold and sulfur detectors (Reference 25). The fast-neutron flux has been agzin calculated from the sulfur data. 29