ime interval from 0 to 20 seconds. side Tota the Emre tt Gi Be and from film side of the Ermett device (1/2 Emmett) and Pi Lm SRDL did not recommend the use of "betatron cor (U) Residual radiation values were obtained from Referens: 2u for Most of these residual values were estima all shots of interest. The residual radiation contribution from each shot for which aziru recovery time were reported was determined to be negligibvie. (U) The neutron data were obtained by USANDL (R the Oak Ridge National Laboratory (ORNL) (Reference presents the neutron data in the form of grap slant-range-squared versus slant-range, ard ar errors. For those shots for which gold-neutr gold-neutron data were estimated from the ratio o similar shots. (U) Reference 58 presents the neutron data in tabular form as as graphically, thus allowing more preciss determination of flux values. Neutron data for Shot Priscilla at distances between 400 and 6CO yards were very erratic and did not follow the parallel-line assumption. The placement of the detectors appeared to be the disturbing factor. These detectors were placed among many structures and other installatiors, ca which may have caused scattering and other disturbances in the flux Tiel These measurements, although an indication of the actual flux at the point of measurement, probably did not give a true picture of the freefield flux. For the free-field flux at these distances, the values waren from an extrapolation of the curve obtained from graching Plux-7 S —-S ranse-squarec versus slant-range protably give a more realistic (U) Neutron fluxes from Shot Smoky were ootained to evaluate effects of terrain on neutron measurements. Since the terra: 2 were pronounced, the neutron data can not be extrapolated to ai ances other than these at which actual measurements were made. (U) The gamma data corrected, where possible, for neutron effects are presented in Tables 3.93 thru 3.110. The film data reported are baxes from NBS film badge measurements uniess stated otherwise. Curves of gam dose-times-slant-range-squared versus slant-range are 3.64 thru 3.81. 3.12 shown in Figures OPERATION HARDTACK (U) Operation Hardtack was a two-phase operation: Phase I was con- ducted at the PPG from May thru August 1958 and consisted of 35 shots which included the first very-high-altitude detonstions; 39 Phase II was