45). ~~ ( (Re feren Shields wer Slant range. because a weak ported here. (U) Los Alamos Project 13.3a (Reference 42) attempted to resolve the discrepancy between the Los Alamos AW film oads= and the NSS Tilrbadge results, by comparing them with energy-iniependent Victoreen t chamber readings. The results were discussed in Chapter 2. The 136 ard AW badges were exposed on metal stakes to the radiation from Shorts 6, 4, 9, 13, and 14. The measurements obtained from Shot 13 were afferied by the cloud passing over the instrument line. Tne NBS film-caige results obtained by LASL are presented tb supplement the SerDL gamma data and no distinction is male between the two in the table (U) The bulk of the gamma data reported was obtained from the SRDL measurements. The NBS film badges were expose in aluminum holders a to metal stakes. It was assumed that the aluminum holders were t/t altitude shot. pau oO) w w ts 0Q Db: thick so that attenuation of the gamma radiation was negligibie. Th dosimetérs were exposed in the upwind direction and recov 3S 3007 4s practicable; therefore no residual radiation corrections were necessary. The film badges were exposed in 3/8- inch steel drop canisters for tre hignh- Windows covered with 1/16-inch aluminum were dri?~led the canister to expose the film. However, if the radiation di directly through the alumimim window it had to pass through th as well as the surrounding instrumentation which was not des the orientation of the canisters is not reported, no shield were m: i2 for this shot. (U) SRDL used "betatron correction factors" to account for 2 diffe:- ence in calibration curves for the various emisions when usi tion as opposed to betatron radiation. These factors are igno: Ln. report, since "“betatron correction factors" reported in Appendix C of ct Reference 45 -- which were obtained by use of the same betatron machine and film eumisions as those used by SRDL -- do not agree with SrDL resul SRDL considered the "betatron correction factors” for previous oper to be negligible excent for 508 film emulsion which was not usei duric aq + Operation Teapot. No experimental confirmation was obtainrei for zcths "“petatron correction factors", during subsequent operation1s ne (U) The underground detonation, Shot 7, was instrumented with ives film badges to obtain residual radiation measurements and is not décztribed Tas in this report. The Shot 11 gamma data out to 1204 yards are a comgscsite of © , 45° and 90° lines. The gamma data at 412, 510, and 608 yaric for Shot 11 are questionable because the emulsions used at these stations were exposed below or above their normal ranges. 35