of tests performed were accomplished under far-from-ideal testing conditions. 1. The initial gamma radiation from a surface burst should be measured over a 27 area instead of over small, narrow sectors, and should include dose-versus-time measurements. 2. The above measurements should be repeated for air bursts, using balloons instead of wooden towers for support of the device, in order to avoid interference from the residual radioactivity caused by tower material. 3. Laboratory experiments should be performed to determine more accurately the effects of neutrons on film emulsions and the contribution of the gamma photons from thermal-neutron capture in the walls of the protective shields. 30

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