On the basis of information from two earlier experiments, Palanquin and Cabriolet, special dosimeters for measuring both beta and gamma radiation were placed in the open environment and on shrubs in the downwind area where fallout was anticipated. Project Schooner was a nuclear cratering experiment in the PLOWSHARE Program for peaceful application of nuclear explosives. The structures given as examples include small wood frame and large brick houses. The results were reported for the 1-hr weapon fallout, and TMI-2 cloud and fallout spectra, as well as for discrete energies from 15 KeV to 15 MeV. A generalized method for calculating the effect of ground roughness on the attentuation factor for fallout sources was also developed. That development included a method of accurately combining buildup factors in multi-region problems over wide ranges of energy and photon mean free path.

Point kernel models were developed for both the fallout and cloud sources. The research reported here transfers the knowledge gained from the previous weapon-fallout shielding work to realistic protection factors for more » possible accidental releases whatever the released spectrum might be.

This information is well known only for a few gamma ray spectra, such as that from weapon fallout. In order to determine what doses the public might receive if they try to evacuate or seek shelter, it is necessary to know how much protection structures such as homes and vehicles provide.

In the event of a release of radioactive material, it is necessary to know the doses the public could receive in order to make decisions that minimize the public's risk.

Fallout shelter layout plans