within established limits was the Righ degree of Radsate eertrol exercised over working parties, aircraft ami. ships operating in contaminated arcas. - (5} Personnel dosage contral wile conducting @ completely ship-based cpefation was extremly difficult for the BRAVO shot, dus to the necessity for wusually large mmbers of working parties to perform frequect. sortiee into contaminated areas, the many ships used as Housing aflost and the centralisation of the fila beige processing laboratory fasilitisce <a one ship. (6) thmerical values of limiting eriteria for evacuation cf =| taak force populations depended upon the stage of completion of the opsre- | tion, sites and yields of remaining everts, and the average level of personnel dosages already sequired. In general, the levels which could be tolera- ted without evacuation were higher for shots. at the end of the series than for earlier shots, ds a general rule, a dose rate which would result in two to three times the MPE cf 3,.9r (and possibly as high as 20r) for the remining period of the operation was considered aceeptable without. resorting to the complexity, expense ami disruption of'an evacuation.. Similar values, with a further consideration of Lifo-tine dosage aspects, were considered aceceptable for native populations, | (7)Considering the Aigh: resistence fe fall-cut exhibited by the sercecl-type clouds“from water surfaee shots, and the wrususlly rapid "apparent desay* of intensities off-site froa shots following BRAVO, 4 rea~ sonable conelusica sould be dram that a "shine effect" was present for all such shots (and probably for the BRAVO shot as well). Since this effect was hot instrumented, it was impossible to assign it a mmerical value. Based on meager evidence, however, the "shine effect" waa estimated to account fcr 96