principally ionic rather than particulate.
Detergents and ion-exchange carriers were ef-
fective in removing some remaining activity.
6.2.7 Protection of Personnel in Radiation Fields. Since the operation of the ships and
their subsequent decontamination involved the exposure of a large number of personnel to
radiation, a number of studies were performed on personnel protection and dosimetry.
In general, mission planning and survey readings wereeffective in limiting dosages to
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Figure 6.6 Evaluation of experimental decontamination procedures, YAG~40, Shot 2.
safe amounts. A system of zoning, with check points and provisions for clothing changes
between, prevented the spread of contamination. A study of a special multiple~-shield
film-badge holder revealed that combination beta-gamma dosimetry was valuable, but
87