Evaluation of doses due to submersion in a radioactive cloud

In some cases the term submersion doses may not be appropriate because what is generally meant with this expression are the doses of direct radiation from a cloud of radioactive substances travelling in the vicinity. Here xenon-133 (important for accidents to reactors or to gaseous waste decay tanks) and tritium ( H, important for fusion machines, for example) are 

Evaluation of the doses of radiation from caesium-137 deposited on the ground Cground-shine dose) 

The figures of interest for any practical case can be extrapolated from the data shown in Table 7-3, which gives the dose at various times after the deposition of 1 kBq m-2. 

For contamination deriving from an accident to a reactor, the radiation doses from the ground due to caesium-137 are generally more important than the contribution of other isotopes. 

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