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Assessment of the variability of critical group doses and implications for dose limitation. - RP0142
i)To identify those factors in a critical group dose
variability will lead to a variation in the radiation doses
received by individuals
within the group.
ii)To quantify the likely ranges in the parameter values
used to represent the
above factors. Items to be considered will include habit
data, such as food intakes
rates; data relating to location such as occupancy factors;
and data relating to
doses per unit intake, including the effects of differences
in body mass and
iii)To estimate the distribution in individual doses within
the critical group due
to the authorised discharges for 2 particular sites.
iv)To examine the implications of the likely distribution of
doses in relation to
the system of radiological protection. The emphasis will be
on the implications of
the authorisation of routine discharges of radionuclides
from nuclear sites but
consideration will also be given to the implications for
comparisons of critical
group dose estimates with dose limits and dose constraints.
Any implications for
methods of assessing critical group doses will also be
v)A final report will be prepared.
Time-Scale and Cost
Contractor / Funded Organisations
National Radiological Protection Board