Provision of Technical Support in the Assessment of Radiation Fields at the Perimeter of Selected Nuclear Licensed Sites

There is an obligation on ONR to provide regulatory assurance on the management by licensees of radiation fields at their site fences. This requires ONR to establish independent confirmation of these radiation fields. The contractor must be able to apply suitable and sufficient expertise in the following areas: i) Categorisation of gamma and neutron background; ii) Instrumentation and the making of environmental measurements of ambient gamma and neutron radiation levels; iii) Analysis of these measurements to provide estimates of exposures to the representative persons, in terms of direct exposure only; iv) Analysis of data (mostly TLD measurements) made by licensee and estimation of direct exposures to the representative persons on the basis of these.