This guidance has been developed by Jo Page and Peter Marsden, in collaboration with HSE, to augment that provided by HSE on the RADAN Safety Assessment Template. It is intended to define a level of response which should be sufficient to provide the HSE with the information they require.

This guidance was created in the context of a Nuclear Medicine Department carrying out diagnostic and therapeutic procedures with unsealed radioactive material. It should be equally applicable to administrations using sealed sources in brachytherapy and, to a certain degree, to administrations to animals. It will also be applicable, to a considerable degree, to radiopharmacies seeking consent for the addition of radioactive materials to products. The principles applied in this document may also be of interest to those seeking consent for the use of accelerators in Radiotherapy.