Office for Nuclear Regulation

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Ionising Radiations Regulations 2017 inspection

Executive summary

Purpose of Intervention

ONR undertook an inspection to examine the Magnox Ltd Harwell arrangements for controlling exposures to ionising radiations in the building formerly occupied by its tenants Mirion Technologies Ltd. This inspection was in support of considerations of issuing a  permission under LC 5 (Consignment of nuclear matter). In addition we undertook an inspection of arrangements for compliance with the Ionising Radiations Regulations 2017 was also conducted, focussing on the use of an X-ray baggage scanner.

Interventions Carried Out by ONR

I inspected the Harwell site’s compliance with the following:

Explanation of Judgement if Safety System Not Judged to be Adequate

Not Applicable

Key Findings, Inspector's Opinions and Reasons for Judgements Made

The key findings were as follows:

Conclusion of Intervention

 It is my opinion that the Licensee should address shortfalls against the expectations of IRR17 for the storage of sealed sources previously used by Mirion Technologies Ltd. However the Licensee is complying with the requirements of IRR17 in other areas which were inspected at the Magnox Ltd Harwell site.