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Updated: Jul 19, 2026

Dosimetry for Cell Irradiation using Orthovoltage (40-300 kV) X-Ray Facilities
Published on: February 20, 2021
Experience of radiation passbooks in the UK NRPB dose record keeping service
1Health Protection Agency, Chilton, Didcot, Oxon OX11 0RQ, UK. nicky.garratt@hpa-rp.org.uk
Abstract:
The National Radiological Protection Board (NRPB)--now part of the new UK Health Protection Agency (HPA)--has operated an automated Dose Record Keeping (DRK) Service for over 30 y, and currently maintains records for some 10,000 workers. A proportion of these are designated as Outside Workers, and are issued with Radiation Passbooks, under the Ionising Radiations Regulations 1999 (IRR99). The present study reports the operational experience of NRPB's DRK Service in issuing passbooks, providing advice to users and issuing tailored reports. Indication is given on some problems commonly encountered by employers and dosimetry services.
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