Selected for you

Find out more
Products and services

Ionising radiation protection

Calibration to ensure accurate measurements

Protection of personnel is critical in environments with ionising radiation, and requires the constant monitoring of radiation levels. Radiation protection legislation sets requirements for the monitoring of ionising radiation in the workplace, covering workers in the nuclear industry as well as any other professions with increased radiation levels, such as aircraft altitudes. The regular testing of appropriate monitoring equipment applies to alpha-, beta-, photon- and neutron radiations.  

Radiation-monitoring instruments are regularly tested and calibrated to a known accuracy in relation to national standards. In general, this equipment will be suitable for either the assessment of the radiation dose received by the individual or the routine assessment of radiation levels in the working environments or areas. NPL also provides calibration services for this equipment.

Contact us


NPL provides protection-level calibration services tailored for ionisation chambers used as secondary standards or instruments, as well as calibration for electrometers, environmental dose rate monitors and non-invasive voltage measurement equipment.

We’re here to help

Still struggling to work out what you need? We pride ourselves on giving sound technical advice to guide you. By combining expert advice, standard tests and bespoke consultancy, you can be confident in our approach.

Contact us

Case study

Supporting commissioning of new radiotherapy equipment safely and promptly


Case study

Simulating radiation therapy using virtual reality



Find out more about our expertise in this area, and how we are creating impact from science and engineering.

Work with us

Our research and measurement solutions support innovation and product development. We work with companies to deliver business advantage and commercial success.
Contact our Customer Services team on +44 20 8943 7070