UKAS Radioactive Source Calibrations
UKAS Accredited Radioactive Source Calibrations
Ensure the accuracy and traceability of your radioactive reference sources with HTSL’s UKAS-accredited calibration service. We calibrate alpha, beta and photon large area sources used to verify radiation detection equipment across nuclear, healthcare, research and industrial applications.
UKAS Calibration
Range of Nuclides
Traceable to National Standards
Fast Turnaround
- Radiological Experts
- UK Nationwide Coverage
- 25+ Years of Experience

Our Calibration Capabilities
Our UKAS radioactive source calibrations include the following nuclides:
Alpha Emitting Sources
Americium-241, Thorium-230, Plutonium-239 & Uranium-234/238
Beta Emitting Sources
Chlorine-36, Carbon-14, Strontium-90/Yttrium-90, Cobalt-60, Caesium-137 & Technetium-99
Electron Capture Sources
Iron-55
Also From HTSL Group
UKAS Calibration Laboratory
Accredited to ISO 17025
Radiation Protection Adviser
External RPA appointment under IRR17
DGSA Advisers
Transport for radioactive sources
Why Choose HTSL for UKAS Radioactive Source Calibrations?
Compliant, accredited, and traceable UKAS calibrations supported by expert radiation metrology technicians.
UKAS Accredited
Calibration performed in accordance with ISO/IEC 17025, providing full traceability and confidence in your reference sources.
Comprehensive Source Capability
Calibration of alpha, beta and photon large area sources covering a wide range of radionuclides and applications.
Traceable Certification
Receive a detailed UKAS calibration certificate documenting the measured surface emission rate and associated uncertainty.
Fast Turnaround
Efficient calibration service designed to minimise downtime and return your reference sources quickly.
Experienced Specialists
Our radiation metrology experts have extensive experience calibrating radioactive reference sources for organisations across the UK.
Collection and Delivery Service
Secure transport options and expert support available for customers throughout the UK.
Speak with our radiation metrology team today to discuss your UKAS source calibration requirements or request a quick quote.
Quick Contact Form
Speak to our experts about your radioactive reference source calibration requirements.
0330 236 6901
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