Taurus and IMBA®
Internal Dosimetry Software
How to buy Taurus/IMBA
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UK Health Security Agency
Radiation, Chemical and Environmental Hazards Directorate (RCE, formally CRCE) is now part of the UK Health Security Agency (UKHSA).
UKHSA is an executive agency, sponsored by the Department of Health and Social Care.
UKHSA Radiation Protection Services
UKHSA delivers radiological assessment consultancy services, training, expert information and advice and products.
Taurus - The New Internal Dosimetry Software
Taurus is the new internal dosimetry software developed by UKHSA's Chemical, Radiation and Environmental Hazards. It implements the most recent recommendations of the International Commission on Radiological Protection (ICRP Publication 103) and all the biokinetic and dosimetric models used for the calculation of the effective dose coefficients in the "Occupational Intakes of Radionuclides (OIR)" series of ICRP Publications. Users can use ICRP default parameter values or specify the parameter values for prospective and retrospective internal dosimetry calculations.
Available September 2020 - For more information please use the 'Contact us' button or send us an email to Taurus@phe.gov.uk
IMBA®; Integrated Modules for Bioassay Analysis
IMBA® (Integrated Modules for Bioassay Analysis) suite of software modules for internal dosimetry implements all of the biokinetic and dosimetric models recommended by the International Commission on Radiological Protection (ICRP). Users can specify their own parameter values and apply sophisticated data handling techniques to their customised internal dose calculations.
IMBA - New distribution arrangements
From 1 March 2022, under licence from UKHSA, the US Nuclear Regulatory Commission is taking over the distribution of IMBA worldwide (excluding Europe) through their RAMP programme. Please contact the new distributor at
Radiation Protection Computer Code Analysis and Maintenance Program (RAMP)To enquire about support for existing IMBA customers and for information on European sales please contact the UKHSA IMBA team at imba@phe.gov.uk or use the 'Contact us' button on this site.
Tell me about IMBA®
Learn more about the functionality of IMBA® and the system requirements for running this software.
How much does IMBA® cost?
IMBA® is available in three standard versions, IMBALite, IMBAPlus and IMBAPro with increasing levels of functionality to meet different needs.
IMBA® support
Access your User Account and the support services for IMBA® Support is included with each software sale.