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Developed by PHE, IMBA (Integrated Modules for Bioassay Analysis) is a suite of software modules for internal dosimetry that implement the ICRP models for estimation of intakes and doses in response to new UK regulations and the requirement for a unified approach.


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IMBA (Integrated Modules for Bioassay Analysis) consists of a Base Unit and various Add-Ons which increase the functionality of the software.

The base unit is the core of IMBA Professional Plus and enables the user to perform basic internal dosimetry calculations. It implements the latest ICRP biokinetic and dosimetric models. Output is both tabular and graphical and special tools enable data transfer between Windows applications. For standard calculations, all of the ICRP default values can be selected from built-in databases at the touch of a button. For more detailed calculations, the user can enter individual parameter values. The product has been extensively quality assured and comes with complete documentation.

Users can customise the software to meet their individual requirements. Each Add-On increases the functionality of the IMBA Professional Plus base unit.

  • Purchase online Purchase IMBA quickly online using our simple and secure website
  • Online supportA comprehensive knowledge base along with access to software is available in our dedicated client area.
  • Help and adviceSupport is included with IMBA giving you access to help and advice from our team.

  • Developed by expertsIMBA (Integrated Modules for Bioassay Analysis) is a suite of software modules for internal dosimetry.
  • TrainingImprove your use of IMBA with our training courses presented by staff who have been directly involved in its development.
  • CustomersIMBA is used by many organisations around the world.