Calculators & data

  • Dangerous Quantities of Radioactive Material (D-Values)

    Published: Feb 11, 2019

    Source: IAEA

    • Radioactive
    • D-Values
    • IAEA
    • HASS

    D-values are used by the Environment Agency (EA), SEPA and the UK police advisers (CTSA) to determine the source category and appropriate security measures for sealed sources, where this cannot be assessed directly from the use/practice. D (Danger) values are in TBq, and the quotient A/D (where A is the activity of a source in TBq) are used to determine source category. In the UK some sources are already categorised for security and this will then take precedence over A/D. For those into dosimetry calculations and assessments behind D values, section 3 onwards explain in detail how the values are derived.

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  • EPCARD (Aviation cosmic radiation calculator)

    Published: Feb 09, 2019

    Source: EPCARD

    • Cosmic radiation
    • Aviation
    • radiation calculator

    EPCARD stands for 'European Program Package for the Calculation of Aviation Route Doses'. This comprehensive online calculator is produced by the GSF-National Research Center for Environment and Health (Germany). You can calculate cosmic radiation dose received en route between any two airports (on any given day), or the dose rate in the plane for a given elevation and position.

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  • Radprocalculator

    Published: Feb 04, 2019

    Source: Radprocalculator

    An online calculator for undertaking all manner of radiation safety related calculations.

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  • AJ Radioactive Material Equations and Formulas Calculator

    Published: Nov 13, 2018


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Physics is really nothing more than a search for ultimate simplicity, but so far all we have is a kind of elegant messiness

– Bill Bryson -