Radiation protection widgets & calculators

A collection of in-house, Dr Chris Robbins (Grallator), collaborative and internet recommended resource comprising:

Radiation protection widgets.

Radiation protection calculators.

Recommended similar resource from across the internet.

The radiation protection widgets are interactive tools to aid radiation safety education and training. Widgets and tools featured here are for use by anyone (from within the Ionactive resources pages), these and additional exclusive widgets / tools feature in our online radiation safety training courses, and face to face training services.

  • Dose rate through a small aperture widget

    Published: May 03, 2024

    Source: Design & implementation by Dr Chris Robbins (Grallator) / Facilitated by Ionactive radiation protection resource

      Tags:
    • Gamma rays
    • aperture
    • Dose Rate
    • widget
    • Calculator
    • equivalent dose
    • effective dose
    • Whole body exposure
    • Nuclear gauge accident dose rates
    • Nuclear gauge
    • Inverse square law
    • dose rate through small hole

    Imagine a radioactive source holder breaking away from an industrial nuclear gauge  - forming a small aperture from which gamma rays can be emitted. What would the dose rate be at various distances from the aperture, and what % of the body trunk would be exposed at each distance? When would an equivalent dose to a part of the body become a whole body effective dose? This interactive widget sets out to answer these questions. 

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  • Gamma dose rate (D=AE/6r2) - or is it? A widget to calculate the validity of this formula.

    Published: Apr 02, 2024

    Source: Design & implementation by Dr Chris Robbins (Grallator) / Facilitated by Ionactive radiation protection resource

      Tags:
    • D=AE/6r2
    • D=ME/6r2
    • Gamma dose rate formula
    • Gamma emitter
    • Radioactivity
    • Co-60
    • Cs-137
    • Ir-192
    • I-125
    • Mass Energy Absorption Coefficient
    • Energy dose contribution
    • Soft tissue absorption
    • micro Gy
    • Absorbed dose
    • Gamma dose rate calculator
    • Gamma dose rate widget

    This resource uses a radiation protection widget to explore the validity of a popular gamma dose rate formula of the form:

    \[ \begin{align} D_{\mu Sv hr^{-1}} &= \frac{AE}{6 r^2 } \end{align} \]

    where D is dose rate in µSv/h, A is activity in (MBq), E is gamma ray energy in MeV, and r is the distance in m.

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  • Shielding gamma rays with thick water shielding - what if you fall in?

    Published: Mar 31, 2024

    Source: Design & implementation by Dr Chris Robbins (Grallator) / Facilitated by Ionactive radiation protection resource

      Tags:
    • Gamma rays
    • Spent nuclear fuel
    • Co-60
    • Cobalt-60
    • Storage pool
    • Water shielding
    • Dose
    • Dose Rate
    • TVT
    • 10th Value Thickness
    • Shielding pool
    • Gray (Gy)
    • Sieverts (Sv)
    • Dose assessment
    • Exposure calculation
    • Water pool
    • Water pond
    • Fall in water

    Large volumes of water (in pools / ponds) are often used for radiation shielding, particularly for spent nuclear fuel and high activity Co-60 sources in industrial irradiation facilities. The water provides shielding and cooling whilst allowing remote movement of highly radioactive items where operators stand safely outside the pool. Imagine falling in - how would you fair? Very well if you can swim as illustrated in this radiation protection widget.

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  • Radiation time, distance & shielding interactive ALARP widget

    Published: Mar 29, 2024

    Source: Design & implementation by Dr Chris Robbins (Grallator) / Facilitated by Ionactive radiation protection resource

      Tags:
    • Protection by time
    • Protection by distance
    • Inverse square law
    • Protection by shielding
    • Radiation dose
    • Radiation dose rate
    • TVT
    • 10th value thichness
    • HVT
    • 1/2 value thichness
    • ALARP
    • ALARA
    • As low as reasonably practicable
    • Calculator
    • Gamma rays
    • x-rays
    • Industrial Radiography
    • NDT
    • Medical Radiation
    • RPA
    • RPS
    • ALARP calculator
    • ALARA calculator
    • radiation protection training

    Use this interactive ALARP / ALARA calculator widget to investigate the effect of time, distance and shielding on radiation dose rate and accumulated exposure. A great radiation protection training / educational aid - learn the concepts first, then investigate them interactively! Explore how best to optimise exposure by using a combination of all three protection methods.

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  • X-ray Tube Dose Rate Calculator Widget

    Published: Mar 28, 2024

    Source: Design & implementation by Dr Chris Robbins (Grallator) / Facilitated by Ionactive radiation protection resource

      Tags:
    • X-ray tube dose rate calculator
    • X-ray tube dose rate widget
    • X-ray tube dose rate kV
    • X-ray tube dose rate mA
    • X-ray tube dose rate
    • X-ray tube dose rate filtration
    • NDT x-ray tube dose rate
    • Medical x-ray tube dose rae
    • Research x-ray tube dose rate
    • Bremsstrahlung x-rays
    • Characteristic X-rays
    • Tungsten target
    • Inverse square law
    • Mass Energy Absorption Coefficient
    • Gray (Gy)

    A radiation protection widget which calculates dose rates from an x-ray tube for a given kV, mA and filter (Al). This resource is strictly for training / educational use - that said, as a ballpark resource it gets pretty close to what you might expect from a typical x-ray tube.

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Be less curious about people and more curious about ideas

– Marie Curie -