Radiation Toolbox mascot

Radiation Toolbox

A Lazy Radiation Toolbox for quick calculations

Input

Use a non-negative number. Blank clears the result.

Result

Input: -

-

-

Show working

Canonical internal unit: Gym²

Secret sauce: -

Math flex: -

All unit conversions

    Inverse Sq & Barriers

    Input your parameters to find out what the result dose is

    Gy and Sv families stay separate.

    Reference distance is fixed at 1 m (0 m is not valid for inverse-square maths).

    Shielding

    NIST XCOM-style μ/ρ lookup is embedded for offline estimates.

    Exponential attenuation is narrow-beam idealization; scatter, buildup, field size, and geometry matter.

    Material composition varies (especially brick density). Results are estimates.

    Lead apron code thickness is physical thickness; Pb equivalence depends on beam quality and construction.

    Result

    Input: -

    -

    -

    Dose Path

    Show working

    D_new = D_ref × (d_ref/d_new)^2

    D_final = D_new × exp(-μx)

    μ: -

    Combined: -

    More units / details
      UK Lead Code Equivalences
      Graph it: how spicy is the dose as you step back?

      Acitivity Converter

      Convert between common activity units used in nuclear medicine, radiation protection, and environmental monitoring.

      MBq

      Use a non-negative number. Blank clears the result.

      Input: -

      Bq

      dps is disintegrations per second. dpm is disintegrations per minute (60 dpm = 1 Bq).

      Activity Decay

      Coming soon.