Is this good for educators?

Yes — this version of "Radiation Shielding for a breeder reactor" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.

Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Educators · Radiation Shielding

Radiation Shielding for a breeder reactor

Built for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs. Simulate a breeder reactor live below — adjust the inputs and watch it respond, right in your browser.

Radiation ShieldingLive

attenuation & half-value layer

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Thickness (mm)

Gamma rays are not stopped abruptly — they are attenuated exponentially, I = I₀·e^(−μx). The half-value layer is the thickness that cuts intensity in half, and it takes about ten of them to reach 0.1%. Dense, high-atomic-number materials like lead have the largest μ, which is why they make the most compact shields.

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Data Inspector

Transmitted3.37%

Half-value layer6.1 mm

Tenth-value layer20.4 mm

Governing equation

I = I_{0} e^{- μx} = I_{0} e^{- 0.113 \cdot 30} = 3.4% I_{0}, HVL = \frac{ln 2}{μ} = 6.1 mm

Reading this result: Lead cuts the beam to 3.4%; you are past one half-value layer (6.1 mm).

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Frequently asked questions

Is this good for educators?: Yes — this version of "Radiation Shielding for a breeder reactor" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.