Response to what is the best way to protect film from airport x rays

Michael When I investigate the protection from Xray of various Minox spy cameras, I was surprized to find out that silver is better than lead in absorbing Xray. There are different Minox camera models made from steel, brass aluminium, and pure silver ingot. The aluminium body Minox provides almost no protection, while the silver Minox absorbs 99.8 % of Xray

X ray protection of Brass, Alumninium and Silver camera

Lead's Xray absorption index Mu is 52.2, for silver, Mu=60.4 Residue Xray = Iniitial Xray * exp (-Mu * d) Substitude d= 0.1 cm

We have Residue Xray of 1 mm of lead = 0.0054 Residue Xray of 1 mm of silver = 0.0024

There is only one camera in the world made of silver ingot, ---- Sterling Minox LX --- it is a collector item, very expensive, the better choice is to find a sterling silver box.

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