Alpha Meson
From Tardis Wiki, the free Doctor Who reference
Alpha Mezon was a type of energy.
It was used as "alpha meson phosphor", the presence of which could provide a light source throughout a building without the need for bulbs or openings to natural light. (TV: The Tomb of the Cybermen)
Not to be confused with Alpha Mezon: River Song carried an Alpha Meson blaster, capable of disintegrating a wooden cabinet (TV: The Pandorica Opens) and destroying a weakened Dalek. (TV: The Big Bang)
Behind the scenes
In The Tomb of the Cybermen, the energy was pronounced as "May-zon", while in The Big Bang, it was pronounced as "Mee-zon". This is because it is two separate phenomena.
