Fuel fleas. Fuel fleas are microscopic hot particles of new or spent nuclear fuel. While small, they tend to be intensely radioactive. The fuel particles, the size about 10 micrometers, are a strong source of beta and gamma radiation and a weaker source of alpha radiation.
Bella Cullen(played by Kristen Stewart in the movies). Bella Swan is 18 at the time she's turned into a vampire in Breaking Dawn. She is the central character in the Twilight saga and took the name Cullen when she married Edward Cullen.
Edward is a vampire  who, over the course of the Twilight series, falls in love with,  marries, and has a child with Bella Swan, a human teenager who  later chooses to become a vampire also. In the 2008 Twilight film,  Edward is played by actor Robert Pattinson. Robert Pattinson lives  in Barnes, London.