Britain's Atomic Factories - First Picture Of Production -- "Hand and Foot" radiation monitors are used daily by the men who work in the Windscale factory. These ensure that workers do not carry away radio-active material on their hands or clothes. The health physics and safety department are responsible for ensuring that maximum permissible levels of activity are not exceeded anywhere in the plant or the surrounding country. June 1, 1954. (Photo by British Official Photograph).