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On September 11, 1957, a plutonium fire occurred in one of the gloveboxes used to handle radioactive materials, igniting the combustible rubber gloves and plexiglas windows of the box. Metallic plutonium is a fire hazard and pyrophoric; under the right conditions it may ignite in air at room temperature. The fire escaped containment in under ...
HEPA filter banks meant to remove microscopic particles of plutonium from the glove box exhaust streams were destroyed by the fire, allowing radioactive smoke to escape the building. On the evening of September 11, 1957, plutonium shavings in a glove box in building 771, the Plutonium Recovery and Fabrication Facility, spontaneously ignited ...
Dec. 19—A sealed compartment with safety gloves attached caught fire at Los Alamos National Laboratory in November, resulting in officials shutting down a portion of the site's plutonium ...
The plutonium, dissolved in an organic solvent, flowed into the center of the vortex. Due to a procedural error, the mixture contained 3.27 kg of plutonium, which reached criticality for about 200 microseconds. Kelley received 3,900 to 4,900 rad (36.385 to 45.715 Sv) according to later estimates.
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Concrete walls 10 inches (250 mm) thick permitted as much as 20% plutonium-240 and 10% plutonium-241 content to be handled. Glove box shielding allowed for 12% plutonium-240 and 3.2% plutonium-241. Four main glove boxes were located on the first two floors with access to dissolver pots, hot plates, condensers and furnaces.
A fire alarm box, fire alarm call box, or fire alarm pull box is a device used for notifying a fire department of a fire or a fire alarm activation. Typically installed on street corners or on the outside of commercial buildings in urban areas, they were the main means of summoning firefighters before the general availability of telephones.
A glovebox (or glove box) is a sealed container that is designed to allow one to manipulate objects where a separate atmosphere is desired. Built into the sides of the glovebox are gloves arranged in such a way that the user can place their hands into the gloves and perform tasks inside the box without breaking containment.