Radiochemistry Division measured all nuclear tests conducted by LRL. Under the Plowshare Program, the division investigated the production of transcurium elements from nulcear explosions. Other radiochemists worked on high-altitude diagnostic systems as part of atmospheric testing, including participation in PPG field test preparations, obtaining radioactive debris and gas samples from the atmosphere, using an airborne radar system to detect and delineate nuclear clouds. Earth Sciences Earth Science Group made extensive measurements of the underground experiments of Hardtack II, mapping Rainier, Blanca, Logan, and Neptune events to determine radiation and temperature distribution, thermal energy, and various geological phenomena. From the data developed at Gnome, Earth Science devised a temperature and radiation system. [See LRL-Nevada. ] Photographic Group The Technical Film Group provided photographic services, using in-plant camera, lighting equipment, sound-recording systems, time lapse and time-motion photography. The Photography Group also was assigned to Plowboy, and produced two Plowshare films ("Industrial Applications of Nuclear Explosions-- Mining"; "Creating Experiemnts with Chemical Explosives"). The Photography Group provided documentary and scientific film processes and safety movie coverage for all LRL experiments at NTS and high-speed photographic studies of tests, including Miniature blast models. The group also used a radiocontrolled system of remote photography of nuclear events.

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