Californium-252, historical image

Californium-252, historical image

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Credit: US DEPARTMENT OF ENERGY/SCIENCE PHOTO LIBRARY

Caption: Californium-252 neutron sources. Californium (Cf) is a chemical element that is mainly produced synthetically, but trace quantities are found in nature from neutron capture by uranium atoms. Californium-252 is an isotope of Californium that undergoes spontaneous fission and is used in small sized neutron sources. The world's most compact and intense isotope neutron sources are therefore provided by californium-252. Photographed circa 1972.

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Keywords: 1970s, 1972, 20th century, black and white, black-and-white, californium, californium-252, cf, chemical, chemistry, compact, element, historical, history, history of science, intense, isotope, isotopes, monochrome, neutron source, no-one, nobody, nuclear physics, physical, physics, small, spontaneous fission, still life, still-life

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