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John J. Livingood
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<p>John Jacob Livingood (March 7, 1903 – July 21, 1986) was an American <a href="/facts/Nuclear_physics/fzQbt1aF">nuclear physicist</a> specialising in the design of <a href="/facts/Particle_accelerator/Pkuc08xC">particle accelerators</a>. With <a href="/facts/Glenn_Seaborg/w1a3mume">Glenn Seaborg</a> he discovered and characterized a number of new <a href="/facts/Radioisotopes/5WpCfbdq">radioisotopes</a> useful for <a href="/facts/Nuclear_medicine/L9Dzjd90">nuclear medicine</a>, including <a href="/facts/Cobalt-60/hjDPVA8M">cobalt-60</a>, <a href="/facts/Iodine-131/cMvRbKfK">iodine-131</a> and <a href="/facts/Iron-59/GVebbg1n">iron-59</a>. </p>