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  • uranium
  • Comparison measurements with two different clocks, 26 Al and the decay of uranium isotopes, in refractory Ca-Al-rich inclusions (CAIs) and in feldspar crystals from ordinary chondrites indicate that both techniques give the same ages. (hawaii.edu)
  • Another, at the High Flux Isotope Reactor , a DOE Office of Science User Facility, was ORNL's first foray into technical feasibility of uranium-free production. (ornl.gov)
  • solar system
  • Marhas, K. K., Goswami, J. M., and Davis, A. M. (2002) Short-lived nuclides in hibonite grains from Murchison: Evidence for solar system evolution. (hawaii.edu)
  • It was assumed that 26 Al, together with other short-lived radioisotopes, had been produced by nuclear processes (nucleosynthesis) in stars prior to the collapse of the nebular cloud giving birth to our solar system. (hawaii.edu)
  • million years
  • Two other research groups reported at the Lunar and Planetary Science Conference (March, 2003) that unmetamorphosed ordinary chondrites contained iron-60 ( 60 Fe), an extinct isotope with a half-life of 1.5 million years. (hawaii.edu)
  • No isotope of technetium has a half-life longer than 4.2 million years ( 98 Tc), so its detection in red giants in 1952 helped bolster the theory that stars can produce heavier elements. (newworldencyclopedia.org)
  • parent
  • Until recently, foreign vendors supplied 100 percent of the parent isotope, which was mostly produced using HEU. (ornl.gov)
  • different
  • However, while two differing particles may have the same amount of energy, they may have very different responses from our living, biological cells, so a factor called Relative Biological Effectiveness (RBE) is also used. (nuclearinfo.net)
  • energy
  • A modern technological society like Australia makes substantial use of energy to make our lives better and more enjoyable. (nuclearinfo.net)
  • watch
  • Watch More: How Nuclear Power Saves Lives http://www.youtube.com/watch?v=rW2uXnoBYhE TestTube Wild Card http://testtube.com/dnews/dnews-264-strange-eating-disorder-ramen-addiction?utm_source=YT&utm_medium=DNews&utm_campaign=DNWC Are Wind and Solar Power Worth It ? (wn.com)