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Radioactive Clocks and Cosmic-ray Transport in the Galaxy |
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| Authors: | RA Mewaldt NE Yanasak ME Wiedenbeck AJ Davis WR Binns ER Christian AC Cummings PL Hink RA Leske SM Niebur EC Stone TT Von Rosenvinge |
| Institution: | (1) California Institute of Technology, Pasadena, CA, 91125, U.S.A;(2) Jet Propulsion Laboratory, Pasadena, CA , 91009, U.S.A;(3) Washington University, St. Louis, MO , 68105, U.S.A;(4) Goddard Space Flight Center, Greenbelt, MD , 20771, U.S.A |
| Abstract: | There are a number of radioactive  clocks in the cosmic radiation that can be used to measure the time scales for cosmic ray processes in the Galaxy. With high-resolution isotope measurements available from ACE it is now possible to read these clocks with greatly improved accuracy and address key questions about the origin and lifetime of cosmic rays. This paper discusses the status of three such investigations. |
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