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SUMMARY:Large scaled observation program of ultra heavy nuclei in galactic
  cosmic rays
DTSTART;VALUE=DATE-TIME:20070704T194500Z
DTEND;VALUE=DATE-TIME:20070704T194500Z
DTSTAMP;VALUE=DATE-TIME:20260415T185724Z
UID:indico-contribution-773@cern.ch
DESCRIPTION:Speakers: Prof. HASEBE\, Nobuyuki (Waseda University)\nOur gal
 axy is filled with relativistic nuclei and electrons\, or galactic cosmic\
 nrays(GCRs). The source of GCR nuclei\, especially ultraheavy nuclei(Z>30)
 \, is still\nunknown\, though the measurement of ultraheavy cosmic rays ha
 s been identified as an\nimportant goal of cosmic-ray research. Observatio
 n program of ultra-heavy nuclei in\nGCRs is proposed with the use of solid
 -state track detector on board long-duration\nballoon and/or space station
 . The program focuses to measure the isotopic abundance\nabove iron-peak e
 lements and the composition of the rare ultraheavy nuclei up to\nuranium a
 nd transuranium at high energies. The observation of nuclear composition\n
 covers a wide range of scientific themes including studies of nucleosynthe
 sis of\ncosmic ray sources\, chemical evolution of galactic material\, the
  characteristic time\nof cosmic rays\, heating and acceleration mechanism 
 of cosmic ray particles. In order\nto achieve the objectives\, the Interna
 tional Space Station and/or Super Pressure\nBalloon capable of carrying ve
 ry large scientific payloads for long extended period\nis best suited. The
  possible approach is based on a large telescope-array(4m^2 in\nsensitive 
 area) of modularized SSTD stacks presently under study.\n\nhttps://indico.
 nucleares.unam.mx/event/4/session/8/contribution/773
LOCATION:Merida\, Mexico Regency (Hyatt)
URL:https://indico.nucleares.unam.mx/event/4/session/8/contribution/773
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