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The Heavy Nuclei eXplorer (HNX) MissionThe primary scientific objectives of HNX, which was recently selected by NASA for a Small Explorer (SMEX) Mission Concept Study, are to measure the age of the galactic cosmic rays (GCR) since nucleosynthesis, determine the injection mechanism for the GCR accelerator (Volatility or FIP), and study the mix of nucleosynthetic processes that contribute to the source of GCRs. The experimental goal of HNX is to measure the elemental abundances of all individual stable nuclei from neon through the actinides and possibly beyond. HNX is composed of two instruments: ECCO, which measures elemental abundances of nuclei with Z greater than or equal to 72, and ENTICE. which measures elemental abundances of nuclei with Z between 10 and 82. We describe the mission and the science that can be addressed by HNX.
Document ID
20020034624
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Binns, W. R.
(Washington Univ. Saint Louis, MO United States)
Adams, J. H.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Barbier, L. M.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Craig, N.
(California Univ. Berkeley, CA United States)
Cummings, A. C.
(California Inst. of Tech. CA United States)
Cummings, J. R.
(Washington Univ. Saint Louis, MO United States)
Doke, T.
(Waseda Univ. Tokyo, Japan)
Hasebe, N.
(Waseda Univ. Tokyo, Japan)
Hayashi, T.
(Waseda Univ. Tokyo, Japan)
Whitaker, Ann F.
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Space Radiation
Meeting Information
Meeting: 27th ICRC 2001 Conference
Location: Hamburg
Country: Germany
Start Date: August 7, 2001
End Date: August 15, 2001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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