SP-466 The Star Splitters
 

The Heavy Nuclei Experiment, HEAO C-3.

The Heavy Nuclei Experiment, HEAO C-3. This cosmic ray experiment consisted of two large ionization chambers mounted back to back with a large Cerenkov counter between. It observed rare, high atomic number (z less than 30), relativistic nuclei in the cosmic rays. The instrument measured the elemental composition and energy spectra of these nuclei with sufficient resolution to determine the abundance of individual elements from chlorine (z = 17) through at least uranium (z = 92). The Principal Investigators were Martin Israel of Washington University, St. Louis, Missouri, Edward Stone of the California Institute of Technology, and C. J. Waddington of the University of Minnesota, Minneapolis. Shown with the experiment is Harold Kinney of Ball Brothers Aerospace.

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