The isotopic composition of cosmic rays with Z between 5 and 26

Details The isotopic composition of cosmic rays with Z between 5 and 26 The isotopic composition of cosmic rays with Z between 5 and 26

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...205..938f&link_type=abstract

Astrophysical Journal, vol. 205, May 1, 1976, pt. 1, p. 938-946.

Computer Science

Sound

41

Abundance, Balloon Sounding, Cosmic Rays, Isotopes, Carbon Isotopes, Cerenkov Counters, Histograms, Iron Isotopes, Neon Isotopes, Oxygen Isotopes, Particle Mass

Scientific paper

Results are reported for a high-altitude balloon flight which measured the isotopic composition of cosmic rays by using a Cerenkov-range technique to determine the masses of arriving cosmic rays with charges between 5 and 26 for kinetic energies around 450 MeV/amu. Event-selection criteria are discussed, and the mass-determination technique is outlined. Some of the mass histograms resulting from the analysis are presented along with the mean masses calculated from the data, and the derived isotopic compositions. It is found that: (1) C, N, and O are consistent with pure C-12, N-14, and O-16 sources; (2) Mg seems to require some neutron-rich component at the source; (3) Ne appears to require a source isotopic composition that is even more neutron-rich than the universal abundances; and (4) the source may be somewhat enriched in Fe-54. It is suggested that the fundamental nuclear physics which governed the synthesis of solar-system material may also be responsible for cosmic rays, implying that the solar system is probably an average sample of galactic matter.

Affiliated with

Also associated with

No associations

Rating

The isotopic composition of cosmic rays with Z between 5 and 26 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The isotopic composition of cosmic rays with Z between 5 and 26, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The isotopic composition of cosmic rays with Z between 5 and 26 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1795484