Isotopic measurements of the cosmic ray nuclei at 1.7 GeV/n and 0.5 GeV/nResults are presented on the mean isotopic composition of cosmic ray nuclei, or the average neutron excess for the elements Be to Si. At 1.7 GeV/nucleon they have been obtained by comparing the abundances measured above a rigidity threshold at Palestine, Texas, with abundances measured above an equivalent velocity threshold at Cape Girardeau Missouri. At 0.5 GeV/nucleon the results are obtained by analysing the variation in the chemical composition with energy in the energy region around the geomagnetic cut-off.
Document ID
19760043906
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Juliusson, E. (Chicago, University Chicago, Ill., United States)