Electronic Resource
Springer
Astrophysics and space science
8 (1970), S. 74-85
ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Photometric mean track width measurements have been made on 81 primary particles (Z≥9) stopping in a nuclear emulsion stack exposed at 2.7 g/cm2 of residual atmosphere at Fort Churchill, Canada. The standard deviation of the charge determinations amounts to 0.14 units of charge for oxygen and increases to 0.40 units for iron nuclei when 10 mm track is measured. The relative abundances of the nuclei in the charge interval 8≤Z≤14 are given for the energy interval 250–400 MeV/nucleon, and comparisons are performed with the results of other measurements. The VH-particles are dominated by iron. The distribution of the VH-particles seems to be consistent with the assumption that the VH-nuclei have in the mean passed through only 1.6±0.5 g/cm2 interstellar matter.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00651657
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