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Heavy primary cosmic-rays during 1957

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Il Nuovo Cimento (1955-1965)

Summary

This supplement to a previous article (1) adds heavy primary cosmic-ray results during the year 1957 forG. M. latitude of 41 °N, based on a Texas balloon flight, which exposed Ilford G.5-G.0 combination emulsions at about 130000 feet. A flux value for ≥10 at the top of the atmosphere of (2.40±0.29)-10-4 particles/cm2 s sr was found. Thus a new point is established on the 8-year incomplete curve of the previous paper. The charge spectrum, mean free path and angular distribution are also included.

Riassunto

In questo seguito ad un articolo precedente si aggiungono i risultati sui raggi cosmici primari presenti durante l’anno 1957 alla latitudine geomagnetica 41°N, sulla base di un lancio di pallone nel Texas, in cui si espose una combinazione di emulsioni Ilford G-5 e G--0 a circa 130 000 ft. Si è trovato perZ> 10 un valore del flusso alla sommità dell’atmosfera di (2.40±0.29)-10-4 particelle/cm3 s sr. Si è trovato così un nuovo punto sulla curva incompleta di 8 anni dell’articolo precedente. Si includono anche lo spettro delle cariche, il cammino libero medio e la distribuzione angolare.

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References

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Young, O.B., Lieh, J.W. Heavy primary cosmic-rays during 1957. Nuovo Cim 31, 974–977 (1964). https://doi.org/10.1007/BF02821669

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  • DOI: https://doi.org/10.1007/BF02821669

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