Summary
In a stack of 30 nuclear emulsions exposed to cosmic radiation near the geomagnetic equator, 65 tracks of heavy primary nuclei were located. Out of the total 65 tracks of heavy nuclei, 24 exhibited interactions with the nucleons of the emulsion. In 10 of these 24 interactions primary particles break up into fragments of charge −2. The charge of these particles is determined by δ-ray counting and from gap length distribution while the energy per nucleon is found from the relative scattering method and from the opening angle of the fragments.
Riassunto
In un pacco di 30 emulsioni nucleari esposte alla radiazione cosmica in prossimità dell’equatore geomagnetico si sono identificate 65 tracce di nuclei primari pesanti. Sul totale di 65 tracce, 24 mostravano interazioni coi nucleoni dell’emulsione. In 10 di queste 24 interazioni le particelle primarie si spezzano in frammenti di carica – 2. Si determina la carica di queste particelle col conteggio dei raggi δ e dalla distribuzione della lunghezza dei gap, mentre l’energia per nucleone si trova col metodo dello scattering relativo e dall’angolo di apertura dei frammenti.
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Jain, P.L. Nuclear interaction of heavy primary cosmic radiation. Nuovo Cim 13, 839–848 (1959). https://doi.org/10.1007/BF02726370
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DOI: https://doi.org/10.1007/BF02726370