Summary
It is shown that the prong-number distribution of « stars » produced in nuclear emulsions by energetic protons may be used to give a qualitative indication of the spallation element yield curve for silver and bromine target nuclei. The prong number distribution of stars produced by energetic,E⩾1.5 GeV per nucleon, cosmic-ray nuclei withZ⩾6 is examined in a similar manner and it is shown that the spallation yield curve on the same target nuclei is significantly different from that observed for protons.
Riassunto
Si dimostra che la distribuzione del numero dei rami delle « stelle » prodotte nelle emulsioni nucleari da protoni energetici può essere usato per dare una indicazione qualitativa sulla curva di resa degli elementi di frantumazione dei nuclei bersaglio di argento e bromo. Si esamina in modo analogo la distribuzione del numero di rami delle stelle prodotte da nuclei di raggi cosmici energetici,E⩾1.5 GeV per nucleone, conZ⩾6 e si mostra che la curva del rendimento della frantumazione differisce in modo significativo da quella osservata per i protoni.
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This work was supported by the Office of Naval Research under contract Nonr-710(19).
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Waddington, C.J. A note on the spallation of silver and bromine by high-energy protons and heavy nuclei. Nuovo Cim 31, 748–755 (1964). https://doi.org/10.1007/BF02733791
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DOI: https://doi.org/10.1007/BF02733791