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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Investigação dos limiares dos processos de fragmentação e fusão incompleta / Investigation of thresholds of the processes of fragmentation and incomplete fusion

Added, Nemitala 01 March 1991 (has links)
Foram medidas correlações angulares entre C- \'ALFA\' nos sistemas \'ANTPOT. 16,18\'O + \'ANTPOT. 27\'Al e \'ANTPOT. 18\'O + \'ANTPOT. 28\'Si nas energias de 64, 56 e 50 MeV. As partículas pesadas (C) foram detetadas em ângulos próximos ao \"ângulo rasante\" do espalhamento. Os comportamentos das seções de choque dos processos de fusão incompleta e fragmentação em função do ângulo e energia são explciados com base em modelos simples de transferência-evaporação (fusão ncompleta) e decaimento sequencial (excitação-fragmentação) do projétil. / Charged particles angular correlations (C - ) were measured for the 16,18O + 27AI and 16 O + 28Si reactions at 64, 56 and 50 MeV bombarding energies. Heavy fragments (C) were detected near grazing angle. The observed energy dependence of incomplete fusion and projectile fragmen­ tation has been fitted to simple models based on a transfer reemission and projectile sequential decay (excitation-fragmentation) pictures.
2

Investigação dos limiares dos processos de fragmentação e fusão incompleta / Investigation of thresholds of the processes of fragmentation and incomplete fusion

Nemitala Added 01 March 1991 (has links)
Foram medidas correlações angulares entre C- \'ALFA\' nos sistemas \'ANTPOT. 16,18\'O + \'ANTPOT. 27\'Al e \'ANTPOT. 18\'O + \'ANTPOT. 28\'Si nas energias de 64, 56 e 50 MeV. As partículas pesadas (C) foram detetadas em ângulos próximos ao \"ângulo rasante\" do espalhamento. Os comportamentos das seções de choque dos processos de fusão incompleta e fragmentação em função do ângulo e energia são explciados com base em modelos simples de transferência-evaporação (fusão ncompleta) e decaimento sequencial (excitação-fragmentação) do projétil. / Charged particles angular correlations (C - ) were measured for the 16,18O + 27AI and 16 O + 28Si reactions at 64, 56 and 50 MeV bombarding energies. Heavy fragments (C) were detected near grazing angle. The observed energy dependence of incomplete fusion and projectile fragmen­ tation has been fitted to simple models based on a transfer reemission and projectile sequential decay (excitation-fragmentation) pictures.

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