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Master's Dissertation
DOI
10.11606/D.43.1986.tde-08112013-145930
Document
Author
Full name
Marcio Maia Vilela
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1986
Supervisor
Committee
Ribas, Roberto Vicencotto (President)
Douglas, Ross Alan
Quacchia, Juan Carlos Acquadro
Title in Portuguese
Medidas de poder de freamento de Si, Ti, V, Cu, Zn, Zr e Pd utilizando ions 14N e 16O
Keywords in Portuguese
14N
16O
Perda de energia
Poder de freamento
Abstract in Portuguese
Foram medidas as perdas de ernergia de íons 14N e 16O em sólidos (Si,Ti,V,Cu,Zn, Zr e Pd) na faixa de energias de 1 MeV/uma. A técnica utilizada constitui-se na medida de energia de projéteis espalhados a 25° por um alvo delgado de Au, antes e depois de atravessar a folha do element freador. Os resultados experimentais são comparados com as previsões semi-empíricas de Northcliffe & Schilling (N&S), Ziegler e uma nova versão de N&S feita por Hubert e colaboradores, sendo observada uma razoável concordância entre os valores medidos e as curvas semi-empíricas.
Title in English
Measures of stopping power of Si, Ti, V, Cu, Zn, Zr and Pd ions using 14N and 16O
Keywords in English
14N
16O
Loss of energy
Power braking
Abstract in English
Energy loss has been measured 14N and 16O at energies of 1 MeV/amu to 4 MeV/amu in Si, Ti, V, Cu, Zn, Zr and Pd foils. The technique consists in the measurement of the energies of ions scattered through 25 ° by a goldfoil before and after passing through the stopping foil. Our data compared to the semiempirical tabulations of Northcliffe and Schilling (N&S), Ziegler and new version of N&S by Hubert et al.. The predictions of these semiempirical compilations are in reasonable agreement with our experimental data.
 
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45140Vilela.pdf (6.92 Mbytes)
Publishing Date
2014-09-29
 
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