Energy straggling of protons through thin solid foils

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The energy straggling for protons impinging on thin solid films of Al, Si, Zn and Au was studied by means of a theoretical model. The different mechanisms involved in the energy dispersion were also investigated. It was found that the energy dispersion produced by single-particle collisions with val...

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Detalles Bibliográficos
Autores principales: Arboó, D.G., Gravielle, M.S., Miraglia, J.E., Eckardt, J.C., Lantschner, G.H., Famaá, M., Arista, N.R.
Formato: JOUR
Materias:
Approximation theory
Atomic force microscopy
Atomic physics
Band structure
Crystal atomic structure
Crystal impurities
Dielectric materials
Electrons
Impact ionization
Ion beams
Mathematical models
Solids
Surface roughness
Targets
Thin films
Transmission electron microscopy
Energy straggling
Single-particle collisions
Valence electrons
Proton irradiation
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10502947_v65_n4_p429011_Arboo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:The energy straggling for protons impinging on thin solid films of Al, Si, Zn and Au was studied by means of a theoretical model. The different mechanisms involved in the energy dispersion were also investigated. It was found that the energy dispersion produced by single-particle collisions with valence electrons was the dominant contribution at low energies, and reached a saturation value when the velocity increased. Inner-shell straggling was found to be important at intermediate and high velocities. © Oxford University Press 2002.

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