Experimental and theoretical study of charge transfer in hydrogen ion scattering from a graphite surface

Ion scattering spectrometry (ISS) with time of flight (TOF) analysis is employed to measure the ion fraction of positively charged hydrogen (H+) projectiles scattered from a well characterized highly oriented pyrolitc graphite (HOPG) surface at a 458 scattering angle, various ingoing/outgoing angles and two different incoming energies (4 and 5 keV). In the theoretical approach, the negative ionization probability is calculated by employing a Green’s function formalism to solve the dynamic collisional process. Both theoretical and experimental results are analyzed and contrasted. The theoretical negative ion fraction evolution during the collisional process is described in detail.

Palabras clave: Negative Ions , Hydrogen , Hopg

Ver el registro completo

Archivos asociados

Tamaño: 498.9Kb

Formato: PDF

Descargar

Licencia

Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

Identificadores

URI: http://hdl.handle.net/11336/22808

DOI: http://dx.doi.org/10.1016/j.apsusc.2007.07.037

URL: http://www.sciencedirect.com/science/article/pii/S0169433207009506

Colecciones

Articulos(INTEC)
Articulos de INST.DE DES.TECNOL.PARA LA IND.QUIMICA (I)

Citación

Bonetto, Fernando Jose; Garcia, Evelina Andrea; Vidal, Ricardo Alberto; Ferron, Julio; Goldberg, Edith Catalina; Experimental and theoretical study of charge transfer in hydrogen ion scattering from a graphite surface; Elsevier Science; Applied Surface Science; 254; 1; 12-2007; 62-64

Altmétricas