IFIR 05409
INSTITUTO DE FISICA DE ROSARIO
Unidad Ejecutora - UE
artículos
Título:
Ionization of liquid water by fast electron impact: Multiple differential cross sections for the 1B1 orbital
Autor/es:
O. A. FOJÓN; M. L. DE SANCTIS; R. VUILLEUMIER; C. R. STIA; M. F. POLITIS
Revista:
JOURNAL OF PHYSICS: CONFERENCE SERIES
Editorial:
Institute of Physics Publishing
Referencias:
Lugar: Bristol; Año: 2011 vol. 288 p. 120101 - 120107
ISSN:
1742-6596
Resumen:
We present a theoretical study of single ionization of water molecules in liquid phase by impact of fast electrons in a coplanar geometry. Multiple di erential cross sections are obtained through a first order model obtained within the framework of an independent electron approximation in which relaxation of the target is not taken into account. The wavefunctions for a single water molecule in the liquid phase are obtained through a Wannier orbital formalism and the ejected electron is described by means of Coulomb functions. We also present averaged calculations over all molecular orientations. A comparison with previoustheoretical and experimental results, the latter corresponding to water in gaz phase, shows a good agreement. The main physical features of the reaction (such as binary and recoil peaks) present in measurements for vapor are also observed in the present theoretical predictions.
