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Electron and positron contributions to the displacement per atom profile in bulk multi-walled carbon nanotube material irradiated with gamma rays; Aporte de electrones y positrones al perfil de desplazamientos atomicos en materiales masivos de nanotubos de carbono de paredes multiples irradiados con rayos gamma

Journal Article:

Abstract

The electron and positron contributions to the effective atom displacement cross-section in multi-walled carbon nanotube bulk materials exposed to gamma rays were calculated. The physical properties and the displacement threshold energy value reported in literature for this material were taken into account. Then, using the mathematical simulation of photon and particle transport in matter, the electron and positron energy flux distributions within the irradiated object were also calculated. Finally, considering both results, the atom displacement damage profiles inside the analyzed bulk carbon nanotube material were determined. The individual contribution from each type of secondary particles generated by the photon interactions was specified. An increasing behavior of the displacement cross-sections for all the studied particles energy range was observed. The particles minimum kinetic energy values that make probabilistically possible the single and multiple atom displacement processes were determined. The positrons contribution importance to the total number of point defects generated during the interaction of gamma rays with the studied materials was confirmed.
Authors:
Leyva Fabelo, Antonio; Pinnera Hernandez, Ibrahin; Leyva Pernia, Diana, E-mail: aleyva@ceaden.edu.cu; [1]  others, and
  1. Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), La Habana (Cuba)
Publication Date:
Jul 01, 2013
Product Type:
Journal Article
Resource Relation:
Journal Name: Nucleus (Havana); Journal Issue: 53; Other Information: 26 refs., 5 figs.
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 77 NANOSCIENCE AND NANOTECHNOLOGY; ATOMIC DISPLACEMENTS; CARBON NANOTUBES; CROSS SECTIONS; GAMMA RADIATION; MONTE CARLO METHOD; SIMULATION
OSTI ID:
22177320
Country of Origin:
Cuba
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0864-084X; TRN: CU1300132000904
Submitting Site:
INIS
Size:
page(s) 5-9
Announcement Date:
Jan 09, 2014

Journal Article:

Citation Formats

Leyva Fabelo, Antonio, Pinnera Hernandez, Ibrahin, Leyva Pernia, Diana, E-mail: aleyva@ceaden.edu.cu, and others, and. Electron and positron contributions to the displacement per atom profile in bulk multi-walled carbon nanotube material irradiated with gamma rays; Aporte de electrones y positrones al perfil de desplazamientos atomicos en materiales masivos de nanotubos de carbono de paredes multiples irradiados con rayos gamma. Cuba: N. p., 2013. Web.
Leyva Fabelo, Antonio, Pinnera Hernandez, Ibrahin, Leyva Pernia, Diana, E-mail: aleyva@ceaden.edu.cu, & others, and. Electron and positron contributions to the displacement per atom profile in bulk multi-walled carbon nanotube material irradiated with gamma rays; Aporte de electrones y positrones al perfil de desplazamientos atomicos en materiales masivos de nanotubos de carbono de paredes multiples irradiados con rayos gamma. Cuba.
Leyva Fabelo, Antonio, Pinnera Hernandez, Ibrahin, Leyva Pernia, Diana, E-mail: aleyva@ceaden.edu.cu, and others, and. 2013. "Electron and positron contributions to the displacement per atom profile in bulk multi-walled carbon nanotube material irradiated with gamma rays; Aporte de electrones y positrones al perfil de desplazamientos atomicos en materiales masivos de nanotubos de carbono de paredes multiples irradiados con rayos gamma." Cuba.
@misc{etde_22177320,
title = {Electron and positron contributions to the displacement per atom profile in bulk multi-walled carbon nanotube material irradiated with gamma rays; Aporte de electrones y positrones al perfil de desplazamientos atomicos en materiales masivos de nanotubos de carbono de paredes multiples irradiados con rayos gamma}
author = {Leyva Fabelo, Antonio, Pinnera Hernandez, Ibrahin, Leyva Pernia, Diana, E-mail: aleyva@ceaden.edu.cu, and others, and}
abstractNote = {The electron and positron contributions to the effective atom displacement cross-section in multi-walled carbon nanotube bulk materials exposed to gamma rays were calculated. The physical properties and the displacement threshold energy value reported in literature for this material were taken into account. Then, using the mathematical simulation of photon and particle transport in matter, the electron and positron energy flux distributions within the irradiated object were also calculated. Finally, considering both results, the atom displacement damage profiles inside the analyzed bulk carbon nanotube material were determined. The individual contribution from each type of secondary particles generated by the photon interactions was specified. An increasing behavior of the displacement cross-sections for all the studied particles energy range was observed. The particles minimum kinetic energy values that make probabilistically possible the single and multiple atom displacement processes were determined. The positrons contribution importance to the total number of point defects generated during the interaction of gamma rays with the studied materials was confirmed.}
journal = {Nucleus (Havana)}
issue = {53}
journal type = {AC}
place = {Cuba}
year = {2013}
month = {Jul}
}