6.0 MeV u-1 carbon ion (C6+ and C4+)-induced secondary electron emission from water vapour

Authors
Ohsawa, D.; Tawara, H.; Soga, F.; Galassi, Mariel Elisa; Rivarola, Roberto Daniel
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
Theoretical calculations of the DDCSs were made for C6+ ions using the continuum distorted wave-eikonal initial state model (CDW-EIS) in its straight-line version of the impact parameter approximation, showing general good agreement with experimental data, except in the intermediate- and high-energy region. On the other hand, the single differential cross section (SDCS), which was obtained by integrating the measured DDCSs over the solid angle, showed fairly good agreement with the CDW-EIS in the low-energy region, while a significant discrepancy between the observed SDCS and the Rudd-model scaling can be seen,suggesting that a simple -scaling law (i.e. first Born approximation) is not applicable for bare projectiles such as C6+ ions. The SDCS of C4+ ions was observed to be smaller than that of C6+ ons by 50% in the low-energy region (due to the screening effect of its bound electrons in C4+ ions, which could be explained quantitatively by taking account
Fil: Ohsawa, D.. Kyoto University. Radioisotope Research Center; Japón
Fil: Tawara, H.. National Institute for Fusion Science; Japón
Fil: Soga, F.. National Institute of Radiological Sciences; Japón
Fil: Galassi, Mariel Elisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Rivarola, Roberto Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Subject
IONIZATION
WATER
CARBON IONS
Física Atómica, Molecular y Química
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/5945