Study of the stopping power of light ions (H+ and He+) in elements with high atomic mass and in compound samples

• Grant number: 13/09105-0
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: July 01, 2013
• End date: June 30, 2017
• Field of knowledge: Physical Sciences and Mathematics - Physics - Nuclear Physics
• Principal Investigator: Manfredo Harri Tabacniks
• Grantee: Marcos Vinicius Moro
• Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The study of energy loss of ions in materials (stopping power) is an important subject in physics, either fundamental or applied physics. Although much has already been done, there are still many open questions in the theoretical models, and lack of experimental data to verify and compare with existing models over a wider range of elements and beam energies. This work aims the development and the use of experimental techniques at the Ion Beam Material Analysis Laboratory of the University of Sao Paulo (LAMFI-USP), for the determination of the stopping power of H+ and He+ ions with energies between 100keV and 3MeV in samples with high atomic mass, such as Nb and Pd, and in compounds like SiC, SiO2 and TiO2 , in this case, to verify the applicability of Braggs rule. (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

MORO, M. V.; SILVA, T. F.; MANGIAROTTI, A.; GUIMARAES-FILHO, Z. O.; RIZZUTTO, M. A.; ADDED, N.; TABACNIKS, M. H.. Traceable stopping cross sections of Al and Mo elemental targets for 0.9-3.6-MeV protons. Physical Review A, v. 93, n. 2, FEB 8 2016. (13/09105-0)

ROTH, D.; BRUCKNER, B.; MORO, M. V.; GRUBER, S.; GOEBL, D.; JUARISTI, J. I.; ALDUCIN, M.; STEINBERGER, R.; DUCHOSLAV, J.; PRIMETZHOFER, D.; et al. Electronic Stopping of Slow Protons in Transition and Rare Earth Metals: Breakdown of the Free Electron Gas Concept. Physical Review Letters, v. 118, n. 10, MAR 8 2017. (13/09105-0)

MORO, M. V.; BRUCKNER, B.; GRANDE, P. L.; TABACNIKS, M. H.; BAUER, P.; PRIMETZHOFER, D.. Stopping cross section of vanadium for H+ and He+ ions in a large energy interval deduced from backscattering spectra. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIO, v. 424, p. 43-51, JUN 1 2018. (13/09105-0)

MORO, M. V.; SILVA, T. F.; MANGIAROTTI, A.; GUIMARAES-FILHO, Z. O.; RIZZUTTO, M. A.; ADDED, N.; TABACNIKS, M. H.. Traceable stopping cross sections of Al and Mo elemental targets for 0.9-3.6-MeV protons. PHYSICAL REVIEW A, v. 93, n. 2, p. 17-pg., 2016-02-08. (13/09105-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

MORO, Marcos Vinicius. Energy loss of light ions (H+ and He+) in matter: high accuracy measurements and comparison with the FEG model. 2017. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Física (IF/SBI) São Paulo.