Pedro Luis Grande, Federal University of Rio Grande do Sul/Brazil

23. August 2024, 10:00 until 11:00

Pedro Luis Grande, Federal University of Rio Grande do Sul/Brazil

Seminar

Exploring Ion Scattering, Electronic Excitations and Straggling for Advanced Understanding of Materials

This presentation explores scattering analysis, stopping, and straggling to deepen our understanding of ion interactions with matter, which is potentially relevant to a wide array of fields, spanning from nuclear physics to material science and particle therapy. Ion scattering with hydrogen (H) and helium (He) at 100- 200 keV enables the analysis of advanced materials at a nanometer scale. In particular, the examination of nanoparticles (NPs) will be emphasized. Stopping power, which measures the energy loss by charged particles, is crucial for predicting particle behavior in ion beam analysis. We discuss various models, ranging from ab initio calculations to simpler ones, that can accurately predict stopping power. Moreover, straggling, the statistical spread of energy loss, presents challenges in precise particle beam applications and offers insights into more complex energy loss processes.

Biographie:
Pedro Luis Grande holds a Ph.D. in Physics from the Federal University of Rio Grande do Sul and has completed postdoctoral studies at the Hahn-Meitner Institute in Berlin and the Australian National University in Canberra. He is a full professor at the Federal University of Rio Grande do Sul and coordinates the Ion Implantation Laboratory at IF-UFRGS. His research focuses on Collision Processes and Interactions of Atoms and Molecules, particularly in energy loss, ion implantation, and material modification using ion beams. With extensive experience in these areas he is recognized for his expertise and leadership in ion irradiation and materials analysis.

Calendar entry

Event location

SEM.R. DB gelb 05 B
1040 Wien
Wiedner Hauptstraße 8-10/E134

Organiser

IAP
Manuela Marik
marik@iap.tuwien.ac.at

Public

Yes

Entrance fee

Registration required

December

2024

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Pedro Luis Grande, Federal University of Rio Grande do Sul/Brazil

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