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Jožef Stefan
International
Postgraduate School

Jamova 39
SI-1000 Ljubljana
Slovenia

Phone: +386 1 477 31 00
Fax: +386 1 477 31 10
Email: info@mps.si

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Course Description

Hydrogen Detection in Materials and in Gas Phase

Program

Sensor Technologies

Lecturers:

doc. dr. Sabina Markelj

Goals:

Objectives:
• knowledge and understanding the processes at hydrogen interaction with materials,
• analysis of the data measured by spectrometers for hydrogen detection, e.g. mass spectrometer, vibrational spectrometer,
• analysis the data measured by ion beam methods (ERDA and NRA) used to quantify the hydrogen concentration in material.

Competences:
• capability to determine the relevant processes for certain case of hydrogen interaction with material and to solve equations for given problem,
• mastering of software for simulation and analysis of spectra obtained by spectrometer for hydrogen detection and spectra obtained by ion beam methods,
• capability of choosing the most suitable method(s) for obtaining the needed information about hydrogen in material,
• applying project-given technological, systemic, temporal and financial constraints for the material analysis,
• ability of performing experimental measurement on one of the possible systems for hydrogen detection and analyses the data with the available tools.

Content:

• Hydrogen – atom/molecule: potential energy, cross sections for ionization.
• Interaction of hydrogen with materials: surface processes, adsorption, absorption in material, diffusion, thermal desorption.
• Hydrogen atom and molecule detection: production of atoms and excited molecules, sources, spectrometers, mass spectrometer.
• Hydrogen detection in materials with ion beam methods: Elastic Recoil Detection Analysis – ERDA; Nuclear Reaction Analysis – NRA; in situ measurements.
• Surface techniques for detection of hydrogen and surface impurities.
• Hydrogen in fusion: retention and recycling of hydrogen on walls of fusion devices.

Course literature:

Selected scientific publications in:
• Surface Science
• Journal of Chemical Physics
• Nuclear Instruments and Methods in Physics Research Section B
• Journal of Nuclear Material

Book:
• Dynamics of molecule surface interactions, G. D. Billing, John Willey and Sons, 2000, New York.
• Handbook of Modern Ion Beam Materials Analysis, Y. Wang, M. Nastasi, Cambridge University Press, 2010.

Significant publications and references:

Bibliographic record: 15 papers in WoS, 52 citations, 29 without self-citations, h-index 5.

Papers:
• S. Markelj, O. V. Ogorodnikova, P. Pelicon, Th. Schwarz-Selinger, I. Čadež, Temperature dependence of D atom adsorption on polycrystalline tungsten, Appl. Surf. Sci., 282 (2013) 478-486.
• S. Markelj, O. V. Ogorodnikova, T. Schwarz-Sellinger, P. Pelicon, K. Sugyama and I. Čadež, Study of thermal hydrogen atom interaction with undamaged and self-damaged tungsten, J. Nucl. Mater., 438 (2013) S1027-S1031.
• S. Markelj, P. Pelicon, I. Čadež, T. Schwarz-Selinger and W. Jacob, In situ study of erosion and deposition of amorphous hydrogenated carbon films by exposure to a hydrogen atom beam, J.Vac. Sci. Tech. A 30 (2012) 041601-1.
• S. Markelj, I. Čadež, Production of vibrationally excited hydrogen molecules by atom recombination on Cu and W materials, The Journal of chemical physics, 134 (2011) 124707-1-123707-17.
• S. Markelj, Z. Rupnik and I. Čadež, An extraction system for low-energy hydrogen ions formed by electron impact, International Journal of Mass Spectrometry, 275 (2008) 64-74.

Examination:

Seminar describing particular spectroscopy and its applications in a research field close to the candidate (30%)
Project of quantitative analysis of spectrum (20%)
Oral examination (50%)

Students obligations:

Seminar describing particular spectroscopy and its applications in a research field close to the candidate.
Project of quantitative analysis of spectrum.
Oral examination.

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