570009 VU Synchrotron X-ray methods to characterize contaminant speciation and solid phases in soils (2025S)
1.00 ECTS (1.00 SWS), SPL 57 - Doktoratsstudium Biologie mit Schwerpunkt Mikrobiologie und Umweltsyste
Continuous assessment of course work
Labels
Registration/Deregistration
Note: The time of your registration within the registration period has no effect on the allocation of places (no first come, first served).
- Registration is open from We 04.06.2025 10:25 to Th 03.07.2025 18:00
- Deregistration possible until Th 03.07.2025 18:00
Details
max. 20 participants
Language: English
Lecturers
Classes
• MO 07.07.2025 10.00-10.45 Seminarraum Geochemie 2C193 1.OG UZA II
• DI 08.07.2025 10.00-11.30 Seminarraum Geochemie 2C193 1.OG UZA II
• MI 09.07.2025 10.00-11.30 Seminarraum Geochemie 2C193 1.OG UZA II
• DO 10.07.2025 10.00-11.30 Seminarraum Geochemie 2C193 1.OG UZA II
• FR 11.07.2025 10.00-11.30 Seminarraum Geochemie 2C193 1.OG UZA II
• MO 14.07.2025 10.00-11.30 Seminarraum Geochemie 2C193 1.OG UZA II
• DI 15.07.2025 10.00-11.30 Seminarraum Geochemie 2C193 1.OG UZA II
• MI 16.07.2025 10.00-11.30 Seminarraum Geochemie 2C193 1.OG UZA II
• DO 17.07.2025 10.00-11.30 Seminarraum Geochemie 2C193 1.OG UZA II
Information
Aims, contents and method of the course
This graduate-level course will cover all aspects of synchrotron-based X-ray absorption spectroscopy (XAS) for the analysis of minerals and inorganic contaminant speciation in soils and sediment. Students should have a background in soil science, environmental science, environmental engineering or a related discipline. Prior synchrotron experience is not a requirement, but having previously-collected XAS data that can be analyzed in the course is helpful.The objective of the course is to expose students to 1) fundamental principles of XAS, 2) applications of XAS in environmental and soil science, 3) securing beam time via proposal submission, 4) XAS sample preparation and data collection, and 5) different methods of XAS data analysis. The course will be taught via in-person lecture format in two modules. The first module (approximately half of the course) will focus on XAS fundamentals and will follow key course material, including “Analysis of Soils and Minerals Using X-ray Absorption Spectroscopy”, which will be provided by the instructor. The second module will be hands-on exercises of XAS data processing and analysis using the open source XAS program, SixPack. During the course, students will be introduced to a final assignment, which is described below, and students will have the opportunity to discuss the assignment with the instructor.
Assessment and permitted materials
The course assessment will be based on a final written project as well as attendance and participation in the hands-on XAS data processing and analysis module. No in-person examination is included in the course. The final student project will consist of a short 1-2 page written document that can be selected depending on the students’ preference. Option 1) A beam time proposal following the template of a synchrotron of choice. Option 2) A report that presents data processing and analysis using XAS data already collected by the student or provided by instructor. This report will include plotted figures derived from the XAS analysis, which will be covered in the course lectures.If the students choose to write a beam line proposal for the final project (Option 1), the students must demonstrate knowledge of the content of a beam line proposal, which will be covered in module 1 of the course. If the students choose to write a report on XAS data processing and analysis (Option 2), the students must demonstrate the ability to background-subtract raw XAS data and analyze the processed data, which will be covered in module 2 of the course. For the final project, any resources can be used (provided by the course or otherwise obtained). The time break-down of the course (24 hours total) is expected to be approximately 12-14 hours for in-person lectures and approximately 10-12 hours for the final project to be completed outside of lecture time.
Minimum requirements and assessment criteria
If the students choose Option 1 for the final project, a positive assessment will be given based on fulfilling the writing requirements of a beam line proposal (e.g., scientific background, experimental plan). If the students choose Option 2 for final project, a positive assessment will be given based on successful processing and analysis of XAS data, such as linear combination fits of XANES spectra, as well as a clearly written report of analysis results.
Examination topics
Assessment is based on a written final report, in addition to course attendance and participation. Therefore, no formal examination is required. The students must learn how to describe the scientific background and experimental plan of an XAS experiment, which will be included in the beam line proposal for Option 1 of the final project. The students must learn how process and analyze XAS data for Option 2 of the final project.
Reading list
The course will be supported by the following text: “Analysis of Soils and Minerals Using X-ray Absorption Spectroscopy” by S. D. Kelly, D. Hesterberg, B. Ravel. This text is available for download on the course website.
Association in the course directory
PhD, MES-5
Last modified: Tu 10.06.2025 13:07