 Paul Scherrer Institute| Acronym | PSI | | Homepage | http://www.psi.ch/ | | Country | Switzerland | | ZIP, City | | | Address | | | Phone | | | Type | Academy | | Current organization | Paul Scherrer Institute | | Child organizations | | | Memberships | |
Open OpportunitiesGlobal warming induces emissions changes in global ecosystems, for example changes to marine algal blooms, emerging terrestrial vegetation, increasing glacial dust or fires. At the same time human activities in the cryosphere cause emissions from traffic, domestic activities and animal herding. All these emissions change the composition of the atmosphere.
The main task of this project will be to analyse mass spectrometry data from Greenland or the Jungfraujoch, to understand the complex puzzle of atmospheric aerosol sources.
You will have the option to analyse aerosol filter samples in the lab, collected during different (ongoing) campaigns, like the GreenFjord project's atmospheric cluster in Greenland (https://greenfjord-project.ch/).
This work will be carried out at and with the team of the Laboratory of Atmospheric Chemistry at PSI, Switzerland. - Analytical Chemistry, Environmental Chemistry (incl. Atmospheric Chemistry)
- Internship, Lab Practice, Master Thesis
| For superconducting magnet applications in particle accelerators, a highly efficient cooling device working in cryogenic conditions is crucial. Pulsating Heat Pipes (PHPs) are promising candidates which, combined with a cryocooler, will cool superconducting magnets at cryogenic temperature (in this case ~30 K). The principle is to transfer heat from an evaporator to a condenser using phase change and oscillations of vapor bubbles and liquid slugs circulating in a serpentine tube. The visualization of this two-phase flow is an important tool to better understand, characterize and model cryogenic PHPs, which is the aim of this internship project.
Your tasks will include:
• Conduct a literature survey on the state of research on the visualization of cryogenic PHPs
• Develop or use a code for image processing of two-phase flow visualization (e.g. determination of the flow pattern, detection of vapor and liquid interfaces, estimation of filling ratios, film thickness, fluid velocities, dominant frequency of oscillation motions, correlation to thermal performance)
• Participate to experimentally visualize a transparent pulsating heat pipe at cryogenic temperature using neon as working fluid
• Analyze the results (e.g. image processing) and write an internship report - Engineering and Technology, Physics
- Internship
| The aim of this project is to develop a database and web-interface for the X-ray micro-fabrication team at PSI and ETHZ to track realized pieces, fabrication protocols and characterization of the products. - Computer Software, Information Systems
- Master Thesis
| The aim of this project is to develop a specific lithographic approach for the X-ray micro-fabrication team at PSI and ETHZ. - Biomedical Engineering, Medical Physics, Nanotechnology
- Master Thesis
| Investigate how best to unite Koopmans and Perdew-Zunger self-interaction corrections for electronic structure calculations. - Theoretical and Computational Chemistry, Theoretical and Condensed Matter Physics
- Master Thesis, Semester Project
| Investigate how best to unite Koopmans and Hubbard corrections for electronic structure calculations. - Theoretical and Computational Chemistry, Theoretical and Condensed Matter Physics
- Master Thesis, Semester Project
| Develop a plugin for the Jupyter-based AiiDAlab Quantum ESPRESSO app focused on calculating the work function of material surfaces. Ideal for students aiming to apply their coding skills and scientific knowledge to contribute to scientific software in material science research. - Software Engineering, Theoretical and Condensed Matter Physics
- Master Thesis, Semester Project
| With the observation of intra-beam scattering (IBS) in the SwissFEL injector and new understanding in how to model IBS, the question is whether for future electron sources do we need to rethink optimization process which generally aims to reduce the beam emittance and increase the peak current. This project will investigate the use of IBS in modelling of electron source, using the TW gun under development at PSI as an example, to understand whether there is a regime where the optimization process must consider IBS. For example, how the combined effect of IBS and beam size affects the slice energy spread in the waist of the emittance compensation scheme. During your trainee work you will be integrated into a small team to conduct numerical simulations of beam dynamics including IBS using existing tools. | The Center for Proton Therapy (CPT) at PSI is the world leader in the development and clinical implementation of pencil beam scanning proton therapy. We are looking for talented and motivated students with a background in physics, engineering and computer science to join our research program. - Engineering and Technology, Physics
- Bachelor Thesis, Master Thesis, Semester Project
| In these projects, the student will work on developing CLI/GUI tools that can facilitate workflow construction. This effort will be based on the established AiiDA WorkChain class, as well as the recently developed WorkGraph approach. - Software Engineering
- Master Thesis, Semester Project
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