 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 OpportunitiesWith 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. | In the frame of Isotope and Muon Production using Advanced Cyclotron and Target Technologies (IMPACT) project, three new beamlines will be built at PSI in the High-Intensity Proton Accelerator Complex (HIPA). Two of these lines foresee the increase of the muons production rate by a factor 100, allowing a significant improvement of the quality of the experiments. These lines are solenoid-based and the assessment of the solenoid magnetic axis is a crucial point for the magnets alignment in the beamline. For the series production, the main system for axis measurements is a field mapper based on a 3D Hall probe transducer. Field mapping measurements of large aperture solenoids is a time-consuming task. The typical uncertainty of the axis assessment is 200 μm, enough for the alignment of the device in the machine. However, axis measurements using another technique would be useful for cross validation. In this regard, a new method based on sliding fluxmeters can provide a fast and reliable way of measuring a solenoid’s axis with improved accuracy. An important component of such a system is the actuator for the longitudinal motion of the fluxmeter. The main requirement is to achieve high speed for best SNR with minimal vibration to avoid spurious signal.
In the framework of the implementation of a new measurement bench based on the sliding fluxmeter, the objective of the work is the design of the high-speed actuator for solenoids measurements with sliding fluxmeter. The main tasks related to the internship are:
• Review of the existing solutions
• Define the requirements for the new actuator
• Mechanical design of the tool
• If required carry out simulations to assess immunity to vibrations
• Prepare 2D drawings for manufacturing
• Commissioning of the SW on the new vibrating wire bench | 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
| Noise from wind turbines can potentially affect the health of surrounding ecosystems and the human population. However, the potential adverse effects of wind turbine noise are often mitigated by proper planning, including setbacks from residential areas, strategic wind farm placement, and noise reduction technologies. Hence, research is needed to understand the specific effects of wind turbine noise on ecosystems and human populations and develop appropriate mitigation strategies. - Engineering and Technology
- 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
| To assess the overall contribution of the hydrogen economy components towards net zero energy economy we need to perform the life cycle impact assessment of the hydrogen-based power production systems. - Environmental Engineering, Interdisciplinary Engineering, Materials Engineering, Mechanical and Industrial Engineering, Other, Resources Engineering
- Master Thesis, Semester Project
| Global 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.
As part of this project, 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 (https://greenfjord-project.ch/). The main task will be to analyse the freshly created data to understand the complex puzzle of atmospheric aerosol sources.
You will use state-of-the art mass spectrometers to shed light into the chemical composition of aerosol particles. 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
| 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
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