Applied Physicist

Applied Physicist

CERN - European Organization for Nuclear Research

Geneva, Switzerland

Your responsibilities

Are you an Applied Physicist with a deep interest in materials and their properties as applied to particle accelerators?

We invite you to take on a pivotal role in investigating the electrodynamic impedance of materials and its influence on the design and performance of particle accelerator components. This includes beam-facing surfaces, which are integral to the accelerator vacuum system and its various parts.

In this project, you will engage in a wide range of activities, including the study of surface roughness, electrical conductivity, and superconductivity. Collaborating with leading experts from different CERN Departments, you will develop innovative tools to evaluate the electrodynamic properties of materials crucial for current and future CERN accelerators.

This initiative is part of a core study within CERN's Technology (TE) Department, specifically the Vacuum, Surfaces and Coatings (VSC) Group. Here, advanced thin film coatings and surface treatments are developed for beam-facing surfaces of vacuum chambers and other components. These innovations aim to manage vacuum properties and secondary electron yield. As a key team member, you will assess the impact on surface impedance by developing coaxial and dielectric resonators operating at cryogenic temperatures and multiple frequencies. This work will culminate in defining the optimal coating properties for each application.

A significant part of your role will involve running simulation codes to design test equipment and model accelerator components. You will validate these simulations through experimental measurements. Additionally, you will participate in projects focused on developing and evaluating superconducting thin film coatings, further enhancing our capabilities to test thin film samples.

Your profile

Skills

• Experience in material impedance testing;
• Knowledge of engineering design of accelerator vacuum components;
• Knowledge of (RF) superconductivity;
• Fluency in English, with the willingness to learn French.

Eligibility criteria

• You are a national of a CERN Member or Associate Member State;
• You have a professional background in Applied Physics (or a related field) and have either:
  • a Master's degree with 2 to 6 years of post-graduation professional experience; or
  • a PhD with no more than 3 years of post-graduation professional experience.
• You have never had a CERN fellow or graduate contract before.

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