Applied Physicist

Job Posting Organization:
CERN, the European Organization for Nuclear Research, is at the forefront of scientific research and technological innovation. Established in 1954, CERN has grown to become one of the world's largest and most respected centers for scientific research, employing over 2,500 staff members and hosting thousands of scientists from around the globe. The organization operates in multiple countries, with its headquarters located in Geneva, Switzerland. CERN's mission is to push the boundaries of knowledge and understanding of the universe, fostering an environment of collaboration and innovation among physicists, engineers, and other professionals.

Job Overview:
The position of Applied Physicist at CERN focuses on the interaction of charged particle beams with their surroundings, specifically in the context of improving accelerator components such as cavities, kickers, and beam instrumentation equipment. The successful candidate will engage in electromagnetic simulations using tools like CST or similar software to validate the design of new accelerator components and propose modifications to existing ones. This role is crucial for ensuring the performance of CERN's accelerators, particularly the Proton Synchrotron (PS) and the Super Proton Synchrotron (SPS), which are integral to the injector chain for the Large Hadron Collider (LHC). The position requires a strong understanding of beam coupling impedance and the ability to conduct RF measurements to complement simulation results. Collaboration with beam physicists and other teams is essential to propose improvements and validate findings.

Duties and Responsibilities:
The duties and responsibilities of the Applied Physicist include:

• Building models for electromagnetic simulations of accelerator components to study their interaction with charged particle beams.
• Actively proposing improvements to reduce beam coupling impedance based on simulation results.
• Performing RF measurements to validate the accuracy of simulations and ensure the reliability of accelerator components.
• Collaborating closely with beam physicists and teams responsible for accelerator components to enhance overall performance.
• Engaging in continuous learning and adaptation of new techniques and methods in RF simulations and measurement.
• Participating in discussions and meetings to share findings and contribute to the collective knowledge of the team.

Required Qualifications:
Candidates must possess proven experience with electromagnetic theory and EM-simulation tools in the RF domain, such as CST or HFSS. A strong background in RF simulations, measurement techniques, and methods is essential. Additionally, an understanding of beam coupling impedance and knowledge of collective effects in accelerators is required. Familiarity with accelerator physics is considered an asset. Candidates should demonstrate a commitment to learning and improving their skills in both spoken and written English and French, with a willingness to learn the basics of the other language.

Educational Background:
The ideal candidate should have a professional background in RF Engineering, Applied Physics, or a related field. Candidates must hold 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. This educational background ensures that candidates have the necessary theoretical knowledge and practical skills to excel in the role.

Experience:
Candidates should have a minimum of 2 years of relevant professional experience in RF engineering or applied physics, with a maximum of 6 years for those holding a Master's degree. For PhD holders, no more than 3 years of post-graduation experience is required. This experience should include hands-on work with electromagnetic simulations and RF measurements, demonstrating the ability to apply theoretical knowledge in practical settings.

Languages:
Fluency in spoken and written English is mandatory, while proficiency in French is also required. Candidates should be committed to learning the basics of the other language to facilitate effective communication within the diverse CERN community.

Additional Notes:
The position is fully onsite and involves a contract duration of 24 months, with the possibility of extension up to a maximum of 36 months. The working hours are set at 40 hours per week, with flexibility required for work in radiation areas, interventions in underground installations, and potential stand-by duty. Candidates may be required to work during nights, Sundays, and official holidays as needed by the organization. The compensation includes a monthly stipend ranging from 6372 to 7004 Swiss Francs, tax-free, along with 30 days of paid leave per year, comprehensive health insurance coverage, family allowances, and a relocation package depending on individual circumstances.