Accelerator Physicist

Job Posting Organization:
CERN, the European Organization for Nuclear Research, was established in 1954 and is one of the world's largest and most respected centres for scientific research. With over 2,500 employees and a diverse workforce from more than 100 nationalities, CERN operates in multiple countries across Europe. Its mission is to uncover the fundamental structure of the universe by studying the basic constituents of matter using the world's largest and most complex scientific instruments.

Job Overview:
The position of Accelerator Physicist within the Beams and Radio Frequency Studies (BR) Section of the Radio Frequency (RF) Group at CERN involves critical responsibilities in machine development studies for the Large Hadron Collider (LHC). The role focuses on RF commissioning during the heat run, which is essential for preparing operations with high-efficiency klystrons at HL-LHC intensities. The successful candidate will be tasked with executing and analyzing beam measurements, developing automated software tools for optimizing detuning and loaded quality factors, and contributing to the development of new algorithms for RF infrastructure during LS

• This position is pivotal in ensuring the efficient recommissioning of the RF system and requires a strong background in accelerator physics and beam dynamics.

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

• Carrying out detailed beam measurements to assess performance and optimize operations.
• Developing automated software tools aimed at optimizing detuning and loaded quality factors in 202
• Contributing to the development of new algorithms based on beam study results and embedding these into the control infrastructure, particularly for RF systems during LS
• Creating software tools to evaluate the performance of high-efficiency klystrons, including modeling for RF capture, acceleration, noise blow-up, and storage of HL-LHC beams.
• Performing comprehensive beam dynamics simulations focusing on intra-beam scattering, RF noise, and intensity effects.
• Collaborating with a multidisciplinary team to ensure the successful execution of machine development studies and the overall advancement of accelerator physics at CERN.

Required Qualifications:
Candidates must possess a professional background in Accelerator Physics or a related field. The ideal candidate will 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. Additionally, candidates should have experience in longitudinal beam dynamics, hardware calibration, beam measurements, control loop modeling, and a conceptual understanding of RF systems, including amplifiers and cavities. Proficiency in spoken and written English is mandatory, and a commitment to learning French is expected.

Educational Background:
The educational background required for this position includes a Master's degree or a PhD in Physics, specifically in Accelerator Physics or a closely related field. Candidates with a PhD will be prioritized, particularly those who have recently completed their studies and have relevant research experience in accelerator physics.

Experience:
The level of experience required for this position includes a minimum of 2 years of post-graduation professional experience for Master's degree holders, or up to 3 years for PhD holders. Candidates should have a proven track record in accelerator physics, particularly in areas related to beam dynamics and RF systems, as well as experience in conducting beam measurements and simulations.

Languages:
The mandatory language for this position is English, both spoken and written. Candidates are also expected to have a commitment to learning French, which is considered beneficial for integration into the CERN community and for effective communication within the organization.

Additional Notes:
The contract duration for this position is 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 a target start date of November 1, 202

• The position offers a competitive monthly stipend ranging from 6287 to 6911 Swiss Francs (net of tax), along with comprehensive health coverage for the employee and their family, membership in the CERN Pension Fund, and various allowances depending on individual circumstances. Employees are entitled to 30 days of paid leave per year, and there are opportunities for on-the-job and formal training, as well as in-house language courses.