Applied Physicist for Beam-beam and DA optimisation (BE-ABP-INC-2024-175-GRAP)
- Employer
- CERN
- Location
- Geneva, Switzerland
- Salary
- Unspecified
- Posting live until
- 6 Jan 2025
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Job Details
Full-time
Job Description
Your responsibilities
In this position you will work within the Accelerators and Beam Physics Group (ABP) in the Beams Department (BE), specifically within the Incoherent Effects Section (INC), which is responsible for theoretical, numerical and experimental studies and proposals for the mitigation of interleaved incoherent multi-particle effects (e.g. space charge, beam-beam, intra-beam scattering, e-cloud, cooling) affecting the performance of present and future circular accelerators.
This position is focused on optimising the dynamic aperture (DA) and beam-beam collisions of the HL-LHC. This is to be achieved through studying and improving magnet field quality (FQ) and sorting activities.
The selected candidate will work on the following topics:
- Study of sorting scenarios for the new HL LHC magnets with particular emphasis on prioritization of the sorting criteria (transfer function errors and field quality);
- Follow up of the quality of magnets (transfer function and field quality) in view of defining their slot allocation and assess of their impact on the machine dynamic aperture;
- Use the outcome from the sorting scenarios and slot allocation to study HL LHC operational scenarios in terms of dynamic aperture. The studies should naturally focus to the flattop luminosity production hence including beam-beam effects (e.g. luminosity levelling strategy, filling schemes and crab cavities configuration) together with the overall machine settings (tunes, chromaticity and octupoles);
- Analyse the impact of the aforementioned parameters (e.g., measured field quality, sorting scenarios, beam-beam effect, octupoles...) on the beam halo formation.
Your profile
Skills
- Knowledge in optics design;
- Numerical tools (python);
- Non-linear beam dynamics and incoherent effects for synchrotron rings and colliders;
- Fluent in English, the ability to work in French would be an advantage.
Eligibility criteria:
You are a national of a CERN Member or Associate Member State.
You have a professional background in Applied physicist (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.
Additional Information
Job closing date: 06 January 2025 at 23:59 (midnight) CET.
Contract duration: 24 months, with a possible extension up to 36 months maximum.
Working hours: 40 hours per week
Field of work: Applied Physics
What we offer
- A monthly stipend ranging between 6212 and 6828 Swiss Francs per month (net of tax);
- Coverage by CERN’s comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund;
- Depending on your individual circumstances: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract;
- 30 days of paid leave per year;
- On-the-job and formal training at CERN as well as in-house language courses for English and/or French.
About us
At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world’s largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature. Find out more on http://home.cern.
We are on a Quest. A Journey into discovery like no other. Bring your expertise to our unique work and develop your knowledge and skills at pace. Join world-class subject matter experts on unique projects, in a Quest for greater knowledge and deeper understanding.
Begin your CERN Quest. Take Part!
Diversity has been an integral part of CERN’s mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.
Company
At CERN, physicists and engineers use the world’s largest and most complex scientific instruments to study the basic constituents of matter – the fundamental particles – to probe the underlying structure of the universe.
Working at CERN
CERN is a truly unique organization. A genuine collaboration between countries, universities and scientists, driven not by profit margins, but by a commitment to create and share knowledge. At CERN, students, recent graduates and experienced professionals work together to push for immense scientific discoveries, answering some of life’s most complex questions and advancing the boundaries of human knowledge.
People are free to work creatively and to trust in, and rely on, their colleagues across the organization. History is being made at CERN – and the excitement is tangible, inspiring, overwhelming at times. It is the only place in the world that you can do this work in this way.
Why work for us
Today, CERN employs more than 2500 people, and if you visit us you will find more than 2500 different reasons why CERN is such a great place to work. Six key reasons that we believe will make you love working here are: challenge; purpose; imagination; integrity; collaboration; and quality of life.
Student and graduate schemes
CERN technical and administrative internships and graduate schemes offer international students and recent graduates the opportunity to work with world-class scientists and engineers on cutting-edge research in particle physics, computational science, life sciences, engineering, international relations, and more. Whichever route you take, it will be an extraordinary experience.
What we are looking for
To conduct experiments of this scale and importance, CERN needs people from various career levels and with a wide range of abilities, skills and competencies. We have job opportunities for students, graduates and experienced professionals, from apprenticeships to PhDs (and beyond). Whatever your background, field of interest or diploma level, CERN could be the place for you.
Location
Geneva, Switzerland
Number of employees
2500+ staff members; several hundred on graduate and student programmes
Positions recently recruited for
Computing engineer, radiofrequency engineer, process operator in cryogenics, web developer, mechanical engineer, administrative assistant, system administrator, power electronics engineer, scientific writer, applied physicist and many more
Desired degree disciplines/class
From apprenticeship to PhD in a wide variety of domains
How to apply
Apply online at careers.cern
Closing date
All year round
Contact
Tel +41 22 76 63 786
E-mail recruitment.service@cern.ch
careers.cern
- Website
- https://careers.cern/
- Telephone
- +41 22 76 63 786
- Location
-
Esplanade des Particules 1
PO Box 1211
Geneva 23
Switzerland
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