Researcher with specialization in high-power amplifiers for particle accelerators

Published: 2024-02-13

Are you interested in working with solid-state power amplifiers, with the support of competent and friendly colleagues in an international environment? Are you looking for an employer that invests in sustainable employee development and offers safe, favourable working conditions? We welcome you to apply for a researcher position at Uppsala University.

Uppsala University is a comprehensive research-intensive university with a strong international standing. Our ultimate goal is to conduct education and research of the highest quality and relevance to make a long-term difference in society. Our most important assets are all the individuals whose curiosity and dedication make Uppsala University one of Sweden’s most exciting workplaces. Uppsala University has over 45,000 students, more than 7,000 employees and a turnover of around SEK 7 billion.

The Department of Physics and Astronomy is hosting the FREIA Division responsible for the FREIA Laboratory, where the research will be conducted. The research at FREIA gears towards future particle accelerators and instrumentation. The FREIA laboratory operates complex equipment such as superconducting cryostats and microwave equipment for developing and testing particle accelerator equipment. Current projects are connected to, for example, the European Spallation Source (ESS), MAX IV, the High Luminosity upgrade of the LHC at CERN. FREIA is also engaged in the development of free-electron lasers, and a compact X-ray laser and instrumentation in Uppsala, and in the development of RF high-power amplifiers based on solid state transistors for particle accelerators.

Project description

FREIA is collaborating with ESS on the design, development, construction and testing of a 400 kW solid state amplifier at 352 MHz, to replace the tetrode-based power stations which are currently installed at ESS to power the spoke cavity section of the accelerator. The successful candidate will contribute to our efforts in advancing the field of particle accelerators by taking part in the work with completing and characterizing the prototype RF power station in close collaboration with ESS staff.

Duties

  • Lead the design and experimental efforts in the fabrication, assembly, and testing of microwave solid-state power amplifiers with power levels from 1 kW per module to 20 kW and more per amplifier.
  • Analyze experimental data and contribute to the interpretation of results, leading to writing and publishing scientific contributions in highly ranked journals and conferences.
  • Develop high-efficiency microwave power amplifiers.
  • Develop low-loss high-power microwave combiners.
  • Conduct feasibility studies leading from a conceptual design to a final demonstrator.
  • Present findings at conferences, workshops, and seminars to share knowledge and engage with the global scientific community, and to enhance knowledge dissemination and societal engagement.
  • Contribute to the writing of proposals for research grants.

Requirements

Applicants must have a doctoral degree in physics or electrical engineering, or equivalent. We are looking for a person with a very good microwave engineering profile. The candidate should have a proven experience with the development of high-power solid-state power amplifiers and power combiners; hands on measurements of modules at kilowatt level and power amplifiers. The candidate must have experience with the use of a vector network analyzer (VNA), software for calculating EM-fields like HFSS, CST or similar. Very good oral and written proficiency in English, as well as the capacity to work both independently and in a team, are requirements. The work will partially take place at ESS in Lund, Sweden, wherefore frequent travel will be required.

Additional qualifications
A demonstrated ability to apply for and obtain research grants from external sources is a merit. 

About the employment
The employment is a permanent position (probationary period may be applied). Scope of employment 100 %. Starting date 2024-03-01 or as agreed. Placement: Uppsala.

For further information about the position, please contact:

Dragos Dancila, e-mail: dragos.dancila@angstrom.uu.se, phone +46 72 366 31 80.

Please submit your application by 26 February 2024, UFV-PA 2024/541.

Are you considering moving to Sweden to work at Uppsala University? Find out more about what it´s like to work and live in Sweden.

Uppsala University is a broad research university with a strong international position. The ultimate goal is to conduct education and research of the highest quality and relevance to make a difference in society. Our most important asset is all of our 7,600 employees and 53,000 students who, with curiosity and commitment, make Uppsala University one of Sweden’s most exciting workplaces.

Read more about our benefits and what it is like to work at Uppsala University
https://uu.se/om-uu/jobba-hos-oss/

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Submit your application through Uppsala University’s recruitment system.

Deadline: 2024-02-26 at 23:59
Unit: Health/Life sciences

Read the job description at the university homepage or apply.