Accelerator Physicist at FERMI (# of positions: 2)

Website elettrasincro Elettra Sincrotrone Trieste

Deadline: 16 October 2020
Ref: CA/20/30

Company description:

Elettra Sincrotrone Trieste is an international multidisciplinary research center operated as a user facility, featuring a 2.0/2.4 GeV, third-generation synchrotron light source (Elettra), a new free-electron laser light source (FERMI) and a variety of support laboratories. The extremely high quality of the machines and beamlines has set new performance records and has been producing results of great scientific and technological interest. See for more information.

Beamline / Project / Activity description:

Unique among the FEL sources currently operating in the ultraviolet and soft x-ray range worldwide, FERMI has been developed as an externally seeded FEL to provide fully coherent and highly reproducible ultrashort (20-100 femtosecond) pulses with a peak brightness ten billion times higher than that made available by third-generation light sources. FERMI is opening unique opportunities for exploring the structure and transient states of condensed matter, soft matter and low-density matter using a variety of diffraction, scattering and spectroscopy techniques. The research activities in FEL and Accelerator Physics are performed, both theoretically and experimentally, to exploit the present capabilities offered by the machine and to develop new upgrades to the machine complex and new schemes for FEL generation.

The main upgrade consist in an extension the FELs spectral range down to the oxygen K-edge on the fundamental harmonic and to 1 keV photon energy at the higher order harmonics.

This upgrade will involve the two FELs at FERMI, FEL-1 and FEL-2. The upgrade design for  FEL-1 is in progress. An Echo Enabled Harmonic Generation scheme will be implemented on FEL-1 to extend the operating range of FEL-1 to include the 60-120 eV photon energy range. This upgrade will also allow in depth studies of the possibilities offered by the EEHG scheme and will pave the way for the upgrade of FEL-2 aimed at reaching for the first time the Oxigen k-edge energy target (530-550 eV) on an externally seeded Free Electron Laser.

See for more information.

Job description:

Two positions are open for accelerator physicists to participate in the R&D activities at the FERMI facility (A and B, respectively).

The selected candidate A), will be involved in the team work aimed to the upgrade of FEL-1, with the assignment of specific responsibilities on one of the upgrade components. The selected candidate will also be coordinating the experimental activity on the studies of beam dynamics, FEL dynamics and microbunching instability made possible by the upgraded layout of FEL-1. These studies will be propaedeutic for the FEL-2 upgrade.

The selected candidate B) will be in charge of coordinating the design and simulation work devoted to the photon energy upgrade of FEL-2. His responsabilities will also include proposing and carrying out new measurements on the existing linac and FELs, aimed at better defining the best strategy for the upgrade of FEL-2 to reach the 500 eV photon energy range.

Both candidates will also be involved in the experimental activities of FERMI becoming a member of the FERMI Machine Physics team. They will be asked to provide their competence in tuning and running the FERMI FEL-s to set-up the machine for user beamtimes and to be involved in the cutting edge research carried out during the external user beamtimes.

They  will collaborate with the physics staff in the development of new concepts to enhance the capability and performance of the FERMI FELs and will contribute to the research and development of experiments with the x-ray FEL to advance the frontiers of physics. They will be involved in the operation of the facility and are expected to contribute to its further developments. They will be encouraged to develop and strengthen links with accelerator physics specialists from other international facilities.


A Ph.D. in Physics or a related discipline is required as well as experience in accelerator and FEL physics.

Knowledge of accelerator design and beam dynamics codes, beam instrumentation, programming skills (Python, IDL, C++, Labview or Matlab) would be an important asset.

Good time management skills and ability to prioritize are expected, together with the ability to interact with staff and facility users and to work as part of a multi-disciplinary team.
Good oral and written communication skills in English are essential.

A working knowledge of the Italian language is desirable, but is not required.

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