Department of Physics and Astronomy

Accelerator Physics

Courses

1FA330, Accelerator Physics and Technology

We discuss the inner workings of high-energy particle accelerators and synchrotron radiation facilities. We cover the physics of charged particle beams subjected to magnetic systems for guiding and focussing, the radio-frequency system for acceleration, and a large number of different sensors to diagnose the state of the beam and various actuators to control it.

            Syllabus

1FA589, Optics and Photonics

The course gives a solid introduction to the fundamentals of optics and photonics and covers emission, amplification, transmission, detection and application of light in a wide range of the electromagnetic spectrum – from the X-ray, over the visible, to the infrared and terahertz ranges. The course consists of three main parts: basics of optics; propagation of light in media and guiding systems; quantum lasers and free-electron lasers. The first part embraces basic concepts and methods of optics such as wave–particle duality, interference, coherence, diffraction, optical beams. The second part deals with the propagation of waves in lenses, waveguides, optical fibers and media. The third part presents the interaction of photons with matter, statistics of photon gas, Einstein theory of the atom-photon interaction, laser amplification and individual types of quantum lasers. Several types of radiation from moving charged particles such as Cherenkov, transition and undulator radiation are discussed as well.

Syllabus

Nordic Particle Accelerator Program

We organize the NPA Schools in collaboration with ESS, MAX Laboratory and Lund University.

NPA

International Accelerator Schools

We offer some restricted possibilities for students to participate in the JUAS and USPAS accelerator schools.

JUAS

USPAS

(PGF5336, University of Sao Paulo)
Physics of undulator radiation and free electron lasers (FEL)

The course embraces the physical concepts of dynamics of electrons in magnetic fields of undulators, undulator radiation, bunching of electrons and lasing in FELs. In particular, in the course we discuss electromagnetic radiation from a charge moving with acceleration; using trajectories of electrons in an undulator and Feynman’s formulas for retarded fields, we derive fundamental properties of undulator radiation from the first principles. Then, we proceed to a description of a collective behaviour of electrons in an FEL and how the emitted field reacts back on the electrons. This coupling changes the properties of the ensemble of electrons and gives rise to the emergence of coherence. The key results are derived analytically from the first principles. In addition, at lectures and in home assignments students use numerical simulation codes to study the FEL physics in more detail.

PGF5336

Project Works and Theses

We offer project work and theses related to topics in and around accelerators. A few completed topics are shown as examples. The presently available topics are shown at

Degree Projects

Project work (1FA565 and 1FA566)

Some examples of completed projects are

Bachelor theses (1FA195)

Some examples of completed projects are

Master theses (1FA193)

Some examples of completed projects are

PhD and Licentiate theses

Some examples of completed and/or ongoing theses are

  • Beam Based Diagnostics of RF Breakdown
  • Beam Momentum changes due to Discharges in High-gradient accelerator structures
    http://www.diva-portal.org/smash/record.jsf?pid=diva2:660614
  • Emittance and Energy diagnostics for electron beams with large momentum spread
    http://www.diva-portal.org/smash/record.jsf?pid=diva2:615189
  • Non-linear beam dynamics with octupolar fields (ongoing)
  • A new model for beam dynamics with space-charge (ongoing)
  • Optimization of RF Systems with Coupled Superconducting Accelerating TEM Cavities (ongoing)
  • Detection and Analysis of Uncontrolled Beam Loss in the High Luminosity LHC (ongoing)
  • Microwave kW-level solid-state power amplifiers and combiners (ongoing)