Course syllabus

Acceleratorer och frielektronlasrar
Accelerators and Free Electron Lasers

EXTN95, 7,5 credits, A (Second Cycle)

Valid for: 2020/21
Decided by: PLED N
Date of Decision: 2020-03-27

General Information

Elective for: F4, F4-aft
Language of instruction: The course will be given in English


The aim of the course is to give deepened knowledge in the physics of accelerators and experience in both calculations and modeling of accelerator systems. In addition the course aims at providing a fundamental understanding of the Free Electron Laser and its accelerator systems.

Learning outcomes

Knowledge and understanding
For a passing grade the student must

Competences and skills
For a passing grade the student must


The course focuses on accelerators for synchrotron radiation production (linear accelerators and synchrotrons), their mode of operation and layout and how their properties connect to different areas of use.
Different accelerator components are analyzed (electron guns, linear accelerators, storage rings, diagnostics). The theory for magnets (dipole, quadrupole and general magnets) and how these are used in beam dynamics (particle optics, focusing, matrix formalism, betatron oscillations, beta functions, betatron tunes, emittance etc.) is described. This is used to build simulation models of accelerators. Basic notions of beam instabilities are presented. Synchrotron radiation sources and characteristics are described in more details.
The Free Electron Laser (FEL) process and different types of FELs (SASE, cavity FEL, harmonic generation, high gain harmonic generation and seeding) are analyzed and the physics behind amplification is described.

Examination details

Grading scale: UV - (U,G,VG) - (Fail, Pass, Pass with Distinction)
Assessment: Examination with written and oral components, passed laboratory excercise and hand-in exercises. Participation in the experimental work is compulsory. The final grade for the course is determined by the aggregated results of the different parts of the examination.

The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.


Assumed prior knowledge: EXTF90 Photon and Neutron Production for Science.
The number of participants is limited to: No
The course might be cancelled: If the number of applicants is less than 5.

Reading list

Contact and other information

Course coordinator: Sverker Werin,
Course coordinator: Francesca Curbis,
Course homepage:
Further information: The course is given by the Faculty of Science and does not follow the study period structure.