The first generation of S-band injectors for free-electron lasers has illustrated high reliability
and performance by driving the latest generation of high brightness machines. However, the …

The SwissFEL Injector Test Facility operated at the Paul Scherrer Institute between 2010
and 2014, serving as a pilot plant and test bed for the development and realization of …

Microbunching instability is a well-known phenomenon that may deteriorate the
performance of accelerators. The instability may be triggered by a shot-noise mechanism or …

The design of a photoinjector, in particular that of the electron source, is of central
importance for free electron laser (FEL) machines where a high beam brightness is required …

Linear colliders are an attractive platform to explore high-precision physics of newly
discovered particles. The recent significant progress in advanced accelerator technologies …

With the high accelerating gradient, radiofrequency (rf) gun has a significant feature of
suppressing the growth of transverse emittance caused by space charge. Field emission …

This thesis covers three RF structures that form part of the linear accelerator for the CLARA
Free Electron Laser test facility project. The first structure is the RF photoinjector. The design …

Colliders have revolutionized fundamental physics by unveiling the resonant building blocks
and forces of nature. Colliders take two general designs, in circular colliders, the particles …

Abstract CompactLight is a Design Study funded by the European Union under the Horizon
2020 research and innovation funding programme, with Grant Agreement No. 777431 …

The installation of a load-lock chamber attached to the RF photoinjector gives the possibility
to carefully prepare the metallic cathodes under vacuum and also to use semiconductor …