As is well known, the quality of the photocathodes is essential for the stability and reliability
of photoinjector operations. Especially for superconducting radio frequency photoinjectors …

A dependable and consistent electron source is a crucial requirement for the achievement of
high-power free electron lasers (FELs). Over the past two decades, it has been …

The superconducting Darmstadt linear electron accelerator (S-DALINAC) has been
operated as an energy recovery linac (ERL) for the first time. The S-DALINAC is a …

Ultrafast electron diffraction techniques that employ relativistic electrons as a probe have
been in the spotlight as a key technology for visualizing structural dynamics which take …

Abstract Helmholtz-Zentrum Berlin (HZB) is currently constructing a high average current
superconducting (SC) ERL as a prototype to demonstrate low normalized beam emittance of …

Operation of superconducting radio frequency (SRF) cavities with high loaded quality factors
is becoming increasingly preferred for applications which involve low beam loading …

This work shows the results obtained with a novel modified active disturbance rejection
control (MADRC) algorithm when controlling the detuning of a 9-cell TESLA …

Linear accelerators (linacs) use alternating radiofrequency (RF) electromagnetic fields to
accelerate charged particles in a straight line. Linacs were invented about 95 years ago and …

Abstract PERLE (Powerful Energy Recovery LINAC for Experiment) is a three turns high-
power Energy Recovery LINAC (ERL) facility with 20 mA beam current and beam energy …

Abstract The goal of Berlin Energy Recovery Linac Project (BERLinPro) is the generation of
a 50 MeV, 100-mA low emittance (below 1 mm mrad) CW electron beam at 2 ps rms bunch …