Energy-recovery linacs are inherently energy-efficient because the RF power needed for
acceleration is recovered during deceleration. Energy recovery enables extremely high …

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 …

The successful development in the last two decades of X-ray free electron lasers (FELs) with
their revolutionary brightness performance has been tightly dependent on the parallel …

Future electron accelerator applications such as X-ray free electron lasers and colliders are
dependent on significantly increasing beam brightness. With the observation that linac beam …

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 radio-frequency photoelectron injector (SRF photoinjector), now under
commissioning at the SEALAB accelerator test facility, has the potential to cover a fast area …

The success of proposed high power free-electron lasers (FELs) and energy recovery linac
(ERL) largely depends on the development of the electron source, which requires the best …

Two niobium elliptical 1.3 GHz superconducting radio frequency (SRF) electron
photoinjector cavities were successfully recovered after mechanical inner surface damage …

An upgraded version of DC-SRF photocathode injector (DC-SRF-II) is under development at
Peking University. The goal is to achieve an emittance below 0.5 mm-mrad at the bunch …

Superconducting radio-frequency (SRF) cavities are one of the most important elements in
modern particle accelerators as they are used for beam acceleration, bunch manipulation …