The cavity-based X-ray free-electron laser (XFEL) has promise in producing fully coherent
pulses with a bandwidth of a few meV and very stable intensity, whereas the currently …

Radiation-based techniques for measuring electron source sizes are widely used as
emittance diagnostics at existing synchrotron sources. Three of these techniques, namely …

The advent of low-emittance synchrotron X-ray sources and free-electron lasers urges the
development of novel diagnostic techniques for measuring and monitoring the spatial …

An electron beam position and angle monitoring system, ps-BPM, has been shown to be
able to measure the electron source position and angle at a single location in a beamline at …

The recently developed vertical phase-space beam position and size monitor (ps-BPM)
system has proven to be able to measure the electron-source position, angle, size and …

Rigorous dynamical theory calculations show that four-beam diffraction (4BD) can be
activated only by a unique photon energy and a unique incidence direction. Thus, 4BD may …

Measuring the electron source size is essential for determining the emittance of synchrotron
radiation. Pinhole imaging is the most common technique which measures the source profile …

One of the most critical parameters in synchrotron radiation (SR) experiments is the stability
of the photon energy, which is primarily affected by the stability of the light source and the …

A phase space beam position and size monitor (ps-BPM) system was introduced previously
to measure the electron source vertical position and angular motion along with the vertical …

We analyze experimental evidence regarding the speed of propagation of Coulomb and
magnetic forces. In addition to well-known studies by Ishii, Ranfagni, Kholmetskii and …