With over 30 000 accelerator infrastructures around the world, development of beam diagnostics has become a separate area of research in accelerator science. Such unique facilities as the Large Hadron Collider, synchrotron storage ring based light sources and X-ray free electron lasers continuously push the requirements for diagnostics equipment. These days an optimal beam monitoring devise is...
Radiation of charged particles moving in presence of dielectric targets is of interests for various applications in accelerator and beam physics [1, 2]. Typically, the size of the target is much larger than the wavelengths under consideration. This fact gives us an obvious small parameter of the problem (ratio between the wavelength and the target dimension) and allows developing approximate...
In the paper [1] authors presented results of the measurements of the optical Cherenkov radiation generated by 255 MeV electrons passing through an inclined diamond plate with a thickness 50 micrometers. They showed that intensity of the registered photons (a part only from the whole Cherenkov cone, which is extracted into vacuum from the inclined plate) is high enough for certain...
One of the significant limitations on the amplitude of the accelerating field in a dielectric wakefield accelerator is the head-tail drive bunch beam breakup (BBU) instability. In this report, we analytically and numerically investigate an arising and evolution of the BBU instability in a rectangular dielectric resonator when excited by a sequence of relativistic electron bunches. The...
Production and diagnostics of short electron bunches in modern particle accelerators are forefront issues. For example, in modern X-ray free-electron lasers the electron bunches are longitudinally compressed down to <100 fs to achieve high peak currents which is crucial to drive FEL process. Such a short bunch duration opens the possibility to use effect of coherent radiation for longitudinal...
