The relativistic electron gun for atomic exploration – REGAE – is an operating UED facility at DESY in Hamburg. The presentation will concentrate on the accelerator physics view. An overview of the facility layout, machine parameters, and operational aspects will be given. Development plans and options for the future operation of REGAE, as well as general development trends, will be discussed.
Due to their strong interaction, electrons are an ideal probe for investigating matter. Compared to commonly used 12 keV X-rays, 3 MeV electrons, as used at REGAE, provide 5 orders of magnitude stronger interaction in combination with three orders of magnitude reduced radiation damage effects. This makes electrons an ideal probe for thin samples and radiation-sensitive low-Z materials, such as...
Ultrafast electron probing modalities offer unique experimental tools to access the structural dynamics of ultrafast photoinduced processes in materials and molecules, in liquid, gas, and condensed phase systems. Here we propose to capitalize on the exceptional and versatile electron beam parameters of the SEALAB Superconducting RF (SRF) photoinjector to develop a world-wide unique facility...
The HZDR superconducting (SC) photoinjector with a 3.5-cell, 1.3 GHz SC niobium cavity and a SC solenoid, installed in a 2 K helium cryomodule, can produuce electron beams with beam energy up to 4 MeV. This gun would allow to setup a similar simple apparatus for MeV UED as the existing SLAC system with a normal-conducting cavity but now with very flexible pulse repetition rate up to a few MHz....
