Speaker
Description
Time resolved crystallography of biological systems has become increasingly popular with the development of X ray Free Electron Lasers. In addition to X rays, high quality electron beams can also be used for diffraction. However, the large lattice constant of protein crystals poses strict requirements on the transverse emittance of the electron beam. The ultracold electron source is a significant advance in the quest towards low emittance electron beams. By using laser cooled Rb atoms as the electron source, a source temperature in the order of 10 K can be obtained, which can enable a normalized emittance of 1 nm-rad at 1 fC bunch charge. We outline our progress towards commissioning of the 100 keV hybrid DC-RF injector based on the ultracold electron source. This design aims to bridge the gap between electron microscopy and high brightness photoinjectors; with the goal of building a robust instrument for time-resolved electron diffraction experiments of complex molecules.
Funding Agency
JH: Marie Sklodowska-Curie grant agreement No. 101066850
JH: Branco Weiss Fellowship - Society in Science, administered by the ETH Zurich
| Paper status | No proceeding expected for this contribution. |
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