|WEP059||Characterizing a Coherent Electron Source Extracted From a Cold Atom Trap||469|
Funding: The National Natural Science Foundation of China under Grant No. 11875227.
In order to generate a fully coherent free electron laser (FEL) within a compact system, one approach is to interact a coherent electron bunch with a high power laser operating in the quantum FEL regime. The coherent electron source is obtained by ionizing the Rydberg atoms in a magneto-optical trap (MOT). The qualities of the electron source will have direct effects on the brightness, coherence, and line width of the free electron laser. A high quality ultra-cold electron source is obtained by carefully optimizing the extraction electrode structure, the acceleration and focusing system as well as the MOT. Through parameter optimization, a coherent electron source with a temperature lower than 10 K is obtained. Details of the optimization and the characteristics of the coherent electron source are reported in this paper.
|DOI •||reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2019-WEP059|
|About •||paper received ※ 24 August 2019 paper accepted ※ 10 September 2019 issue date ※ 05 November 2019|
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