Speaker
YuanYuan Qin
(Tsinghua University)
Description
In this paper, beam dynamics simulations in a compact 200 kV DC electron gun at Tsinghua University are carried out and pm·rad-scale low normalized transverse emittance is obtained in the preliminary results. Small emission areas and low initial electron energies contribute to the generation of beams with low transverse emittance. We used electrochemical etching to fabricate tips for cold field emitters and got several regularly shaped tips with a small radius of curvature of the apex in some attempts. We anticipate that sharp tips in high-gradient electron guns can provide high-quality electron beams for different applications, e.g. high spatial resolution electron microscopy.
| Region represented | Asia |
|---|---|
| Paper preparation format | LaTeX |
Author
YuanYuan Qin
(Tsinghua University)
Co-authors
Yian Wang
(Tsinghua University)
Yingchao Du
(Tsinghua University)
Zhichao Dong
(Tsinghua University)
