| Title |
Physics design and dynamic simulation of a C-band photocathode electron gun for UEM |
| Authors |
- T. Chen, W. Li, Y.J. Pei, Zh. X. Tang
USTC/NSRL, Hefei, Anhui, People’s Republic of China
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| Abstract |
For discovering structure at atomic scale and getting more details of chemical material and biological tissue, an ultrafast electron microscopy (UEM) has been developed and applied in plenty of subjects and studies. This paper described a C-band photocathode electron gun which will be working at 5712MHz to produce ultrashort electron beams with better dynamic parameters. The RF gun is using coaxial coupler to decrease the size of the gun and keep better symmetry of the field in the photocathode gun so that the beam emittance and energy spread can be reduce a lot. The photocathode rf gun will be a important part of the ultrafast electron microscopy (UEM). Using CST MWS and superfish code to simulate design the gun. After dynamic simulation, the beam parameters as the following: Energy is of 3MeV, Normal emittance of 0.12mm-mrad in boin direction, energy spread is of 5.8·10⁻⁴, which are better enough for an UEM.
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| Paper |
download MOPO029.PDF [0.654 MB / 4 pages] |
| Poster |
download MOPO029_POSTER.PDF [3.599 MB] |
| Export |
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| Conference |
LINAC2018 |
| Series |
Linear Accelerator Conference (29th) |
| Location |
Beijing, China |
| Date |
16-21 September 2018 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Guoxi Pei (IHEP, Beijing, China); Volker RW Schaa (GSI, Darmstadt, Germany); Yong Ho Chin (KEK, Tsukuba, Japan); Shinian Fu (IHEP, Beijing, China); Ning Zhao (IHEP, Beijing, China) |
| Online ISBN |
978-3-95450-194-6 |
| Online ISSN |
2226-0366 |
| Received |
11 September 2018 |
| Accepted |
22 September 2018 |
| Issue Date |
18 January 2019 |
| DOI |
doi:10.18429/JACoW-LINAC2018-MOPO029 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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