| Title |
Observation of Dark Current Dependence on Stored Energy in an L-Band RF Gun |
| Authors |
- J.H. Shao, H.B. Chen, J. Shi, D. Wang
TUB, Beijing, People's Republic of China
- S.P. Antipov, S.V. Baryshev, C.-J. Jing, J.Q. Qiu
Euclid TechLabs, LLC, Solon, Ohio, USA
- M.E. Conde, D.S. Doran, W. Gai, W. Liu, J.G. Power, C. Whiteford, E.E. Wisniewski
ANL, Argonne, Illinois, USA
- F.Y. Wang, L. Xiao
SLAC, Menlo Park, California, USA
|
| Abstract |
A pin cathode has been installed into an L-band photocathode gun to study the influence of stored energy on field emission. The stored energy was varied by tuning the recess of the cathode in order to have the same E-field on the cathode tip. We have observed 5 times difference of dark current level at the same E-field, while by varying the stored energy by three fold. Dynamics study reveals the difference is not caused by transmission, but by emission process itself. We'll present experiment results and discuss possible mechanisms about the phenomena.
|
| Paper |
download WEPMN016.PDF [1.015 MB / 4 pages] |
| Export |
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| Conference |
IPAC2015, Richmond, VA, USA |
| Series |
International Particle Accelerator Conference (6th) |
| Proceedings |
Link to full IPAC2015 Proccedings |
| Session |
Wednesday Posters (Monroe) |
| Date |
06-May-15 16:00–18:00 |
| Main Classification |
7: Accelerator Technology |
| Sub Classification |
T06 - Room Temperature RF |
| Keywords |
cathode, gun, solenoid, experiment, simulation |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Stuart Henderson (ANL, Argonne, IL, USA); Evelyn Akers (Jlab, Newport News, VA, USA); Todd Satogata (JLab, Newport News, VA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-168-7 |
| Published |
June 2015 |
| Copyright |
|
