The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
| Title | Photoemission Properties of LaB6 and CeB6 Under Various Temperature and Incident Photon Energy Conditions | |||||
| Authors |
|
|||||
| Abstract | Recently, thermionic cathode materials such as LaB6, Ir5Ce and dispenser cathodes have been also used as photocathode since they have low work function, reasonably high quantum efficiency, and long lifetime*,**. However, the effect of cathode temperature and laser wavelength on quantum efficiency is known only for limited conditions. Although it is expected to be able to lengthen the required wavelength of photocathode drive laser by heating cathodes, laser with photon energy under the work function has not been tested. Revealing them enables us to design the cost minimum accelerators. In this research, photoemission properties of LaB6 and CeB6 with various excitation photon energies will be investigated under various temperatures of the materials. Those materials have similar work function, but CeB6 have one order of magnitude smaller Richardson constant than LaB6***. By comparing photoemission properties of these materials, impact of Richardson constant on the photoemission properties will be investigated. | |||||
| Footnotes & References | * S. Thorin et al. Proc of FEL2009, 310 ** D. Satoh et al. Proc of IPAC2014, 679 *** J.M. Lafferty, J. Appl. Phys. 22, (1951), 299 |
|||||
| Paper | download WEOAB03.PDF [0.620 MB / 3 pages] | |||||
| Slides | download WEOAB03_TALK.PDF [0.996 MB] | |||||
| Export | download ※ BibTeX ※ LaTeX ※ Text/Word ※ RIS ※ EndNote | |||||
| Conference | IPAC2016, Busan, Korea | |||||
| Series | International Particle Accelerator Conference (7th) | |||||
| Proceedings | Link to full IPAC2016 Proccedings | |||||
| Session | Contributed Orals, Particle Sources and Alternative Acceleration Techniques | |||||
| Date | 11-May-16 09:30–10:30 | |||||
| Main Classification | 03 Alternative Particle Sources and Acceleration Techniques | |||||
| Sub Classification | T02 Electron Sources | |||||
| Keywords | cathode, laser, photon, electron, vacuum | |||||
| Publisher | JACoW, Geneva, Switzerland | |||||
| Editors | Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Dong Eon Kim (PAL, Pohang, Republic of Korea); Kyung Sook Kim (PAL, Pohang, Republic of Korea); In Soo Ko (POSTECH, Pohang, Republic of Korea); Volker RW Schaa (GSI, Darmstadt, Germany) | |||||
| ISBN | 978-3-95450-147-2 | |||||
| Published | June 2016 | |||||
| Copyright |
|
