Abstract
Measurements of the thermal emittance of an electron beam produced by photoemission from the copper cathode of a high power RF cavity are presented. The RMS normalized emittance has been measured as a function of laser spot size, applied surface field, and polarization of the laser beam at normal incidence. Local field enhancement due to surface effects is found to increase the emittance substantially beyond that expected for a perfect planar surface.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of the IEEE Particle Accelerator Conference |
| Editors | P Lucas, S Webber |
| Pages | 2227-2229 |
| Number of pages | 3 |
| Volume | 3 |
| State | Published - 2001 |
| Externally published | Yes |
| Event | 2001 Particle Accelerator Conference - Chicago, IL, United States Duration: Jun 18 2001 → Jun 22 2001 |
Other
| Other | 2001 Particle Accelerator Conference |
|---|---|
| Country | United States |
| City | Chicago, IL |
| Period | 6/18/01 → 6/22/01 |
ASJC Scopus subject areas
- Engineering(all)
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Cite this
Graves, W., DiMauro, L. F., Heese, R., Johnson, E. D., Rose, J., Rudati, J., Shaftan, T., & Sheehy, B. (2001). Measurement of thermal emittance for a copper photocathode. In P. Lucas, & S. Webber (Eds.), Proceedings of the IEEE Particle Accelerator Conference (Vol. 3, pp. 2227-2229)