Photocathode Physics for Photoinjectors Workshop

Session

Session 3 - Photoemission Physics I: Theory

13 Oct 2010, 08:30

Instrumentation Division, Bldg. 535B, Room A-122 (Brookhaven National Laboratory)

Description

The first talks in this session provide a concise introduction into the subject, identify physics behind Spicer Model from Metals, then its extension to semiconductors, importance of the surface, and to provide the basis for physics carried on in Session 4.

Contribution list Timetable

12. Modeling of Photoemission

Kevin Jensen (NRL)

13/10/2010, 08:30

40 min. talk/5 min. questions To cover metals, antimonides, tellurides, NEA.

13. Physics of Semiconductor NEA Photocathodes

Charles Sinclair (Cornell Univ.)

13/10/2010, 09:15

30 min. talk/5 min. questions

15. Photoemission Emittance

John Schmerge (SLAC)

13/10/2010, 09:50

30 min. talk/5 min. questions

16. Discussion

13/10/2010, 10:40

Discussion charge: Is 3 step Spicer model sufficient to explain practical photocathodes? If not, what are the limitations? pros/cons of each family--what knobs exist to tune the performance: QE vs. wavelength, better lifetime, faster response, lower thermal emittance; what physics parts are poorly understood and need a better theory effort; semiconductor properties needed for quantitative...

17. In-room Lunch

13/10/2010, 12:30