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Graduate Student Seminar - 09/30/2011

"Photocathodes, Gold, and the Flow of Cesium"

by Blake Riddick

Friday, September 30, 2011 -- 12:00 p.m.
Large Conference Room, 1207 Energy Research Facility

Advisor:  Professor Patrick O'Shea

The physics of photocathodes is an exciting field of research which is encouraged by the demand for high electron yield, long-lasting photocathodes in a wide variety of applications. Results from recent tests on cesiated gold will be presented. Cesium is a large focus of photocathode research, since a submonolayer coverage of cesium often helps to increase electron yield. However, this thin layer tends to be short-lived. A method of replenishing this cesium layer will be discussed, and the flow of cesium through a novel cathode design will be described.

For additional information about the IREAP Graduate Student Seminars, contact Kevin Schoeffler.

Return to the Graduate Student Seminars schedule.