Secondary electron emission data of cesiated oxygen free high conductivity copper

Because of its relevance for negative hydrogen ion sources, the change in secondary electron emission with the adsorption of Cs on Cu was studied. Properly prepared disks of oxygen free high conductivity OFHC.copper yielded a maximum secondary electron emission dmaxs1.54"3%. The deposition of f0.5 monolayer of Cs resulted in dmaxs3.40 "3%. q1999 Elsevier Science B.V. All rights reserved