Irene Martini awarded PhD degree
Irene Martini, former LA3NET Fellow hosted by CERN, successfully defended her PhD at Politecnico di Milano. Her thesis on Characterization of Cs-Sb chatodes for high charge RF photoinjectors raised the interest of the final exam committee members who asked a number of questions.
The main goal of Irene’s PhD thesis is to provide a comprehensive experimental investigation of the use of this delicate material for photoinjector applications. The experimental activities, devoted to asses the feasibility of producing high quality Cs3Sb cathodes, include production by thin film deposition and characterization of the photoemissive properties in a DC gun beam line. The performance of Cs-Sb photocathodes was tested in a high charge RF photoinjector setup allowing to measure their main features. X-ray photoelectron spectroscopy analyses were used to correlate the measured photoemissive properties with the cathode composition as well as to investigate the cathode deterioration observed during operation. A close comparison with the Cs2Te cathodes performance is also discussed. The study of Dr. Martini represents a step forward in the development of photocathodes for applications in high charge RF photoinjectors, providing a valuable characterization of the Cs-Sb photocathode performance.
Irene is happy to share this news with the LA3NET community and she would like to acknowledge the support she has received during the 3 years of her research project.
Congratulations, Irene!