Title :
First energy spectra obtained with a time-of-flight (TOF) electron spectrometer on Cs2Te photocathodes
Author :
Michelato, Paolo ; Monaco, Laura ; Sertore, Daniele ; Schreiber, Siegfried
Author_Institution :
LASA, INFN Milano, Segrate, Italy
Abstract :
The first electron energy spectra obtained from a Cs2Te photocathode using a time-of-flight (TOF) spectrometer are presented and discussed in this paper. The high-resolution angle resolved TOF electron spectrometer has been developed at INFN Milano-LASA (theoretical resolution: 2 meV at 5 eV). The system has been designed for the investigation of the electron beam thermal emittance that is a key parameter for future generation FEL based high brilliance photon sources. The excitation light source is a short pulse solid-state Nd:glass laser (4th harmonic, τ=400 fs, λ=264 nm). In this paper the spectrometer is presented together with first measurements on different metals and Cs2Te
Keywords :
caesium alloys; electron spectrometers; photocathodes; tellurium alloys; time of flight spectrometers; 264 nm; 400 fs; 5 eV; Cs2Te; FEL based high brilliance photon sources; TOF electron spectrometer; electron beam thermal emittance; energy spectra; excitation light source; photocathode; short pulse solid-state Nd:glass laser; time-of-flight electron spectrometer; Cathodes; Electron beams; Energy resolution; Laser excitation; Laser theory; Light sources; Optical pulses; Solid state circuits; Spectroscopy; Tellurium;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.987403
