Title :
The 10 keV injector for the University of Maryland Electron Ring Project
Author :
Godlove, T. ; Haldemann, P. ; Kehne, D. ; Bernal, S. ; Chin, P. ; Kishek, R. ; Li, Y. ; Reiser, M. ; Venturini, M. ; Wang, J.G. ; Zhang, W.W. ; Zou, Y. ; Haber, I.
Author_Institution :
FM Technol. Inc., USA
Abstract :
The 10 keV, 100 mA, Pierce-type electron gun and injector for the University of Maryland Electron Ring (UMER) Project are described. Using a pulsed control grid located 0.15 mm from the 4-mm radius cathode, 100-ns bunches are generated. The A/K gap is variable, producing beam currents ranging from 50 to 160 mA. A rotatable aperture plate is included to allow six different masks, including a pepperpot. Beam current after the aperture plate is measured with a built-in Rogowski coil. The injector line consists of a solenoid lens, five printed-circuit quadrupoles, and two in-line diagnostic chambers. A separate, multi-purpose chamber is placed at the end of the injector line during gun characterization studies for emittance, profile, and energy analysis
Keywords :
electron accelerators; electron guns; electron sources; particle beam injection; storage rings; 10 keV; A/K gap; Electron Ring Project; Pierce-type electron gun; Rogowski coil; University of Maryland; aperture plate; beam currents; diagnostic chambers; emittance; injector; pepperpot; printed-circuit quadrupoles; profile; pulsed control grid; solenoid lens; Apertures; Cathodes; Coils; Current measurement; Electric variables control; Electrons; Lenses; Mesh generation; Pulse generation; Solenoids;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.794331
