Title :
Homogenization of an electron beam by scattering in an aluminum foil
Author :
Pepitone, K. ; Modin, P. ; Gardelle, J.
Author_Institution :
CESTA, CEA, Le Barp, France
Abstract :
Summary form only given. The electron beam of the pulsed diode RKA (500 keV, 30 kA, 110 ns) is emitted by field emission. To measure its spatial homogeneity, we study the beam impact on a fused-silica target. The resulting Cerenkov emission is analyzed by cameras. The experimental results are compared with the predictions of the Monte Carlo code Geant4. This software was chosen for its robust physics package and its capability of simulating Cerenkov emission. The initial conditions of the electrons in Geant4 are provided by the “MAGIC” code. In addition, we have used a high speed gated camera and several interference filters to obtain the Cerenkov spectrum. A comparison with the theoretical spectrum calculated by the formula of Tamm and Frank is given.
Keywords :
Cherenkov radiation; Monte Carlo methods; beam handling techniques; diodes; electron beams; electron sources; field emission; Cerenkov emission; Cerenkov spectrum; Geant4 Monte Carlo code; MAGIC code; RKA pulsed diode; aluminum foil; current 30 kA; electron beam homogenization; electron beam scattering; electron volt energy 500 keV; field emission; high speed gated camera; interference filters; robust physics package; time 110 ns; Aluminum; Cameras; Electron beams; Monte Carlo methods; Robustness; Scattering; Software;
Conference_Titel :
Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS), 2014 IEEE 41st International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4799-2711-1
DOI :
10.1109/PLASMA.2014.7012544
