Author: Bruni, C.
Paper Title Page
TUP018 Design of a S-Band 4,5 Cells RF Gun 850
 
  • R. Roux, C. Bruni, H. Monard
    LAL, Orsay, France
 
  Most of radio-frequency (RF) photo-injectors operating in the world are made of 1,5 or 2,5 cells. Although excellent qualities of electron beam have been obtained there are few cases where the extension of the number of cells could be interesting. For instance, the small accelerators with energy in the range of 10-20 MeV which are mostly based on the operation of a RF gun with a booster. One single RF gun fulfilling both functions would simplify the construction and the cost of such machines. The inherent simplicity would also ensure a better reliability. We will present 2D and 3D RF simulations of this 4,5 cells RF photo-injector. In addition we will compare through beam dynamics simulations, with the PARMELA and ASTRA codes, the performances of this gun with respect of classical design based on the couple RF gun plus booster.  
 
WEP210 Low Energy Beam Measurements Using PHIL Accelerator at LAL, Comparison with PARMELA Simulations 1885
 
  • J. Brossard, F. Blot, C. Bruni, S. Cavalier, J-N. Cayla, A. Gonnin, M. Joré, P. Lepercq, S.B. Letourneur, B.M. Mercier, H. Monard, C. Prevost, R. Roux, A. Variola
    LAL, Orsay, France
 
  PHIL (“PHoto-Injector at LAL") is a new electron beam accelerator at LAL. This accelerator is dedicated to test and characterize electron RF-guns and to deliver electron beam to users. This machine has been designed to produce and characterise low energy (E<10 MeV), small emittance (e<10 p.mm.mrad), high brilliance electrons bunch at low repetition frequency (n<10Hz). The first beam has been obtained on the 4th of November 2009. The current RF-gun tested on PHIL is the AlphaX gun, a 2.5 cell S-band cavity designed by LAL for the plasma accelerator studies performed at the Strathclyde university. This paper will present the first AlphaX RF-gun characterizations performed at LAL on PHIL accelerator, and will show comparisons between measurements and PARMELA simulations.