A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

Gouin, B.

Paper Title Page
TUPC071 Computer-assisted Electron Beam Centroid Characterization at AIRIX Facility 1212
 
  • O. Mouton, M. Caron, D. Collignon, H. Dzitko, B. Gouin, G. Grandpierre, D. Guilhem, L. Hourdin, C. Noel, O. Pierret
    CEA, Pontfaverger-Moronvilliers
 
  AIRIX is a high current accelerator designed for flash X-ray radiography. The electron beam produced into a vacuum diode (2 kA, 3.5 to 3.8 MV, 60 ns) is extracted from a velvet cold cathode. For a beam characterisation we have seen* how to calculate the mean beam divergence (X'(0),Y'(0)), the RMS beam size (XRMS(0), YRMS(0)) as well as the 2D transverse beam emittance (ex(0),ey(0)). To have a complete initial characterization of the beam, we have to further calculate the centroid initial position (xc, yc) and its initial divergence (xc', yc'). In this aim, we use experimental results at BPM's located downstream the initial position of the cathode, and we also use the TRAJENV code coupled with the MINUIT minimization library. In this paper, we propose to describe both experimental and theoretical approaches leading to the full beam characterization (beam size, centroid position and divergence) at the diode output.

*O. Mouton & al. "Computer assisted Electron Beam Characterization at AIRIX Facility," PAC'07, Albuquerque (USA).