Sincrotró ALBA
Victor Malka, researcher at Laboratoire d'Optique Appliquée, ENSTA-CNRS
Compact accelerators based on laser plasma cavities, which support hundreds of GV/m electric field, deliver today electron beam with unique parameters. In 2004 quasi mono-energeticelectron beams have been produced in the bubble regime by focusing intense laser beam in under-dense plasma targets. This efficient bubble regime of acceleration is now currently working in many laboratories over the world. In 2006 stable and quasi mono-energetic electron beams have been demonstrated at LOA using by colliding two laser pulses in under-dense plasma. This last approach is very promising for future applications because of the stability of the electron beams and the easy control of their parameters. The very high brightness and shortness (fs) make them very attractive for many applications.
I will present the different regimes of acceleration and relevant applications that have been recently considered at LOA: For medicine to treat the cancer by radiotherapy, for fundamental studies in radio-biology (short-time-scale), for chemistry (radiolysis in the femto-second range), for material science in automobile and aeronautic industries (for non-destructive dense matter inspection by g radiography), and finally for accelerator physics.