Author/Authors :
Csatari Divall، نويسنده , , M. and Andersson، نويسنده , , A. and Bolzon، نويسنده , , B. and Bravin، نويسنده , , E. and Chevallay، نويسنده , , E. and D?bert، نويسنده , , S. and Drozdy، نويسنده , , A. and Fedosseev، نويسنده , , V. and Hessler، نويسنده , , C. Rouland-Lefèvre، نويسنده , , T. and Livesley، نويسنده , , S. and Losito، نويسنده , , R. and Mete، نويسنده , , ?. and Petrarca، نويسنده , , M. and Rabiller، نويسنده , , A.N.، نويسنده ,
Abstract :
The future Compact Linear Collider (CLIC) e−/e+ collider is based on the two-beam acceleration concept, whereby interleaving electron bunches of the drive beam through a delay loop and combiner rings as well as high peak RF power at 12 GHz are created locally to accelerate a second beam, the main beam. One of the main objectives of the currently operational CLIC Test Facility (CTF3) is to demonstrate beam combination from 1.5 GHz to 12 GHz, which requires satellite-free fast phase-switching of the drive beam with sub-ns speed. The PHIN photo-injector, with the photo-injector laser, provides flexibility in the time structure of the electron bunches produced, by direct manipulation of the laser pulses. A novel fiber modulator-based phase-switching technique allows clean and fast phase-switch at 1.5 GHz. This paper describes the switching system based on fiber-optic modulators, and the measurements carried out on both the laser and the electron beam to verify the scheme.
Keywords :
Photo-injector , Fiber , Laser , Sub-harmonic bunching , Fiber-optic modulator , Phase-switching
