Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2000-12-05
Prepared for IEEE Particle Accelerator Conference (PAC 99), New York, NY, 29 Mar - 2 Apr 1999, pp 490-491
Physics
High Energy Physics
High Energy Physics - Experiment
2 pages, 2 figures. Talk given at the Particle Accelerator Conference (PAC99), New York, NY, 29Mar-2Apr 1999, pp 490-491 of PA
Scientific paper
We have made the first observation of a charged particle beam by means of its electro-optical effect on the propagation of laser light in a birefringent crystal at the Brookhaven National Laboratory Accelerator Test Facility. Polarized infrared light was coupled to a LiNbO3 crystal through a polarization maintaining fiber of 4 micron diameter. An electron beam in 10ps bunches of 1mm diameter was scanned across the crystal. The modulation of the laser light during passage of the electron beam was observed using a photodiode with 45GHz bandwidth. The fastest rise time measured, 120ps, was made in the single shot mode and was limited by the bandwidth of the oscilloscope and the associated electronics. Both polarization dependent and polarization independent effects were observed. This technology holds promise of greatly improved spatial and temporal resolution of charged particle beams.
Castillo V.
Kowalski Ludwik
Kraus D. E.
Larsen R. C.
Lazarus D. M.
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