GENERATION AND CHARACTERIZATION OF THE MICROBUNCHED BEAMS IN THE RANGE FROM 0.3 TO 500 FEMTOSECONDS

The recent results include formation and measurement of the micro bunch structures of the different time scales. Double beam structure produced and characterized at 100 fs – 0.5 ps range using beam splitting during compression in the magnetic chicane – “dog leg” arrangement. Arbitrary number of 10-50 femtoseconds micro bunches are sliced out of 5 ps long beam using wire mesh. CSR interferometer is used for detailed characterization of the beams in the two techniques above. 0.3 fs bunches are produced by IFEL and characterized by spectral measurements of the multiple harmonics. Presentation covers experimental results at Brookhaven Accelerator Test Facility.