BUNCH COMPRESSION USING THE TRANSPORT LINE AND SHORT BUNCH REVOLVING IN NEWSUBARU

The electron bunches was compressed to a few picoseconds rms by the transport line from SPring-8 linac to NewSUBARU storage ring (NewSUBARU). And the compressed bunch was circurated for some tens of turns after injection while maintaining the short bunch length in the NewSUBARU. The NewSUBARU was set to a quasiisochronous condition. Bunch length in the NewSUBARU was measured the streak camera and maicrowave detector. There data was not accord by the deformation of the bunch structure.