Tuesday, July 12, 2005, 10:30 am — Seminar Room, Bldg. 725
Coherent synchrotron radiation (CSR) in Tera-Hz region was observed at NewSUBARU, 1GeV storage ring. We detected three types of CSR from three types of the beam in the storage ring. One was the radiation burst from a high current single-bunched beam. The burst had a threshold current of 1.0 nC/bunch. The second was the steady state radiation from a low current but very short bunched beam. The ring was operated in a quasi-isochronous (low alpha) mode. The bunch current was as low as 1 pC/bunch and the bunch length was as short as 4ps FWHM. The third was the radiation pulse from the linac beam in the storage ring at just after the injection. The short bunched linac beam, with a base width of 20ps and a charge of 50pC/bunch, circulated in the ring and emitted an extremely strong short-pulsed CSR.
Hosted by: Boris Podobedov
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