We demonstrate our idea to circulate a short and intense linac bunch for some tens of turns in an isochronous ring. We compressed the SPring-8 linac bunch to a few pico-seconds rms by means of the energy compression system (ECS) and the beam trans...
PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS 9(4) 2006年4月 [査読有り]
This paper reports a new method of measuring the bunch-by-bunch energy profile of a linear accelerator (linac) electron beam, using a dual-sweep streak camera in the storage ring. This method records the evolution of the time profile in the storag...
IEEE Transactions on Applied Superconductivity 14(2) 441-444 2004年6月 [査読有り]
NewSUBARU, a 1.5 GeV storage ring, has a magnetic pulse septum to inject a 1 GeV electron beam from the SPring-8 linac. Its maximum field is 0.36 T with waveform of 1 ms width half-sine. Behavior of a stored electron beam indicated an existence of...
IEEE Transactions on Applied Superconductivity 14(2) 453-456 2004年6月 [査読有り]
In special synchrotrons a controllable sextupole field is required in the bending dipole magnets. One of them is New-SUBARU, a 1.5 GeV synchrotron light source. It has inverse dipole (bending) magnets to control the linear momentum compaction fact...
Since beam commissioning the beam instability due to ion trapping phenomena has been occasionally observed in the 1.0-1.5GeV NewSUBARU electron storage ring. In this paper we summarize the photo stimulated desorption of gas molecular and the measu...
SYNCHROTRON RADIATION INSTRUMENTATION, PTS 1 AND 2 879 327-+ 2007年
The synchrotron radiation facility NewSUBARU is a 1.5 GeV storage ring which has two long straight sections. A permanent magnet, planar-type, out-of-vacuum 10.8 m Long Undulator is placed in one of the long straight sections. The longitudinal mome...
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