Measurement of the orbit parameters at SOR-RING

Author

Kudo, Hirofumi ; Shinoe, Kenji ; Takaki, Hiroyuki ; Koseki, Tadashi ; Ohkuma, Haruo ; Kamiya, Yukihide

Author_Institution

Inst. of Solid State Phys., Tokyo Univ., Japan

fYear

1993

fDate

17-20 May 1993

Firstpage

1509

Abstract

In the 1992 summer shutdown, beam position monitors (BPM´s) have been installed in SOR-RING as one of the R&D´s for the future plan of a VUV high-brilliant source. They have been also aimed at measuring the closed orbit of the ring and correcting it by beam steerings that have been also installed at the same time as the BPM´s. With these systems, we measured the closed orbit distortion (C.O.D.) at the first time since the ring had been constructed. Horizontal and vertical C.O.D.´s were then corrected within 1 mm by exciting the steerings and changing the RF frequency. We also measured the other orbit parameters such as betatron and dispersion functions, chromaticity and RF-cavity parameters. Moreover, it was proved in a recent machine study that SOR-RING is capable of accelerating the electrons up to 450 MeV or more from the present energy of 380 MeV

Keywords

beam handling techniques; electron accelerators; particle beam diagnostics; storage rings; synchrotron radiation; 450 MeV; RF frequency; SOR-RING; VUV high-brilliant source; beam position monitors; beam steerings; betatron functions; closed orbit; closed orbit distortion; dispersion functions; horizontal COD; orbit parameters; vertical COD; Damping; Distortion measurement; Electron beams; Extraterrestrial measurements; Magnets; Physics; Radio frequency; Solid state circuits; Structural beams; Synchrotrons;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.308563

Filename

308563