Specification of APS corrector magnet power supplies from closed orbit feedback considerations | Zendy

L. Emery | Zendy; G. Decker | Zendy

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Specification of APS corrector magnet power supplies from closed orbit feedback considerations

Author(s) -

L. Emery,

G. Decker

Publication year - 1991

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/106493

Subject(s) - physics , orbit (dynamics) , magnet , quadrupole , sigma , coupling (piping) , distortion (music) , phase space , prime (order theory) , beam (structure) , optics , atomic physics , mathematics , quantum mechanics , aerospace engineering , combinatorics , engineering , mechanical engineering , amplifier , optoelectronics , cmos

The goal of this report is to specify or confirm the strengths and resolutions of the corrector magnets and their power supplies. the photon beam must be stable to 5% of the phase space dimensions of the beam (10% of the emittance). Specification of the closed-orbit displacement in the insertion device appears in the CDR {Delta}{sigma}{sub x} < 16 {mu}m; {Delta}{sigma}{sub x{prime}} < 1.2 {mu}rad; {Delta}{sigma}{sub y} < 4.4 {mu}m; {Delta}{sigma}{sub y{prime}} < 0.45 {mu}rad. Global and local correction systems will remove DC and oscillatory components of the orbit distortion. The oscillatory orbit distortion is usually attributed to the ground motion coupling to the quadrupole supports, but one should not assume that ground motion is the unique source

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