Beam-Based Design of a Correction Coil for the Stray Field of a Pulse Septum Magnet

Mitsui, Takayuki; Matsubara, Takahiro; Hisaoka, Yoshinori; Shoji, Y.

doi:10.1109/tasc.2008.920606

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2019

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“…Similar studies were already carried out earlier at New-SUBARU storage ring but the corresponding report [8] is concentrated on the measured leakage field compensation while the measurement technique is not presented in details. In this paper we discuss the problems and precision of mapping leakage field distribution at the level of several Gauss that is less than 10 −3 of septum guiding field.…”

Section: Introductionmentioning

confidence: 95%

Beam-based mapping of pulsed septum stray field at VEPP-2000 collider

Shwartz

Koop

Lyalin

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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Various beam-based methods are widely used for machine study and accurate tuning. Beam closed orbit (CO) responses are routinely used worldwide for magnetic elements alignment and lattice correction. The paper presents the beam-based field mapping technique, applied for measurement of pulsed septum magnet stray field at VEPP-2000 electron-positron collider. Relatively slow pulse of weak leakage field disturbs the CO allowing detecting field longitudinal integral. While scanning with transverse coordinate in wide range one can measure the field map of the localized perturbation at machine in situ.

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Section: Introductionmentioning

confidence: 95%