Magnetic Measurements of Superconducting Insertion Devices by Stretched Wire with Direct Current

Mezentsev, N. A.; Tsukanov, V. M.; Zorin, A. V.

doi:10.1016/j.phpro.2016.11.012

Cited by 7 publications

(2 citation statements)

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“…The stretched wire with direct current, introduced for the superconducting wigglers developed at BINP [33,34], uses the principle that a stretched wire with a DC I in a stationary magnetic field is moved. By measuring the vertical and horizontal change in position of the wire at the beginning and the end of the magnetic region (in figure 7 at z=d 1 and z=d 1 +d 2 +L), by for example two-coordinate laser micrometers, allows the measurement of the vertical and horizontal first and second field integrals simultaneously.…”

Section: Integral Field Measurementsmentioning

confidence: 99%

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A review of magnetic field measurements of full scale conduction cooled superconducting undulator coils

Casalbuoni¹

2018

Supercond. Sci. Technol.

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Synchrotron light sources employ undulators to produce brilliant photon beams. Most synchrotrons and all free electron lasers use undulators made by permanent magnets. Superconducting undulators can produce, for the same geometry, a higher peak magnetic field on axis with respect to permanent magnet ones, and have the additional advantage of being radiation hard. Recently superconducting undulators have been successfully applied in the Karlsruhe Institute of Technology synchrotron and in the Advanced Photon Source at the Argonne National Laboratory. While precise measurement techniques to characterize the magnetic field for permanent magnet undulators are well established, new developments have been necessary in the past few years to magnetically characterize superconducting undulators. After an introduction on undulators and the measurements needed to be performed before operating such devices with electron beams, this paper reviews magnetic field measurements of full scale conduction cooled superconducting undulator coils. Current and future methods used for the characterization of the magnetic field, after installation of such coils in the final cryostat, are also discussed.

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Section: Integral Field Measurementsmentioning

confidence: 99%

“…Both CuBe [33] and niobium titanium (NbTi) [34] wires have been used. The accuracy achieved of » -I 10 1 4 Tm and I 2 ≈10 −4 Tm 2 is not as good as what can be obtained with the moving wire method (see section 5.2).…”

Section: Integral Field Measurementsmentioning

confidence: 99%