Magnetic Measurement Developments for Undulators

Vagin, Pavel; Tischer, Markus; Neumann, Paul

doi:10.18429/JACoW-IPAC2014-WEPRO034

Contribution to a conference proceedings/Contribution to a book

PUBDB-2015-00047

Magnetic Measurement Developments for Undulators

Vagin, P. (Corresponding Author)DESY* ; Neumann, P.DESY* ; Tischer, M.DESY*

2014
JACoW, Geneva, Switzerland Geneva
ISBN: 978-3-95450-132-8

Proceedings of the 5th Int. Particle Accelerator Conf., IPAC2014, Dresden, Germany
International Particle Accelerator Conference IPAC, IPAC 2014, Dresden, Germany, 15 Jun 2014 - 20 Jun 2014 Geneva : JACoW, Geneva, Switzerland 2016-2018 (2014) [10.18429/JACoW-IPAC2014-WEPRO034]

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Please use a persistent id in citations: doi:10.18429/JACoW-IPAC2014-WEPRO034 doi:10.3204/PUBDB-2015-00047

Abstract: FLASH2 is an extension of the present VUV-FEL facility at DESY. It includes a separate tunnel with a 12 x 2.5m = 30m long planar hybrid undulator. The undulators have 31.4mm period length and 1T field at a minimum gap of 9mm. The paper presents recent progress in the magnetic measurements of these undulators. Several specific details of the measurement tools will be discussed like peculiarities in the Hall probe calibration and noise, positioning accuracy and synchronization of voltage measurement with probes movement during scan, noise issues of various voltage integrators for stretched wire and search coil measurements.

Keyword(s): Accelerator Physics ; 02 Synchrotron Light Sources and FELs ; T15 Undulators and Wigglers

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