Commissioning experience with two in-vacuum undulators at PETRA III. Issue 1 (1st December 2022)

• Record Type: Journal Article
• Authors: Schöps, A; Vagin, P; Keil, J; Tischer, M
• Is Part Of: Journal of physics. Volume 2380 Issue 1(2022)
• Publication Date: 2022-12-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/2380/1/012021
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: In 2018 the high energy X-ray beamlines P07[1] and P21b[2] at DESY's storage ring PETRA III received new undulators. The two identical devices were built by an industry collaboration of Research Instruments GmbH and Kyma S.p.A. according to DESY's specifications. They have a magnetic length of 4 m, a period length of 21.2 mm and a deflection parameter K of 1.41 at a gap of 7.0 mm. We report about experience during magnet tuning, the final acceptance measurements and the commissioning in the accelerator tunnel.