TY  - CONF
AU  - Bilani, Orkidia
AU  - Neumann, Paul
AU  - Schoeps, Andreas
AU  - Tripathi, Sumit
AU  - Vagin, Pavel
AU  - Vielitz, Thorsten
AU  - Tischer, Markus
TI  - Magnetic Tuning of FLASH2 Undulators
CY  - Geneva
PB  - JACoW, Geneva, Switzerland
M1  - PUBDB-2015-00050
SN  - 978-3-95450-132-8
SP  - 1235-1237
PY  - 2014
AB  - The present fixed-gap undulator system for FLASH1 and the new FLASH2 undulators will share the same electron beam accelerator, thus 12 variable gap undulators are needed in order to provide radiation of different wavelengths to both experimental halls independently. Each of the 12 devices has a length of 2.5m. The magnet structure with a period length of 31.4mm provides a maximum field of 0.96T with an effective K-parameter of 2.81 at minimum gap. Phase, vertical and horizontal trajectories have been tuned based on Hall probe and stretched wire measurements. Remaining multipoles were optimized with moderate gap dependence by using magic fingers. At some magnet structures, shims were placed to correct gap dependent field integrals. All undulators have an rms vertical and horizontal trajectory flatness
T2  - International Particle Accelerator Conference IPAC
CY  - 15 Jun 2014 - 20 Jun 2014, Dresden (Germany)
Y2  - 15 Jun 2014 - 20 Jun 2014
M2  - Dresden, Germany
KW  - Accelerator Physics (Other)
KW  - 07 Accelerator Technology Main Systems (Other)
KW  - T09 Room Temperature Magnets (Other)
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
DO  - DOI:10.18429/JACoW-IPAC2014-TUPRO084
UR  - https://bib-pubdb1.desy.de/record/205486
ER  -