IPAC'25 - the 16th International Particle Accelerator Conference

Magnet assembly of IVUE32 in-vacuum-APPLE II at BESSY II

MOPS055

2 Jun 2025, 16:00

2h

Exhibiton Hall A _Salmon (TWTC)

Poster Presentation MC2.A05 Synchrotron Radiation Facilities Monday Poster Session

Speaker

Johannes Bahrdt (Helmholtz-Zentrum Berlin für Materialien und Energie)

Description

At HZB / BESSY II the first in-vacuum APPLE II undu-lator is under construction. The design includes three magnet arrays for each of the four magnet rows for an efficient force compensation. The support and drive sys-tem has been delivered. Currently the magnets for the 10-period prototype are fabricated by Vacuumschmelze. Within the project IVUE32 a new soldering technique based on reactive foils has been developed in collabora-tion with Vacuumschmelze. The magnet structure of the IVUE32 undulator will employ the soldering technique aiming for enhanced assembly simplicity. Two new ex-perimental setups for the characterization of soldered subassemblies have been built for obtaining stress-strain curves and for lifetime (fatigue) tests. These instruments will be presented and measurements will be discussed.