Abstract
The Insertion Device group of the Paul Scherrer Institute has started an R&D program on a high temperature superconducting undulator to reduce the period length and increase the undulator's magnetic field well beyond the present capability. Simulation results for a 10 mm period and 4 mm magnetic gap staggered array of GdBCO bulks predict peak magnetic field above 2 T. Building on the existing working principle of undulator design and simulated performance, the first experimental results of a 5 period 6.0 mm gap short undulator measured in the new test facility available at the University of Cambridge will be presented together with details of the experimental setup and sample preparation.
Highlights
Third generation light sources [1] maximised the number of straight sections to insert wigglers and undulators [2] between the arcs of the ring, increasing the number and the quality of the synchrotron radiation sources beyond dipole magnets
This is at the origin of the name insertion devices regularly used in the accelerator community to indicate both instruments
Collaboration, PSI decided to investigate the staggered array conÞguration [21] following the design by Kinjo and co-workers [22, 23], where for the Þrst time it was proposed to implement HTS bulks in place of iron poles and/or permanent magnets [24], see Þgure
Summary
Third generation light sources [1] maximised the number of straight sections to insert wigglers and undulators [2] between the arcs of the ring, increasing the number and the quality of the synchrotron radiation sources beyond dipole magnets. Collaboration, PSI decided to investigate the staggered array conÞguration [21] following the design by Kinjo and co-workers [22, 23], where for the Þrst time it was proposed to implement HTS bulks in place of iron poles and/or permanent magnets [24], see Þgure The most e"ective procedure to obtain this result is to Þeld cool (FC) the HTS bulks in a superconducting solenoid.
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