Speaker
Description
The next generation of scientific research requires higher-energy and higher-flux X-rays to probe material properties with greater precision. This can be achieved by increasing the magnetic field and reducing the period length of undulators. Conventional undulators are limited by the magnetic remanence of permanent magnets, motivating the use of high-temperature superconducting (HTS) materials to enable higher fields and more compact designs. For example, several groups have investigated the use of HTS tapes for undulators with helical, meandering and racetrack coil configurations [1-3].
This presentation will discuss three HTS undulator concepts being explored at PSI to advance light-source performance. First, the progress of our flagship HTS bulk undulator will be presented. The experimental setup, comprising a meter-long solenoid and 200 HTS bulks, will be described, along with the efforts to optimize the on-axis magnetic field.
Two novel HTS tape-based undulator concepts will also be presented. The first, the Wind-and-Shape undulator, is currently being fabricated in collaboration with our partners in Japan and is planned for testing by the end of the year. The second, CASPLE (Compact Advanced Superconducting Polarized Light Emitter), is under development at PSI and aims to combine high magnetic fields with variable polarization, a key requirement for the SwissFEL+ upgrade.
[1] S. C. Richter, et al, IEEE Transactions on Applied Superconductivity, vol. 34, no. 3, pp. 1-7, May 2024, Art no. 4101507
[2] Ibrahim Kesgin et al 2017 Supercond. Sci. Technol. 30 04LT01
[3] T Holubek et al 2017 Supercond. Sci. Technol. 30 115002
| Thematic blocks | Large Scale Accelerator Facilities, |
|---|---|
| Presentation form prefert | oral |