Speaker
Description
In the SPring-8-II project, a major upgrade of the synchrotron radiation facility SPring-8, numerous insertion devices (IDs) will be replaced by new ones such as the standard/tapered in-vacuum undulators for SPring-8-II (IVU-II) for hard x-rays, the helical 8 undulators for soft x-rays with variable polarizations, and damping wigglers for emittance control. Among these, the standard IVU-II will account for the majority, with about 30 units scheduled for installation. Mass production is underway, installation into the existing SPring-8 beamlines is also in progress, and several IVU-IIs are already under user operation. In this report, we will introduce the features of the new IDs listed above.
In addition to the unique magnetic circuit for force cancelation, the modularization of magnetic arrays employed in the IVU-II simplifies the assembly process of the magnetic arrays. With an assembly time much shorter than that for the previous IVU, the IVU-II meets the stringent specification required for SPring-8-II. In this presentation, the distinctive magnetic field tuning method of IVU-II will also be introduced, together with the measured results on the magnetic field performance of the developed IVU-II.
| Paper status | No proceeding expected for this contribution. |
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