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Magnet constructed and tested

I.FAST WP11 members

Abstract

IFAST Task 11.3 has designed and built a prototype permanent magnet-based dipole-quadrupole magnet, referred to as the HEPTO magnet, as an energy saving alternative to an equivalent electromagnet. This report summarises the construction characteristics of the prototype that will be tested within the same framework at the Daresbury Laboratory, and the results will be reported in deliverable 11.3.

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IFAST Innovation Fostering in Accelerator Science and Technology Horizon 2020 Research Infrastructures GA n° 101004730 MILESTONE REPORT Magnet constructed and tested MILESTONE: MS56 Document identifier: IFAST-MS56 Due date of milestone: End of Month 25 (May 2023) Justification for delay: Change of beneficiary Report release date: 16/10/2025 Work package: WP11 - Innovative Superconducting Magnets Lead beneficiary: KYMA Document status: Final ABSTRACT IFAST Task 11.3 has designed and built a prototype permanent magnet-based dipole-quadrupole magnet, referred to as the HEPTO magnet, as an energy saving alternative to an equivalent electromagnet. This report summarises the construction characteristics of the prototype that will be tested within the same framework at the Daresbury Laboratory, and the results will be reported in deliverable 11.3. MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 2 / 48 IFAST Consortium, 2025 For more information on IFAST, its partners and contributors please see https://ifast-project.eu/ This project has received funding from the European Union’s Horizon 2020 Research and Innovation programme under Grant Agreement No 101004730. IFAST began in May 2021 and will run for 4 years. Delivery Slip Name Partner Date Authored by B. Shepherd, R. Righi INFN, KYMA 10/10/25 Approved by M. Vretenar and L. Celona CERN 16/10/25 Approved by Steering Committee 16/10/25 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 3 / 48 TABLE OF CONTENTS 1. INTRODUCTION ......................................................................................................................................... 5 2. MECHANICAL DESIGN REPORT AND MANUAL .............................................................................. 6 3. CONCLUSIONS ......................................................................................................................................... 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 4 / 48 Executive summary This report presents Milestone MS56 of I.FAST Work Package 11, dedicated sustainable concepts and innovative technologies. Within Task 11.3, the realization of PM-based combined function magnet with dipole and quadrupole fields, aimed towards the magnets used in the Diamond-II lattice have been successfully designed and manufactured. Dimensional checks and the related activities confirm overall compliance with project specifications. Although a few deviations from nominal tolerances were identified, they are minor, non-critical, and manageable in the final magnet assembly. The completion of this milestone provides validated components for the next phase of the WP11.3, enabling the measurement of this new Permanent Magnet Quadrupoles & Combined Function Magnets for Ultra Low-Emittance Rings at Daresbury Laboratory (Deliverable 11.3). MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 5 / 48 1. Introduction Within the framework of I.FAST Work Package 11, dedicated to sustainable concepts and innovative technologies, Task 11.3 focuses on the construction of a Permanent Magnet -based combined function magnet with dipole and quadrupole fields. These are second-stage prototypes; the basic concept has already been demonstrated, and this work considers the requirements for cost-effective series production of reliable magnets for an operational science facility. The first part of the project was to assess the requirements in terms of field, field quality, magnetic length, overall magnet dimensions, and tuning range. A magnetic design and a mechanical design have been produced. Parts has been procured and magnet assembled. Finally, the completed magnet will undergo a programme of magnetic measurements at Daresbury laboratory (see Deliverable 11.3) to ensure that the specifications are met. This milestone (MS56) documents the completion of the magnet within the KYMA company confirming the overall compliance with the project specifications. MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 6 / 48 2. Mechanical design report and Manual MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 7 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 8 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 9 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 16 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 17 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 18 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 19 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 20 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 21 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 22 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 23 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 24 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 25 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 32 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 33 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 34 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 35 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 36 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 37 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 38 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 39 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 40 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 41 / 48 MAGNET CONSTRUCTED AND TESTED Milestone: MS56 Date: 16/10/2025 Grant Agreement 730871 PUBLIC 48 / 48 3. Conclusions The construction of the HEPTO Permanent Magnet -based combined function magnet with dipole and quadrupole fields in the I.Fast framework (Task 11.3) has been successfully completed and verified through dimensional inspection at KYMA, magnet has been shipped to STFC Daresbury for magnetic performance evaluation. In terms of mechanical design, there are a few areas which could be improved in future designs. In the current design, the main limitation was in the horizontal adjustment of the auxiliary poles. The horizontal adjustment range of the auxiliary poles is very limited because it relies on the elasticity of the material. A different solution should be explored to achieve sufficient adjustment range. Another important aspect is regarding alignment, namely providing fiducial points on the device and carry out the fiducialisation, which would help greatly with final alignment. Positional adjustment of the poles is functional, but is rather complex as it requires multiple operations. This increases the likelihood of human error. Future design should aim to simplify this process as much as possible. Some form of mechanical measurement should be carried out after shimming, especially regarding the gap between the main poles and the auxiliary poles. The gap after shimming should be sufficiently large to accommodate the vacuum chamber without any interference. These are not critical aspects and can be managed without impact. The manufactured magnet will be therefore validated to STFC Daresbury , representing a key step toward the realization of Deliverable D11.3.