| Paper |
Title |
Page |
| THPAB045 |
Design of a Short Period Helical Superconducting Undulator |
3844 |
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- A.G. Hinton
STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
- J. Boehm, L. Cooper, B. Green, T. Hayler, P. Jeffery, C.P. Macwaters
STFC/RAL, Chilton, Didcot, Oxon, United Kingdom
- S. Milward
DLS, Oxfordshire, United Kingdom
- B.J.A. Shepherd
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
- B.J.A. Shepherd
Cockcroft Institute, Warrington, Cheshire, United Kingdom
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Superconducting technology provides the possibility to develop short period, small bore undulators that can generate much larger magnetic fields than alternative technologies. This may allow an XFEL with optimised superconducting undulators to cover a broader range of wavelengths than traditional undulators. At STFC, we have undertaken work to design and build a prototype helical superconducting undulator (HSCU) module with parameters suitable for use on a future XFEL facility. This work includes the design of a full 2 m long undulator module, including an undulator with 13 mm period and 5 mm inner winding diameter, the supporting cryogenic and vacuum systems required for operation, and quadrupoles, phase shifters and correction magnets for use between undulator sections. We present here the magnetic and mechanical design of the HSCU. The choice of undulator parameters and their influence on the design is discussed. A turnaround scheme to allow continuous winding of the undulator without the need for superconducting joints is also presented. Techniques for winding the undulator are currently being investigated and a short prototype will soon be wound and tested.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB045
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| About • |
paper received ※ 17 May 2021 paper accepted ※ 18 June 2021 issue date ※ 21 August 2021 |
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| TUPAB365 |
Demonstration of ‘ZEPTO’ Permanent Magnet Technology on Diamond Light Source |
2370 |
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- A.R. Bainbridge, B.J.A. Shepherd
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
- N. Krumpa
STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
- I.P.S. Martin, W. Tizzano
DLS, Oxfordshire, United Kingdom
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The use of permanent magnets (PM’s) in place of traditional electromagnets is becoming more common in accelerator systems around the world. This change is being driven by the desire to reduce both the energy costs and carbon footprint of accelerators. However, the problem remains that it is difficult to adjust the field strength of PM systems. STFC and CERN have a longstanding collaboration in the Zero-Power Tuneable Optics (ZEPTO) project which aims to develop PM systems that are tuneable via moving the PM blocks within a static pole structure. This collaboration has previously produced 3 prototype magnets (2 quadrupoles and 1 dipole) for the proposed CLIC accelerator and aims to expand suitability to a variety of accelerators. We are now demonstrating this technology on a real machine by installing a ZEPTO magnet on Diamond Light Source. We outline the design, construction, and improvement of this technology demonstrator, highlighting the innovations over previous generations of ZEPTO technology that account for previously observed drawbacks.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB365
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|
| About • |
paper received ※ 18 May 2021 paper accepted ※ 22 June 2021 issue date ※ 12 August 2021 |
|
| Export • |
reference for this paper using
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※ LaTeX,
※ Text/Word,
※ RIS,
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