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| Title | Magnet Development for SPring-8 Upgrade | |||||
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| Abstract | One of the features for newly designed magnets for the SPring-8 major upgrade plan* is permanent magnet based dipole magnets for substantial energy saving. The new dipole magnets have been designed to be equipped with (i) a field variable function by controlling magnetic flux into a beam axis, (ii) a nose structure on iron poles for smooth B-field transition in the longitudinal gradient field, and (iii) a nearly zero temperature coefficient of magnet circuit with the help of a shunt alloy**. Demagnetization due to radiation is also a critical issue. At SPring-8, demagnetization process has been intensively studied, and the effect has been considered in the design of dipole magnets. Although electromagnet based multi-pole magnets are rather conventional technologies, yet new magnets need to be designed to fit in the next generation high packing factor lattice with as reasonably lower energy consumption as possible. Magnet alignment will be a key development as well; in order to secure adequate dynamic apertures, magnets ought to be aligned within tens of microns. Current design and recent progress in the developments of magnets and alignment schemes will be presented. | |||||
| Footnotes & References | * H. Tanaka et al., SPring-8 Upgrade Project, in the abstracts. ** T. Taniuchi et al., Proc. of IPAC2015, WEPMA050. |
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| Paper | download TUOCB03.PDF [0.824 MB / 3 pages] | |||||
| Slides | download TUOCB03_TALK.PDF [4.014 MB] | |||||
| Export | download ※ BibTeX ※ LaTeX ※ Text/Word ※ RIS ※ EndNote | |||||
| Conference | IPAC2016, Busan, Korea | |||||
| Series | International Particle Accelerator Conference (7th) | |||||
| Proceedings | Link to full IPAC2016 Proccedings | |||||
| Session | Contributed Oral Presentations, Accelerator Technology | |||||
| Date | 10-May-16 15:00–16:00 | |||||
| Main Classification | 07 Accelerator Technology | |||||
| Sub Classification | T09 Room-temperature Magnets | |||||
| Keywords | dipole, sextupole, alignment, quadrupole, undulator | |||||
| Publisher | JACoW, Geneva, Switzerland | |||||
| Editors | Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Dong Eon Kim (PAL, Pohang, Republic of Korea); Kyung Sook Kim (PAL, Pohang, Republic of Korea); In Soo Ko (POSTECH, Pohang, Republic of Korea); Volker RW Schaa (GSI, Darmstadt, Germany) | |||||
| ISBN | 978-3-95450-147-2 | |||||
| Published | June 2016 | |||||
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