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Advanced Dipole Magnet Design for Fast Ramping Synchrotron Applications

This document outlines the specifications and testing results of a dipole magnet designed for fast ramping synchrotron geometry. It highlights essential parameters such as the required good field region of 62x10 mm² and a magnet aperture of 100x13 mm². The project involved material acquisitions, including 6.5% SiFe and FeCo steel, with tests conducted at Fermilab. Key contributors to the testing phase are acknowledged, and results from various measurements in C, L, and L/C directions are discussed, addressing discrepancies in hysteresis loops and material performance.

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Advanced Dipole Magnet Design for Fast Ramping Synchrotron Applications

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  1. Dipole for Fast Ramping Synchrotron

  2. Geometry • Required good field region: 62x10 mm2 • Magnet aperture: 100x13 mm2 • Magnet dimension: • > 500x500 mm2 6.5%SiFe FeCo

  3. Magnetization 1 T 2 T

  4. Maximum Field 2T?

  5. Epstein Frame Test • FeCo • enough material purchased for 9 test strips (24 planned) • 6.5SiFe • 100 strips shipped (thanks to Mr. Ninomiya at JFE) • Epstein frame test at Fermilab • thanks to Robert W Riley and John Zweibohmer

  6. 6.5 Si Steel • Measurements • C-direction • L-direction • L/C direction

  7. Results 6.5% Si Steel

  8. Results 6.5% Si Steel

  9. Results 6.5% Si Steel

  10. Results 6.5% Si Steel

  11. Results 6.5% Si Steel

  12. FeCo - Hiperco • Purchased from Ed Fagan • Hiperco 50 (A) • Cut to size on site • Annealed at IFW in Dresden, Germany • 871 deg C, 2h in vacuum

  13. FeCo – Hiperco 50A

  14. FeCo – Hiperco 50A

  15. FeCo – Comparison GO Steel

  16. Fe Co Results • about 0.1T short • reason is unknown • wrong material • bad batch • not enough material • wrong annealing • Vacuumschmelze GmbH & Co. KG • Hanau, Germany

  17. Vacoflux 48

  18. Summary • 6.5% Si steel • confirmed values from datasheet • almost isotropic • good match of hysteresis loop • losses? • FeCo • discrepancy between datasheet and measurement • Vacuumschmelze

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