An eddy-current septum magnet has been developed for injection of SSRF storage ring. The performance of the magnet is very good, the stray field outside of the septum is less than 2 Gauss. To reduce the stray field, a curved septum is adopted, its average thickness is 4.5 mm while its thickness at the exit of the magnet is 1.4mm. To reduce the stray field further, a section of iron tube will be used as the vacuum chamber for storage ring near the septum magnets, which is coated with nickel on the inside surface.
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