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The beam line VI REC-steel hybrid wiggler for SSRL

Conference · · IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:5655012

A wiggler magnet with 27 periods, each 7 cm long which reaches 1.21 T at a 1.2 cm gap and 1.64 T at 0.8 cm gap has been designed and is in fabrication. Installation in SPEAR is scheduled for mid 1983. This new wiggler will be the radiation source for a new high intensity synchrotron radiation beam line at SSRL. The magnet utilizes rare-earth cobalt (REC) material and steel in a hybrid configuration to achieve simultaneously a high magnetic field with a short period. The magnet is external to a thin walled variable gap stainless steel vacuum chamber which is opened to provide beam aperture of 1.8 cm gap at injection and then closed to a smaller aperture (<1.0 cm). Five independent drive systems are provided to adjust the magnet and chamber gaps and alignment. Magnetic design, construction details and magnetic measurements are presented.

Research Organization:
Lawrence Berkeley Lab., Univ. of Cal., Berkeley, CA 94720
DOE Contract Number:
AC03-76SF00098; AC03-82ER13000
OSTI ID:
5655012
Report Number(s):
CONF-830311-
Journal Information:
IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. NS-30:4; ISSN IETNA
Country of Publication:
United States
Language:
English