Correct Dumb-bells are very important to make sure the right field flatness,frequency of TM010 mode and length of 9-cell TESLA cavity.The shape of the dumb-bells will be wrong due to deep drawing,machining and EB weld...Correct Dumb-bells are very important to make sure the right field flatness,frequency of TM010 mode and length of 9-cell TESLA cavity.The shape of the dumb-bells will be wrong due to deep drawing,machining and EB welding.Then,the dumb-bells should be adjusted after iris and stiffness welding according to the mechanical and microwave measurement.Peking University has set up facilities for measuring and correcting the dumb-bells.This paper discusses the method of measuring and correcting the dumb-bells.展开更多
文摘Correct Dumb-bells are very important to make sure the right field flatness,frequency of TM010 mode and length of 9-cell TESLA cavity.The shape of the dumb-bells will be wrong due to deep drawing,machining and EB welding.Then,the dumb-bells should be adjusted after iris and stiffness welding according to the mechanical and microwave measurement.Peking University has set up facilities for measuring and correcting the dumb-bells.This paper discusses the method of measuring and correcting the dumb-bells.
