Title :
Magnetic field correction of 11-m-long undulator of NewSUBARU
Author :
Shoji, Yoshihiko ; Miyamoto, Shuji ; Niibe, Masahito ; Tanaka, Takashi ; Kitamura, Hideo
Author_Institution :
Lab. of Adv. Sci. & Technol. for Ind., Himeji Inst. of Technol., Ako-Gun, Japan
fDate :
6/1/2004 12:00:00 AM
Abstract :
The NewSUBARU storage ring has an 11 m long, permanent magnet planar undulator. We adjusted its magnetic field distribution to minimize the imperfection fields mainly by an in-situ sorting method. The LU is separable into eight units and the imperfection fields were reduced for each of eight units to prevent them from exciting unnecessary betatron resonance in the ring.
Keywords :
electron accelerators; error compensation; magnetic field measurement; permanent magnets; storage rings; wigglers; 11 m; NewSUBARU; electron storage rings; error compensation; magnetic field correction; magnetic field distribution; magnetic field measurement; permanent magnet planar undulator; Coils; Coordinate measuring machines; Extraterrestrial measurements; Guidelines; Hall effect devices; Laboratories; Magnetic field measurement; Magnetic fields; Storage rings; Undulators; Electron storage rings; error compensation; magnetic field measurement; undulators;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2004.829722
