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Danby, G.

Paper Title Page
MO6PFP006 Design of the NSLS II High Order Multipole Correctors* 139
 
  • M. Rehak, J. Bengtsson, G. Danby, J.W. Jackson, J. Skaritka, C.J. Spataro
    BNL, Upton, Long Island, New York
  
 

Funding: US DOE Office of Basic Energy Sciences


Feasibility studies for two families of corrector magnets for NSLS-II are presented. The first family of magnets are generalizations of figure eight quadrupoles using rotationally symmetric breaks in the return yoke to fit in available space. Properties specific to figure eight magnet are identified. The second type of magnet is a combined sextupole/dipole trim.

  
MO6PFP008 The Design and Construction of NSLS-II Magnets 145
 
  • J. Skaritka, J. Bengtsson, G. Danby, G. Ganetis, W. Guo, R.C. Gupta, J.W. Jackson, A.K. Jain, S.L. Kramer, S. Krinsky, Y. Li, W. Meng, B. Nash, S. Ozaki, M. Rehak, S. Sharma, C.J. Spataro, F.J. Willeke
    BNL, Upton, Long Island, New York
  
 

Funding: US DOE Office of Basic Energy Sciences


NSLS-II is a new state-of-the-art medium energy synchrotron light source designed to deliver world leading brightness and flux with top-off operation for constant output. Design and engineering of NSLS-II began in 2005 and the beginning of construction and operations are expected to start in 2009 and 2015, respectively. The energy of the machine is 3Gev and the circumference 792 m. The chosen lattice requires tight on magnetic field tolerances for the ring magnets. These magnets have been designed with 3D Opera software. The required multipole field quality and alignment preclude the use of multifunctional sextupoles, leading to discrete corrector magnets in the storage ring. The corrector magnets are multifunctional and will provide horizontal and vertical steering as well as skew quadrupole. This paper describes the dipoles, quadrupoles, sextupoles, and corrector magnets design and prototyping status of the NSLS-II.

  
MO6PFP009 Design and Measurement of the NSLS II Correctors 148
 
  • G. Danby, J.W. Jackson, A.K. Jain, M. Rehak, O. Singh, J. Skaritka, C.J. Spataro
    BNL, Upton, Long Island, New York
  
 

Funding: US DOE Office of Basic Energy Sciences


Discrete corrector magnets are used for the 230 horizontal and vertical steering magnets in the NSLS-II storage ring. A unique design incorporates both dipole and skew quad correctors for(DC) steering in the same magnet. Separate AC (orbit feedback) correctors have also been designed. Comparison with alternate designs are presented as well as prototype measurements