Title :
Beam expansion with specified final distributions
Author :
Jason, Andrew J. ; Blind, Barbara ; Halbach, Klaus
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
The formation of nearly uniformly distributed beams has been accomplished by the use of multipole magnets. Multipole fields, however, are an inappropriate basis for creating precise distributions, particularly since substantial departures from uniformity are produced with a finite number of multipole elements. A more appropriate formalism that allows precise formation of a desired distribution is presented. Design of nonlinear magnets for uniform-beam production and the optics of an accompanying expansion system are presented
Keywords :
accelerator magnets; particle beam stability; particle optics; beam expansion; expansion system; multipole fields; multipole magnets; nearly uniformly distributed beams; nonlinear magnets; specified final distributions; uniform-beam production; Biomedical optical imaging; Laboratories; Magnetic fields; Magnetic materials; Magnets; Nonlinear optics; Optical design; Optical materials; Production systems; Radioactive materials;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.753399
