Title :
Method of strong focusing
Author_Institution :
TRIUMF, Vancouver, BC, Canada
Abstract :
New methods for focusing and stabilization of the motion of charged and polarized neutral particles by electromagnetic fields are described. The idea is to rotate highly inhomogeneous fields in time so that the coupling of particles´ orthogonal oscillations near the focal axis is substantially modulated. Unlike the field alternation without rotation which is used throughout for strong focusing in systems like beam transport, accelerators, and traps, the rotation in such devices opens up new ways for focusing and trapping not only in a point or an axis but also in an orbit or cylindrical surface. It can give much tighter confinement, helps overcome space charge and aberrations problems and provides flexible monitoring of several beams
Keywords :
particle beam diagnostics; particle beam focusing; particle beam stability; space charge; aberrations problems; beam stabilization; beam transport; charged particles motion; electromagnetic fields; flexible beam monitoring; highly inhomogeneous fields; orthogonal oscillations; polarized neutral particles motion; space charge; strong focusing method; Electrodes; Electromagnetic wave polarization; Equations; Frequency; Magnetic analysis; Optical beams; Optical control; Particle accelerators; Particle beams; Space charge;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.750695
