Title :
Emittance measurement from the decay rate of coherent oscillation through nonlinear filamentation
Author :
Kamada, S. ; Akasaka, N. ; Ohmi, K.
Author_Institution :
KEK, Ibaraki, Japan
Abstract :
A completely new approach to measure beam emittance is examined. It is based on measuring the decay rate of the coherent betatron-oscillation through nonlinear filamentation caused by lattice nonlinearity. Experimental results, computer simulations and an analytic approach using differential algebra are presented. This method may provide useful tools in measuring emittance at high brightness light sources, high luminosity particle factories and damping rings for linear colliders where emittance and coupling are expected to be very small
Keywords :
particle beam diagnostics; particle beam dynamics; coherent betatron-oscillation; coherent oscillation; computer simulation; damping rings; decay rate; differential algebra; emittance measurement; high brightness light sources; lattice nonlinearity; linear colliders; nonlinear filamentation; Algebra; Analytical models; Brightness; Lattices; Light sources; Nonlinear optics; Particle accelerators; Particle beams; Particle measurements; Stimulated emission;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.751032
