Speaker
riccardo bartolini
(Diamond Light Source and John Adams Institute)
Description
The beta beating at the diamond storage ring has been reduced to less than 1% peak-to-peak and the linear coupling to 8e-4 at the source point, providing a vertical emittance of about 2pm. Building upon this excellent control of the linear optics, we have developed various techniques for the calibration of the nonlinear model of the storage ring. Experimental results based on FMA and driving terms analysis show that the calibrated nonlinear model reproduces with very good accuracy the main quantities characterising the nonlinear beam dynamics.
