X. Qiu et al., DEMONSTRATION OF EMITTANCE COMPENSATION THROUGH THE MEASUREMENT OF THE SLICE EMITTANCE OF A 10-PS ELECTRON BUNCH, Physical review letters, 76(20), 1996, pp. 3723-3726
The beam matrix of a picosecond long slice of an electron bunch was me
asured. A short slice is selected out of an energy chirped beam by a s
lit in a dispersive region. The emittance is measured using the quadru
pole scan technique. We observe the process of emittance compensation
of the beam by repeating the measurement for various values of the com
pensating solenoid and for several slices.