IMP/CAS, Lanzhou, People’s Republic of China
The dispersion coupling effect has been successfully applied in stochastic cooling and laser cooling to realize 3D cooling. In electron cooling, the transverse cooling rate is usually smaller than the longitudinal one. By introducing dispersive cooling, it is possible to redistribute the cooling rate between the longitudinal and transverse planes. Theoretically, dispersive electron cooling can be achieved by introducing ion dispersion in the cooling section, and a transverse gradient of the longitudinal cooling force. The latter depends on many factors such as energy offset, transverse displacement, e-beam distribution, space charge effect, also the dispersion of e-beam. This means that there are several ways to achieve dispersive electron cooling. In my talk, I will give theoretical and simulation studies on dispersive electron cooling, and explain how these factors affect cooling rates. Based on the simple linear cooling force, a formula for estimating the cooling rate redistribution is also presented.
