STIMULATED RADIATION COOLING （受激辐射冷却）.pdfVIP

Proceedings of RuPAC 2008, Zvenigorod, Russia STIMULATED RADIATION COOLING * E.G.Bessonov, R.M.Feshchenko P. N. Lebedev Physical Institute RAS, Russia. Abstract beam based on the backward Rayleigh scattering [4]. It In this paper the Stimulated radiation cooling (SRC) of does not refer to the stimulated emission. In [3] the ion beams and methods of formation of the broadband nonlinear regime of cooling ( P = 0 at ε εs and P 0 laser beams with given spectral distribution are discussed. at ε εs ) was considered. Non-fast cooling of ion beam INTRODUCTION in the bucket by a broadband laser beam based on the backward Rayleigh scattering was named radiative ion Beam cooling is the increase of six dimensional (6D) cooling [4]. phase space density and reduction of the 6D emittance of Note, that the beam density obeys exponential law the beam. The brightness of the particle beam (the only for the system described by linear differential current density per unit solid angle and per unit energy equations. In this case all parts of the beam are cooled spread) is proportional to its 6D phase space density. identically. Being an important parameter of the beam quality