Title :
High Energy Gamma Ray Beams from Compton Backscattered Laser Light
Author :
Sandorfi, A.M. ; LeVine, M.J. ; Thorn, C.E. ; Giordano, G. ; Matone, G. ; Schaerf, C.
Author_Institution :
Physics Department, Brookhaven National Laboratory Upton, New York 11973
Abstract :
Collisions of light photons with relativistic electrons have previously been used to produce polarized ¿-ray beams with modest (~10%) resolution, but relatively low intensity. In contrast, the LEGS project (Laser+Electron Gamma Source) at Brookhaven will produce a very high flux (>2Ã107 s-1) of background-free polarized ¿ rays whose energy will be determined to a high accuracy (¿E =2.3 MeV). Initially, 300(420) MeV ¿ rays will be produced by backscattering UV light from the new 2.5(3.0) GeV X-ray storage ring of the National Synchrotron Light Source (NSLS). The LEGS facility will operate as one of many passive users of the NSLS. In a later stage of the project, a Free Electron Laser is expected to extend the ¿-ray energy up to 700 MeV.
Keywords :
Backscatter; Electron beams; Energy resolution; Free electron lasers; Laser beams; Laser modes; Leg; Optical polarization; Storage rings; X-ray lasers;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1983.4336577