ISSN - 0217751X, International Journal of Modern Physics A, 2004, vol. 19, p. 5097-5186
The photon collider at TESLA
High energy photon colliders (γγ, γe) are based on e -e- linear colliders where high energy photons are produced using Compton scattering of laser light on high energy electrons just before the interaction point. This paper is a part of the Technical Design Report of the linear collider TESLA. 1 Physics program, possible parameters and some technical aspects of the photon collider at TESLA are discussed.