X-ray holography

A review of holographic methods using hard x-rays is presented, The main em phasis is put on those techniques which aim to produce atomic resolution. F or this reason 'the inside source concept' and its experimental realization s are discussed in detail. Apart from the general description of holographi c imaging with atomic resolution, specific features such as the effect of m ultiple scattering, translation periodicity and angular dependence of the a tomic scattering factor are also given.