A tutorial on the phase problem in diffractive imaging

Veit Elser, Cornell

The intensity in a diffraction experiment possess structure from which
the phase of the scattered radiation, which is not measured, can be
inferred. This talk aims to explain this structure and the algorithms that
are currently in use to "retrieve" the missing phases. No prior experience
with the phase problem is assumed and the ideas will be illustrated with a
very simple software implementation of the basic algorithm.