Start of funding 01.01.2011

Laser-driven X-ray Source for Medical Imaging

Prof. Dr. Florian Grüner
Ludwig-Maximilians-University of Munich

Dr. Wim Leemans
Lawrence Berkeley National Laboratory



The Munich team is the world´s first group to realize a laser-driven, soft X-ray undulator source (Fuchs et al., Nature Physics, 5, 826 (2009)) - a major break-through in the newly emerging field of brilliant X-ray sources based upon laser-plasma accelerators. Owing to their much higher accelerating gradients, their total length shrinks from few hundred meters down to few centimetres - and this holds promise for installing such novel X-ray sources in hospitals - whereas comparably brilliant, conventional (third-generation) synchrotron sources are simply too spacious with their few hundred meter diameters. Together with our Berkeley partner we want to advance laser-plasma accelerators towards medical imaging - with the advantage of reducing the radiation dose, especially for mammography.

Final report:
Laser-driven sources of x-rays form a very active and rapidly evolving field of research. Promising a compact source of high-brightness x-ray beams, they could provide an invaluable tool for research insitutes, while at the same time being widely available due to their reduced size and cost. Their unique properties have a wide range of applications, for example in medical imaging, where high-resolution diagnostic images at reduced dose rate seem possible.

During the grant period a fruitful exchange with cooperation partners in Berkeley was supported, leading to intensified cooperation between both groups. The area of laser-driven sources of x-rays prooved to be a very promising field, and in the meantime PhD theses as well es first measurements towards enhanced medical imaging could be completed.