The Third European Workshop on Monte Carlo Treatment Planning will be hosted by the city of Seville. We welcome you to our city and we hope you will enjoy this event.

We believe that a third meeting like the one we are going to celebrate this year, reinforces the original idea of establishing a working network for discussion and exchange of scientific knowledge focused on the application of Monte Carlo method to radiotherapy practice.

From the first meeting in Ghent, Belgium in 2006, and after the last one in Cardiff in 2009, the role of Monte Carlo in radiotherapy planning has continued growing and becomes more relevant every day, as new techniques are more sophisticated and ambitious. IGRT and 4-D planning are facing new cumulative uncertainties which require accurate calculations to justify the additional workload involved.

This Workshop on MCTP of the European Workgroup (EWG-MCTP) is addressed to stimulate scientists information exchange, and to offer the opportunity to scientists to exchange information, and to generate international collaborations. Our dual goal is to achieve the highest scientific level in the framework of a memorable stay in our city.