The Erasmus+ Staff Mobility program represents an opportunity for the exchange of knowledge and best teaching practices at an international level. This program enables the establishment of synergies between institutions and teaching and research groups, fostering academic and scientific collaboration. Additionally, it provides a valuable tool for developing new teaching skills, enriching the pedagogical practice of participants. From a social perspective, the experience is highly beneficial, as it facilitates engagement with students from different languages and cultures, promoting diversity and intercultural exchange. Within this framework, since 2015, an annual specialized course on Monte Carlo simulation applied to Positron Emission Tomography (PET) systems has been offered at Haute École Bruxelles-Brabant (Brussels, Belgium), as part of an Erasmus+ agreement between this institution and the Universitat Politècnica de València (Spain). This initiative is part of the collaboration between both universities within the CHERNE network (Cooperation for Higher Education on Radiological and Nuclear Engineering). The course is exclusively designed for master’s students with a background in medical physics and biomedical engineering, who are interested in modeling and optimizing PET devices using advanced computational simulations. The course content includes the theoretical foundations of positron emission and the description and application of the GATE toolkit, developed by the OpenGATE Collaboration project, which is widely used in the scientific community for simulating physical processes in medical imaging. The course structure is based on a highly practical approach, combining theoretical sessions with hands-on activities. It includes six hours of theoretical instruction and tutorials on the use of the software and simulation code, followed by six hours of independent work in which students develop a model of a commercial PET system. This methodology allows participants to acquire skills in configuring PET detector models and analyzing simulation results. The main contributions of this work include the integration of active learning methodologies in teaching Monte Carlo simulation applied to PET technology, the promotion of the GATE toolkit as a reference tool in master's level education, and the strengthening of international academic collaboration through the Erasmus+ Staff Mobility program. Furthermore, continuous assessment of the course over the years has enabled ongoing optimization of its structure and content, ensuring its relevance and applicability in the professional field. The full paper will detail the course content, the teaching-learning methodology, and its evaluation, providing a comprehensive analysis of its impact and evolution over the years.

Keywords: Erasmus+ mobility staff, Monte Carlo, Positron Emission Tomography.