The Faculty of Physics and Applied Computer Science at AGH University of Kraków, in collaboration with the National Museum in Kraków, Laboratory of Analysis and Non-Destructive Investigation of Heritage Objects (LANBOZ), invites applications from highly motivated candidates for a PhD project to be carried out within the framework of a doctoral scholarship competition at AGH University. The PhD research will focus on the development and optimization of macro-X-ray fluorescence (Macro-XRF) analysis for three-dimensional cultural heritage objects. The project addresses methodological challenges related to the acquisition, processing, modeling, and interpretation of spatially resolved XRF data from complex 3D geometries. Cultural heritage objects such as polychrome sculptures and archaeological artifacts present non-ideal, heterogeneous, and geometry-dependent systems that require advanced physical modeling and computational approaches. The project will treat these objects as real-world test cases for developing new analytical and data-processing strategies. Interested candidates are encouraged to contact the prospective supervisors to discuss the project scope prior to formal application. Formal application must follow AGH University Doctoral School procedures and deadlines. Please send your motivation letter, CV, and copies of your BSc and MSc diplomas by May 8, 2026 to: Bartosz Mindur (Prof. AGH University of Kraków) Mindur(at)agh.edu.pl and Julio M. del Hoyo-Meléndez (LANBOZ, Muzeum Narodowe w Krakowie) Jdelhoyo(at)mnk.pl.