The 2025 Walter Hälg Prize is awarded to Juan Rodriguez-Carvajal for the creation of the “Full Prof” software:
Made available to the international community, Full Prof is a tool for analyzing X-ray or neutron diffractograms on polycrystals using the Rietveld method. The software takes into account numerous effects: instrumental resolution, texture, rigid groups, absorption, and single crystals, and allows the determination of magnetic structures. Historically based on the method of irreducible representations, the software is now based on the formalism of magnetic space groups or supergroups.
Juan Rodriguez-Carvajal is scientist at ILL.