Since the start of the EU FP7 project SPIRIT in 2011, the Ruđer Bošković Institute accelerator facility became a Transnational Access (TNA) provider. Within the TNA scheme, scientists from EU and associated states can apply for beam time at any of the beam lines dedicated to ion beam analysis and materials modification.

We provide about 3,000 hours of beam time per year. International collaboration increased its share of the total beam time from 14% in 2007 to almost 40% in 2017. Currently, access to the facility’s equipment is provided to foreign researchers within the framework of several projects:

• EURO-LABS project: for testing radiation detectors by ion microbeams.
• ReMade@ARI project: providing access to the most developed ion beam techniques for materials analysis and modification for research in the field of the Circular Economy.
• RIANA project: providing access to developed ion beam analysis techniques for use in the fields of nanoscience and nanotechnology.
• CERIC-ERIC regional infrastructure network.
• IAEA Coordinated Research Project: "Facilitating Experiments with Ion Beam Accelerators".