The main areas of SCIP IV will be treated in four tasks.

Task 1 is focused on fuel at back-end conditions. Creep and hydride reorientation under dry storage conditions, fuel in transport or handling accidents and treatment of failed fuel are investigated.

relocation and release. The consequences of cladding overheating and its impact on mechanical cladding properties, due to off normal transients at lower than LOCA typical temperatures and the axial constraint on fuel rod performance during a LOCA transient, are investigated as well.

In Task 2, LOCA issues, in particular fuel fragmentation, relocation and release are studied. With special focus on non-standard fuel, pressure and pre-transient microstructure. LOCA transients in spent fuel pool are investigated as well.

In task 3, the microstructure and microchemistry influencing PCI crack propagation is studied by means of advanced microscopy.

In task 4, modelling support to the experiments planning and to the data analysis is given by the participants and will stimulate understanding of the mechanisms important for transient fuel performance

In task 3, modelling support to the experiments planning and to the data analysis is given by the participants and will stimulate understanding of the mechanisms important for transient fuel performances.

There will be progress reports issued for all three tasks once a year.