The SPIDER experiment is operating at the ITER Neutral Beam Test Facility PRIMA since June 2018 to study operation of a full ITER-size negative ion source. In order increase extracted current and reduce co-extracted electron current, caesium evaporated inside fact, adsorption Cs onto plasma grid, i.e. first grid extraction system, lowers surface work function, enhancing probability conversion i...

Xenon and caesium are among the most impacting fission products when studying nuclear fuel: xenon for its role on fuel rod thermomechanical behaviour during reactor operation in case of atmospheric radioactive release an accident a power plant. This paper focuses comparison thermal polycrystalline uranium dioxide (UO2) pellets. Caesium-133 or xenon-136 stable isotopes were introduced depleted U...