The effect of gyration on the deposition of beryllium and deuterium at rough surface on the divertor tiles with ITER-like-wall in JET

•IBA data suggested that surface D accumulated on the top stage of sample while Be stayed on the 10–20 μm stages from the top.•Gyro-motion of D could explain this accumulation on the top qualitative but overestimated the D amount in deeper stage.•IBA results for Be agreed with the simulation data on the stages located at ≈20 μm from the top.•Surface D accumulated on the region on which simulation overestimated Be amount.