Perspective of analogy between heat loads and impurity production in L-mode discharges with ICRH in WEST

•RF sheaths due to Ion Cyclotron Resonance Heating (ICRH) on tokamaks.•RF sheaths induce DC potential rectification and increase incident ions energy.•We can be in an ion-dominated regime when magnetically connected to ICRH antennas.•Then heat fluxes and sputtering are carried by ions and an analogy can be relevant.•In ion-dominated regime, infrared and spectroscopic data can become correlated.