Dataset for experimental observation of enhanced plasma potential due to unabsorbed fast wave on EAST

The plasma potential up to 100 V was found in the region that does not map along the magnetic field line to the active I-port antenna had been observed in EAST tokamak. The dataset for RF sheath enhancement correlates with the local fast wave intensity produced by the diagnostic system in EAST tokamak. The dataset records: 1) the relationship between ICRF fast wave and slow wave; 2) the relationship between fast wave and plasma potential.