Fuente: Wipo "precision farming" Disclosed herein are a plasma source, an abatement unit, and a method for detecting a coolant leak. The plasma source includes an RF generation system coupled with a cooling system. The RF generation system includes one or more electrical components comprising a hollow RF antenna for generating a plasma. The cooling system includes a coolant channel extending through the plasma source, including the electrical components of the RF generation system; a first flow control device coupled to the coolant channel to control a flow of the coolant into the coolant channel and electrically isolated from the hollow antenna; a second flow control device coupled to the coolant channel to control a flow of the coolant out of the coolant channel; and a pressure measurement device coupled with the coolant channel to measure a pressure level of the coolant. The coolant channel includes the hollow RF antenna.