Before revision: Often, inside the ion source a plasma is created between two tungsten electrodes, called reflectors, using a gas often based on fluorine containing the ion to be implanted whether it is germanium, boron, or silicon, such as boron trifluoride, boron URL germanium pentafluoride or silicon pentafluoride.
After revision: Often, inside the ion source a plasma is created between two tungsten electrodes, called reflectors, using a gas often based on fluorine containing the ion to be implanted whether it is germanium, boron, or silicon, such as boron trifluoride, boron difluoride, germanium pentafluoride or silicon pentafluoride.