 Using proton bombardment for the production of KrF2 has a maximum production rate of about 1 g/h.This is achieved by bombarding mixtures of Kr and F2 with a proton beam operating at an energy level of 10 MeV and at a temperature of about 133 K. It is a fast method of producing relatively large amounts of KrF2, but requires a source of α-particles, which usually would come from a cyclotron.The successful photochemical synthesis of krypton difluoride was first reported by Lucia V. Streng in 1963.