The reactor produced plutonium-239 by irradiating uranium-238 with neutrons generated by the nuclear reaction. Fluorescent nanodiamond particles can be mass produced through irradiating diamond nanocrystallites with helium ions. Polonium is now usually obtained by irradiating bismuth with high-energy neutrons or protons. The tritium was produced during the explosion by irradiating the lithium with fast neutrons. Es was produced by irradiating Cf with deuterium ions. It can be created by irradiating Nickel-62 with neutrons in a nuclear reactor. Astatine is produced in minute quantities by irradiating bismuth. Polonium and astatine are produced in minute quantities by irradiating bismuth. Normal sterilization procedures such as boiling or irradiating materials fail to render prions non-infective. The classic induction of a lysogen involved irradiating the infected cells with UV light. After irradiating rodent food, Steenbock discovered the rodents were cured of rickets. Irradiating the males was used for sterilization. Irradiating the discoloured Blue John in a nuclear reactor can bring the colour back. By February, the reactor was irradiating a ton of uranium every three days. By February 1944, the reactor was irradiating a ton of uranium every three days.