The University of Arizona offers access to a unique research tool, one of only two available to researchers on campus, that is used to gamma irradiate cells. Gamma irradiation is a process that kills off microorganisms in a variety of materials, a sterilization process often used for the treatment of medical devices. All users must be trained and approved for the use of the irradiator through the acquisition of various certifications. The machine is located in the basement of the BIO5 Institute, Keating Building.