Sterigenics International, the global provider of contract sterilization, gamma technologies and medical isotopes, is investing $15 million to expand its West Memphis, AR facility that will triple gamma sterilization capacity.   The facility currently offers 2.5 million cubic feet of gamma sterilization capacity and with the installation of a new gamma cell will triple capacity to 7.5 million cubic feet and upon completion in early 2017, will result in approximately 20 additional jobs.    “O...