Members of the Mechanical Support Department are testing samples of different types of stainless steel and postwelding treatment to determine which will best stand up to corrosion in the Main Injector environment. They conduct these tests in anticipation of higher-intensity beams from the accelerator. Kris A. Anderson, AD, made this set of 10 samples, installed at the 311 region of the Main Injector. He also installed two other sets — another in the Main Injector ring and a third set outside it. Photo: Jesse Batko, AD