Residual gas analysis of instrumentation wire for a synchrotron radiation beamline

A residual gas analysis was performed on different styles of polymer coated instrumentation wire. A variety of wires were selected to be analyzed based on cable construction, color coding, pricing and availability for small quantities. Each length of wire was measured to have equal surface area before testing. A vacuum pump down and residual gas analysis of each sample was performed for a period of 48 h. The pump down rate and outgassing characteristics of each wire were compared to determine the best choice of instrumentation wire to use in a beamline vacuum environment.