Defense Microelectronics Activity is procuring preventative maintenance for their Team EDS X-ray spectroscopy tool. This requirement is being solicited as a sole source requirement, Justification and ... Defense Microelectronics Activity is procuring preventative maintenance for their Team EDS X-ray spectroscopy tool. This requirement is being solicited as a sole source requirement, Justification and Approval is attached. Contract is for a base year and four one year options.