O'Sheg Oshinowo

The snow may have taken its leave on the home front, but it was still going strong last week at the NOvA far detector in Minnesota. Members of the Alignment and Metrology Department recently visited the detector to survey the NOvA far-detector blocks.

The sun slips beneath the horizon on Thursday. This photo was taken from the back of the DZero Outback Building. The big tornado shelter is visible on the right.

This survey monument, located at Fermilab’s Buffalo Farm, and several similar monuments on site form a GPS surface geodetic control network established to determine the accurate position of each monument. These coordinates are then used to establish a control network for aligning dipoles, quadrupoles and other components in the laboratory’s tunnels.