On August 10, the last plane was installed in the MINOS Near Detector. It took almost six months of complicated maneuvering to install all 282 planes, and the whole process was completed with no safety incidents.
"Each plane was handled a minimum of eight times," said John Voirin, the PPD Mechanical Installation Group Leader. "Safety was and is a priority, and complacency was a concern, so we regularly reviewed the hazards of the job. This was a large operation and the installation group--John Cornele, Tom Rathbun, Mark Shoun, John Kent and Jamie Grado--and everyone else involved should feel good about the result."
Each steel plate was first received at Fermilab, then stacked, inspected, assembled, stored, transported across the laboratory, lowered down the 360-foot shaft, moved down the detector hall and finally stacked into the MINOS Near Detector. Up to five planes a day were handled during the final installation.
"A lot of hands were involved in the installation process without incident, and that's phenomenal," said Mike Andrews, NuMI Project ES&H Coordinator. "Procedures were written, hazard analyses completed, and the people doing the installation were very organized and handled each plane with the same level of attention."