Lattice function measurement of FNAL Main Injector at 8-GeV

The commissioning of Fermilab Main Injector had been very successful and the project is at its final phase. Even with the machine working as well as it did plenty of improvements are still to be made. Measuring and to understanding the machine lattice function should eventually lead to the improvement of the machine. In this write-up the preliminary measurement and analysis of the lattice function is reported.