A method for probing machine optics by constructing transverse real space beam distributions using Beam Position Monitors

At the Spallation Neutron Source (SNS) in Oak Ridge, we sought to measure the transverse tilt and profile of the beam at several locations in our Ring to Target Beam Transport (RTBT) line where we did not have wire scanners. A new method was proposed and used to construct the transverse real space beam distributions from Beam Position Monitor (BPM) signals to probe the machine optics. In this paper, we outline this method and present an experiment demonstrating this technique, and we qualitatively compare the results with profiles taken using wire scanners.