Purpose

The Splitter magnet will handle beam electrons, scattered electrons and positively charged kaons at the same time. It separates the scattered electrons and kaons at small forward angles to much larger separation angles before entering the Enge and HKS spectrometers, respectively. Therefore, it contributes to the overall optics for both the Enge and HKS spectrometers. It will also bend the electron beam about 8.15 degrees and reorient aiming back to Hall C dump by later two dipoles, DZ and EZ magnets.

Although using such a common Splitter magnet reduces kinematics flexibility, it greatly optimizes the usage of large high precision spectrometers at large physical angles to detect extremely forward scattered particles with opposite charges under very limited space.