Particle-Tracking Proton Computed Tomography - Data Acquisition, Preprocessing, and Preconditioning. - Blake Schultze; Paniz Karbasi; Christina Sarosiek; George Coutrakon; Caesar E. Ordoñez; Nicholas T. Karonis; Kirk L. Duffin; Vladimir Bashkirov; Robert P. Johnson; Keith E. Schubert; Reinhard W. Schulte (IEEE Access, 2021)