Development of a proton CT head scanner

A Head proton computed tomography (pCT) scanner based on a fiber tracker and scintillator stack range detector has been developed at Northern Illinois University in conjunction with Fermilab. We present preliminary results from beam tests conducted in 2014 at the Central DuPage Hospital (CDH) at Warrenville, IL. The scanner is described in [1], and the image reconstruction hardware and software are described in [2].