Freeman, M. ., Allison, J. ., Andrews, M. ., Ferm, E. ., JJ, 3rd G., Kwiatkowski, K. ., … Wilde, C. . (2017). Inverse-collimated proton radiography for imaging thin materials. The Review of Scientific Instruments, 88(1), 013709. https://doi.org/10.1063/1.4973767
