Fritz Gordon Schirmers Schirmers, F. G., Davis, A., Wooten, H. O., Dudziak, D. J., Yim, M.-S., & McNelis, D. (2009). CALCULATION OF PHOTON EXPOSURE AND AMBIENT DOSE SLANT-PATH BUILDUP FACTORS FOR RADIOLOGICAL ASSESSMENT. NUCLEAR TECHNOLOGY, 167(3), 395–409. https://doi.org/10.13182/NT09-1