TY - GEN AU - Stephen Seltzer C2 - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD DA - 2009-11-30 LA - en M1 - 7557 PB - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD PY - 2009 TI - Calculations of Fluence Rates of Unscattered X- and Gamma-Ray Photons Emerging From Model Spheres of Special Nuclear Material UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=901131 ER -