TY - GEN AU - Leticia Pibida AU - Michael Unterweger C2 - Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD DA - 2012-09-12 DO - https://doi.org/10.6028/NIST.TN.1758 LA - en M1 - 1758 PB - Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD PY - 2012 TI - Justification of Shielding Requirements for Plutonium Sources ER -