TY - GEN AU - Larry Lucas AU - Leticia Pibida C2 - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD DA - 2009-11-30 LA - en M1 - 114 PB - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD PY - 2009 TI - New Spherial Gamma-ray and Neutron Emitting Sources for Testing of Radiation detection Instruments UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903127 ER -