TY - GEN AU - H Koch C2 - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD DA - 2006-12-01 LA - en M1 - 111 No. 6 PB - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD PY - 2006 TI - Recollections on Sixty Years of NBS Ionizing Radiation Programs for Energetic X Rays and Electrons ER -