TY - GEN AU - Ghose, A M AU - Gopinath, D V AU - Hubbell, J H AU - Roy, S C C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1977-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.461 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1977 TI - Radiation physics: ER -