TY - GEN AU - Higgins, P D AU - Attix, F H AU - Hubbell, J H AU - Seltzer, S M AU - Berger, M J AU - Sibata, C H C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1991-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.4680 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1991 TI - Mass energy-transfer and mass energy-absorption coefficients, including in-flight positron annihilation for photon energies 1 keV to 100 MeV: ER -