TY - RPRT TI - Experimentally measured total x-ray attenuation coefficients extracted from previously unprocessed documents held by the NIST Photon and Charged Particle Data Center AU - Hubbell, John H PY - 1996 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 5893 DO - 10.6028/NIST.IR.5893 ER -