TY - GEN AU - Seltzer, Stephen M. C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2012-10-01 04:10:00 DO - https://doi.org/10.6028/NIST.IR.7887 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2012 TI - Correction Factors for the NIST Free-Air Ionization Chambers Used to Realize Air Kerma fromW-Anode X-Ray Beams: ER -