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Publication Citation: Correction Factors for the NIST Free-Air Ionization Chambers Used to Realize Air Kerma from W-Anode X-ray Beam

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Author(s): Stephen M. Seltzer;
Title: Correction Factors for the NIST Free-Air Ionization Chambers Used to Realize Air Kerma from W-Anode X-ray Beam
Published: October 16, 2012
Abstract: This report details analyses in the development of certain correction factors for free-air ionization chambers used by the National Institute of Standards and Technology to realize air kerma for its measurement standards and calibrations of W-anode x-ray beams. The correction factors dealt with in this report are the electron-loss correction, kel, the photon-scatter correction, ksc, the fluorescence-reabsorption correction, kfl, and the bremsstrahlung-reabsorption correction, kbr.
Citation: NIST Interagency/Internal Report (NISTIR) - 7887
Keywords: air kerma; correction factors; NIST free-air chambers; measurement standards; x-ray beams
Research Areas: Radiation Physics
DOI: http://dx.doi.org/10.6028/NIST.IR.7887