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) - 7887Report Number:
NIST Pub Series: NIST Interagency/Internal Report (NISTIR)
Pub Type: NIST Pubs
air kerma, correction factors, NIST free-air chambers, measurement standards, x-ray beams