O'Brien, C.
, Burns, D.
and Kessler, C.
(2012),
Key Comparison BIPM.RI(I)-K2 of the air-kerma standards of the NIST, USA and the BIPM in low-energy x-rays, http://iopscience.iop.org, [online], http://iopscience.iop.org
(Accessed October 8, 2025)
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Key Comparison BIPM.RI(I)-K2 of the air-kerma standards of the NIST, USA and the BIPM in low-energy x-rays
Published
Author(s)
, D T. Burns, C Kessler
Abstract
A key comparison has been made between the air-kerma standards of the NIST and the BIPM in the low-energy x ray range. The results show the standards to be in general agreement at the level of the combined standard uncertainty for the comparison of 4.1 parts in 103, although the results for the different radiation qualities show variations that are larger than would be expected. The results are analysed and presented in terms of degrees of equivalence, suitable for entry in the BIPM key comparison database.Citation
http://iopscience.iop.org
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Websites
Keywords
air kerma, free-air ionization chamber, low energy x-ray air kerma traceability, reference radiation qualities, x-ray calibration
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Created March 23, 2012, Updated February 19, 2017