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Key comparison BIPM.RI(I)-K3 of the air-kerma standards of the NIST, USA and the BIPM in medium-energy x- rays

Published

Author(s)

C M. O'Brien, D T. Burns, Ronaldo Minniti

Abstract

A key comparison has been made between the air-kerma standards of the NIST, USA and the BIPM in the medium-energy x ray range. The results show the standards to be in agreement at the level of the standard uncertainty of the comparison of 3.8 parts in 103, except at 250 kV where the difference is 1.5 times the standard uncertainty. The results are analysed and presented in terms of degrees of equivalence, suitable for entry in the BIPM key comparison database.
Citation
Metrology
Volume
54

Keywords

air kerma, free-air ionization chamber, primary standard, reference radiation qualities, x-ray calibrations

Citation

O'Brien, C. , Burns, D. and Minniti, R. (2017), Key comparison BIPM.RI(I)-K3 of the air-kerma standards of the NIST, USA and the BIPM in medium-energy x- rays, Metrology (Accessed May 19, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created August 1, 2017, Updated August 3, 2017