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Comparison of the NIST and BIPM Air-Kerma Standards for Measurements in the Low-Energy X-Ray Range

Published

Author(s)

D T. Burns, P J. Lamperti, C M. O'Brien

Abstract

A direct comparison was made between the air-kerma standards used for the measurement of low-energy x rays at the National Institute of Standards and Technology (NIST) and at the Bureau International des Poids et Mesures (BIPM). The comparison was carried out at the BIPM using the BIPM reference beam qualities in the range for 10 kilovolts (kV) to 100 kV. The results show the standards to be in agreement to around 0.5% at reference beam qualities up to 50 kV and at 100 kV. The results at the 80 kV beam quality are less favorable, with agreement at the 1% level.
Citation
Journal of Research (NIST JRES) -
Volume
104 No. 2

Keywords

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

Citation

Burns, D. , Lamperti, P. and O'Brien, C. (1999), Comparison of the NIST and BIPM Air-Kerma Standards for Measurements in the Low-Energy X-Ray Range, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD (Accessed June 20, 2024)

Issues

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Created January 31, 1999, Updated October 12, 2021