Comparison of the NIST and BIPM air-kerma standards for measurements in the low-energy x-ray range

Journal Article · Mon Mar 01 04:00:00 EST 1999 · Journal of Research of the National Institute of Standards and Technology

DOI:https://doi.org/10.6028/jres.104.009· OSTI ID:361774

Burns, D T ^[1]; Lamperti, P; O`Brien, M ^[2]

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1. Bureau International des Poids et Mesures, Sevres (France)
2. National Inst. of Standards and Technology, Gaithersburg, MD (United States)

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 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 from 10kV to 100 kV. The results show the standards to be in agreement to around 0.5% at reference beam qualities up to 50kV and at 100 kV. The result at the 80kV beam quality is less favorable, with agreement at the 1% level.

• Sponsoring Organization: USDOE
• OSTI ID: 361774
• Journal Information: Journal of Research of the National Institute of Standards and Technology, Journal Name: Journal of Research of the National Institute of Standards and Technology Journal Issue: 2 Vol. 104; ISSN JRITEF; ISSN 1044-677X
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
CALIBRATION STANDARDS
INTERLABORATORY COMPARISONS
IONIZATION CHAMBERS
KERMA
X-RAY DETECTION
X-RAY SOURCES