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Key comparison BIPM.RI(I)-K6 of the standards for absorbed dose to water at 5 g cm-2 and 7 g cm-2 of the NPL, United Kingdom and the BIPM in accelerator photon beams
被引:1
|作者:
Picard, S.
[1
]
Burns, D. T.
[1
]
Roger, P.
[1
]
Duane, S.
[2
]
Bass, G. A.
[2
]
Manning, J. W.
[2
]
Shipley, D. R.
[2
]
机构:
[1] Bur Int Poids & Mesures, Pavillon Breteuil, F-92312 Sevres, France
[2] Natl Phys Lab, Teddington TW11 0LW, Middx, England
来源:
关键词:
D O I:
10.1088/0026-1394/52/1A/06010
中图分类号:
TH7 [仪器、仪表];
学科分类号:
0804 ;
080401 ;
081102 ;
摘要:
A comparison of the dosimetry for accelerator photon beams was carried out between the National Physical Laboratory (NPL) and the Bureau International des Poids et Mesures (BIPM) in two periods from September to November 2013. The comparison was based on the determination of absorbed dose to water for three radiation qualities at the NPL. The results, reported as ratios of the NPL and the BIPM evaluations (and with the combined standard uncertainties given in parentheses), are 0.9973(62) at 6 MV, 0.9995(66) at 10 MV and 0.9957(81) at 25 MV. This result is the sixth in the on-going BIPM.RI(I)-K6 series of comparisons.
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