Comparison of the standards for absorbed dose to water of the NMIJ and the BIPM for 60Co γ-ray beams

被引：4

作者：

Kessler, C. ^{[1
]}

Allisy-Roberts, P. J. ^{[1
]}

Morishita, Y. ^{[2
]}

Kato, M. ^{[2
]}

Takata, N. ^{[2
]}

Kurosawa, T. ^{[2
]}

Tanaka, T. ^{[2
]}

Saito, N. ^{[2
]}

机构：

[1] Bur Int Poids & Mesures, F-92312 Sevres, France

[2] AIST, Natl Metrol Inst Japan, Tsukuba, Ibaraki 3058568, Japan

来源：

METROLOGIA | 2011年 / 48卷

关键词：

D O I：

10.1088/0026-1394/48/1A/06008

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A comparison of the standards for absorbed dose to water of the National Metrology Institute of Japan (NMIJ) and of the Bureau International des Poids et Mesures (BIPM) was carried out in the Co-60 gamma-ray reference beam of the BIPM in November to December 2009 under the auspices of the key comparison BIPM.RI(I)-K4. The comparison result, based on the calibration coefficients for two transfer standards and expressed as a ratio of the NMIJ and the BIPM standards for absorbed dose to water, is 0.9960 (46). The degrees of equivalence between the NMIJ and the other participants in this comparison have been calculated and the results are given in the form of a matrix for the ten national metrology institutes (NMIs) that have participated. A graphical presentation is also given.

引用

页数：14

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