LNE-LNHB air-kerma and absorbed dose to water primary standards for low dose-rate 125I brachytherapy sources

被引：4
|
作者：
Aubineau-Laniece, I. [1 ]
Chauvenet, B. [1 ]
Cutarella, D. [1 ]
Gouriou, J. [1 ]
Plagnard, J. [1 ]
Aviles Lucas, P. [1 ,2 ]
机构：
[1] CEA, LIST, Lab Natl Henri Becquerel, F-91191 Gif Sur Yvette, France
[2] CIEMAT, Lab Metrol Radiac Ionizantes, E-28040 Madrid, Spain
来源：
METROLOGIA | 2012年 / 49卷 / 05期
关键词：
D O I：
10.1088/0026-1394/49/5/S189
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The devices and methods applied for the LNE-LNHB primary standards in terms of reference air-kerma and absorbed dose to water for low dose-rate brachytherapy sources are described. Both standards are based on ionometric measurements, using a circular-shaped free-in-air ionization chamber, and Monte Carlo calculated conversion factors. Results for an IBt Bebig I-125 source are presented and used here to assess the dose-rate constant. Uncertainties of 1.5% and 1.6% (with k = 1) were found for the air-kerma rate and the absorbed dose to water rate estimated with the new primary standards. Good agreement was found between our values and the AAPM published dose-rate constants. Comparisons with other primary standards are in progress.
引用
收藏
页码：S189 / S192
页数：4
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