未找到相关数据
GET 117-2023 state primary standard for absorbed dose, absorbed dose rate, ambient and personal dose equivalents, and ambient and personal dose equivalent rates from neutron radiation
被引：0
作者：
Sergey G. Fedorov
[1
]
Alexander V. Berlyand
[1
]
Vladimir A. Berlyand
[1
]
Vladimir M. Dyachenko
[1
]
Oleg I. Kovalenko
[1
]
机构：
[1] Russian Metrological Institute of Technical Physics and Radio Engineering,
关键词：
Standard;
Absorbed dose;
Ambient dose equivalent;
Personal dose equivalent;
Neutron radiation;
Dosimetry;
Spectrometry;
Metrological support;
Measurement uniformity;
Neutron therapy;
539.1.08;
D O I：
10.1007/s11018-025-02393-7
中图分类号：
学科分类号：
摘要：
The article considers issues related to ensuring measurement uniformity and traceability of measurement results obtained in neutron therapy using clinical dosimeters to GET 117-2023 State primary standard for absorbed dose, absorbed dose rate, ambient and personal dose equivalents, and ambient and personal dose equivalent rates from neutron radiation. Methods and means of reproducing and disseminating the units of ambient and personal dose equivalents from neutron radiation and their rates are described. These units are reproduced using the reconstructed energy distribution of neutrons within the energy range of 0.001–20 MeV. Requirements for uncertainty in measuring the units are presented; in particular, the relative expanded uncertainty in measuring absorbed dose and absorbed dose rate from neutron radiation should not exceed 3%, with a coverage factor of two. The article describes the composition and physical operating principles of GET 117-2023. The standard comprises new technical means: hardware and procedural reproduction systems; measurement methods and measuring instruments; standard neutron radiation system with automatic positioning of neutron radiation sources (UKPN-1MDA); a system for filling the chambers with gases. The authors present methods for reproducing the specified units and their functional dependence. The results of studying the metrological characteristics of GET 117-2023 are presented. These characteristics comply with modern domestic and international standards for accuracy and reproduction ranges. Measurement uniformity of clinical dosimeters required in neutron therapy is ensured. GET 117-2023 plays a key role in providing metrological support for dosimetric neutron radiation measurements in such fields as health care, ecology, nuclear power sector, industry, science, defense, and security, as well as in some other areas.
引用
收藏
页码：725 / 733
页数：8
相关论文