17.240;27.120.01 标准查询与下载

IEC 61435:2013 核仪器 放射探测器用高纯度锗晶体 基本特性的测量方法

Scope and object This International Standard is applicable to high-purity germanium crystals used for radiation detectors for gamma-rays and X-rays. Such germanium is monocrystalline and has a net concentration of fewer than 1011 electrically active impurity centers per cm3@ usually of the order of 1010 cm?C3. This International Standard specifies terminology and test methods for measurements of basic characteristics of high-purity germanium crystals. These characteristics are net electrically active impurity concentrations (hereinafter (NA ?C ND))@ deep-level impurity-centre concentration and crystallographic quality of crystals. These test methods are not mandatory but have found general use in the industry and provide verifiable and desired information to the detector manufacturer. Test methods for completed assembled germanium detectors are given in IEC 60973 and IEC 60759.

Nuclear instrumentation - High-purity germanium crystals for radiation detectors - Measurement methods of basic characteristics

NF M60-812-1:2006 核能.测量环境放射性.第1部分:用环境碳样品测量空气传播碳14测定体积活性指南

Nuclear Energy - Measurement of environmental radioactivity - Part 1 : guide for the measurement of airborne C14 volumetric activity from an atmospheric sample.

NF M60-812-2:2006 核能.测量环境放射性.第2部分:在环境碳材料中用液体闪烁法测量碳14活性

Nuclear energy - Measurement of environmental radioactivity - Part 2 : measurement of carbon 14 activity by liquid scintillation in carbon matrices in the environment.

BS 5251:1975 电源控制的核仪表的模拟电压范围和逻辑电平规范

Applies to all such instruments used in research laboratories, radiation detectors excepted. Specifies voltage ranges and maximum output voltages for analogue signals, output impedances for analogue circuits and digital logic levels for binary signals.

Specification for analogue voltage ranges and logic levels for mains operated nuclear instruments