BS IEC 61435:2013 PDF

What is BS IEC 61435 - High-purity germanium crystals for radiation detectors about? BS IEC 61435 is an International Standard 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 3. BS IEC 61435 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 – 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 . Who is BS IEC 61435 - High-purity germanium crystals for radiation detectors for? BS IEC 61435 on nuclear instrumentation is useful for: