IEC 61976:2000 pdf free download

IEC 61976:2000 pdf free download Nuclear instrumentation – Spectrometry – Characterization of the spectrum background in HPGe gamma-ray spectrometry
1 Scope and object
This International Standard applies to gamma-ray spectra collected with hyperpure germanium detectors (HPGe) for use in gamma-ray spectrometry, especially for low-background detectors and measurements. This standard defines terms used to describe the background and the background spectrum itself. This standard does not present methods that describe how to reduce the background.
The object of this standard is to provide a uniform method for describing and characterizing the background in a spectrum from an HPGe detector. Definitions and methods are applied to define values for an HPGe detector that is considered to be used for low-background measurements. This approach provides both manufacturers and end users with a way to specify the low-background performance of the detector and allows the comparison of detectors used for these kinds of measurements.
The background and peak values determined by the procedures in this standard will provide the user with information regarding the expected background performance of the detector, in particular to allow for the comparison of several different detectors.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC 60050(393):1 996, International Electrotechnical Vocabulary (IEV) – Chapter 393: Nuclear instrumentation: Physical phenomena and basic concepts
IEC 60050(394):1 995, International Electrotechnical Vocabulary (IEV) – Chapter 394: Nuclear instrumentation: Instruments
3 Definitions
For the purpose of this International Standard, the following definitions apply:
3.1
spectrum (of an ionizing radiation)
distribution of the values of a specific radiation quantity, usually associated with energy [IEV 393-04-29]