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IEC 61452:2021

(Main)

Nuclear instrumentation - Measurement of activity or emission rate of gamma-ray emitting radionuclides - Calibration and use of germanium-based spectrometers

Nuclear instrumentation - Measurement of activity or emission rate of gamma-ray emitting radionuclides - Calibration and use of germanium-based spectrometers

IEC 61452:2021 establishes methods for the calibration and use of high purity germanium spectrometers for the measurement of photon energies and emission rates over the energy range from 45 keV to approximately 3 000 keV and the calculation of radionuclide activities from these measurements. Minimum requirements for automated peak finding are stated. This document establishes methods for measuring the full-energy peak efficiency with calibrated sources.
The object of this document is to provide a basis for the routine calibration and use of germanium (HPGe) semiconductor detectors for the measurement of gamma-ray emission rates and thereby the activities of the radionuclides in a sample. It is intended for use by persons who have an understanding of the principles of HPGe gamma-ray spectrometry and are responsible for the development of correct procedures for the calibration and use of such detectors. This document is primarily intended for routine analytical measurements. Related documents are IEC 60973 and ISO 20042.
This second edition cancels and replaces the first edition published in 1995. This edition includes the following significant technical changes with respect to the previous edition:
a. title modified;
b. additional information on digital electronics;
c. information on Monte Carlo simulations;
d. reference to detection limits calculations.

General Information

Status
Published
Publication Date
03-Jun-2021
ICS
17.240 - Radiation measurements
Technical Committee
TC 45 - Nuclear instrumentation
Drafting Committee
WG 9 - TC 45/WG 9
Current Stage
PPUB - Publication issued
Start Date
11-Jun-2021
Completion Date
04-Jun-2021
Ref Project

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IEC 61452:2021 - Nuclear instrumentation - Measurement of activity or emission rate of gamma-ray emitting radionuclides - Calibration and use of germanium-based spectrometersIEC 61452:2021 - Nuclear instrumentation - Measurement of activity or emission rate of gamma-ray emitting radionuclides - Calibration and use of germanium-based spectrometers
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IEC 61452:2021 - Nuclear instrumentation - Measurement of activity or emission rate of gamma-ray emitting radionuclides - Calibration and use of germanium-based spectrometers
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IEC 61452
®

Edition 2.0 2021-06
INTERNATIONAL
STANDARD

colour
inside


Nuclear instrumentation – Measurement of activity or emission rate of gamma-
ray emitting radionuclides – Calibration and use of germanium-based
spectrometers

IEC 61452:2021-06(en)

---------------------- Page: 1 ----------------------
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IEC 61452

®


Edition 2.0 2021-06




INTERNATIONAL



STANDARD








colour

inside










Nuclear instrumentation – Measurement of activity or emission rate of gamma-

ray emitting radionuclides – Calibration and use of germanium-based

spectrometers

























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 17.240 ISBN 978-2-8322-9813-8




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® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 3 ----------------------
– 2 – IEC 61452:2021 © IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms, definitions and symbols. 10
3.1 Terms and definitions . 10
3.2 Symbols . 15
4 Installation of instrumentation . 16
5 Peak analysis and calibration procedures . 16
5.1 Energy calibration . 16
5.2 Energy resolution calibration . 17
5.3 Peak-finding algorithm . 17
...

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