UPDATE OF X RAY AND GAMMA RAY DECAY DATA STANDARDS FOR DETECTOR CALIBRATION AND OTHER APPLICATIONS - VOLUME 2 - DATA SELECTION, ASSESSMENT AND EVALUATION PROCEDURES

Oct 3, 2026

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This volume updates standards for selecting, assessing, and evaluating decay data used to calibrate X- and gamma-ray detectors. It addresses how discrepancies between independently compiled evaluator recommendations can propagate into detector-efficiency calibration and downstream applications such as nuclear medicine and environmental monitoring, affecting radionuclide decay characteristics. It also reflects IAEA efforts to reduce uncertainties through coordinated research, providing guidance essential for high-quality efficiency calibration based on photon intensities.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages181

Reading Time7 h 36 min

AccessFree to download

Volume 2 Overview

Data selection, assessment and evaluation procedures

Foreword: purpose and importance

Background on coordinated research and discrepancies

UPDATE OF X RAY AND GAMMA RAY DECAY DATA STANDARDS FOR DETECTOR CALIBRATION AND OTHER APPLICATIONS VOLUME 2 The following States are Members of the International Atomic Energy Agency: AFGHANISTAN ALBANIA ALGERIA ANGOLA ARGENTINA ARMENIA AUSTRALIA AUSTRIA AZERBAIJAN BANGLADESH BELARUS BELGIUM BELIZE BENIN BOLIVIA BOSNIA AND HERZEGOVINA BOTSWANA BRAZIL BULGARIA BURKINA FASO CAMEROON CANADA CENTRAL AFRICAN REPUBLIC CHAD CHILE CHINA COLOMBIA COSTA RICA CÔTE D’IVOIRE CROATIA CUBA CYPRUS CZECH REPUBLIC DEMOCRATIC REPUBLIC OF THE CONGO DENMARK DOMINICAN REPUBLIC ECUADOR EGYPT EL SALVADOR ERITREA ESTONIA ETHIOPIA FINLAND FRANCE GABON GEORGIA GERMANY GHANA GREECE GUATEMALA HAITI HOLY SEE HONDURAS HUNGARY ICELAND INDIA INDONESIA IRAN, ISLAMIC REPUBLIC OF IRAQ IRELAND ISRAEL ITALY JAMAICA JAPAN JORDAN KAZAKHSTAN KENYA KOREA, REPUBLIC OF KUWAIT KYRGYZSTAN LATVIA LEBANON LIBERIA LIBYAN ARAB JAMAHIRIYA LIECHTENSTEIN LITHUANIA LUXEMBOURG MADAGASCAR MALAWI MALAYSIA MALI MALTA MARSHALL ISLANDS MAURITANIA MAURITIUS MEXICO MONACO MONGOLIA MONTENEGRO MOROCCO MOZAMBIQUE MYANMAR NAMIBIA NETHERLANDS NEW ZEALAND NICARAGUA NIGER NIGERIA NORWAY PAKISTAN PALAU PANAMA PARAGUAY PERU PHILIPPINES POLAND PORTUGAL QATAR REPUBLIC OF MOLDOVA ROMANIA RUSSIAN FEDERATION SAUDI ARABIA SENEGAL SERBIA SEYCHELLES SIERRA LEONE SINGAPORE SLOVAKIA SLOVENIA SOUTH AFRICA SPAIN SRI LANKA SUDAN SWEDEN SWITZERLAND SYRIAN ARAB REPUBLIC TAJIKISTAN THAILAND THE FORMER YUGOSLAV REPUBLIC OF MACEDONIA TUNISIA TURKEY UGANDA UKRAINE UNITED ARAB EMIRATES UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND UNITED REPUBLIC OF TANZANIA UNITED STATES OF AMERICA URUGUAY UZBEKISTAN VENEZUELA VIETNAM YEMEN ZAMBIA ZIMBABWE The Agency’s Statute was approved on 23 October 1956 by the Conference on the Statute of the IAEA held at United Nations Headquarters, New York; it entered into force on 29 July 1957. The Headquarters of the Agency are situated in Vienna. Its principal objective is “to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world’’. UPDATE OF X RAY AND GAMMA RAY DECAY DATA STANDARDS FOR DETECTOR CALIBRATION AND OTHER APPLICATIONS In two volumes VOLUME 2 DATA SELECTION, ASSESSMENT AND EVALUATION PROCEDURES INTERNATIONAL ATOMIC ENERGY AGENCY VIENNA, 2007 COPYRIGHT NOTICE All IAEA scientific and technical publications are protected by the terms of the Universal Copyright Convention as adopted in 1952 (Berne) and as revised in 1972 (Paris) . The copyright has since been extended by the World Intellectual Property Organization (Geneva) to include electronic and virtual intellectual property. Permission to use whole or parts of texts contained in IAEA publications in printed or electronic form must be obtained and is usually subject to royalty agreements. Proposals for non-commercial reproductions and translations are welcomed and considered on a case-by-case basis. Enquiries should be addressed to the IAEA Publishing Section at: Sales and Promotion, Publishing Section International Atomic Energy Agency Wagramer Strasse 5 P.O. Box 100 1400 Vienna, Austria fax: +43 1 2600 29302 tel.: +43 1 2600 22417 email: [sales.publications@iaea.org](sales.publications@iaea.org) [http://www.iaea.org/books](http://www.iaea.org/books) © IAEA, 2007 Printed by the IAEA in Austria May 2007 STI/PUB/1287 IAEA Library Cataloguing in Publication Data Update of X Ray and Gamma Ray Decay Data Standards for Detector Calibration and Other Applications.— Vienna : International Atomic Energy Agency, 2007. 2 v. ; 24 cm. STI/PUB/1287 ISBN 92–0–113606–4 Includes bibliographical references. v. 1. - Recommended Decay Data, High Energy Gamma Ray Standards and Angular Correlation Coefficients — v. 2. - Data Selection, Assessment and Evaluation Procedures. 1. Gamma

FAQs

Why do small deviations in recommended decay data matter for detector calibration?

Small deviations can significantly change the decay characteristics of radionuclides used as standards, which then propagates into detector efficiency calibration measurements and subsequent applications.

What is the main goal of the IAEA coordinated research project described here?

To reduce discrepancies and uncertainties in decay data parameters judged important for detector efficiency calibration by improving measurements and evaluation of X and gamma-ray standards.

Which topic does Volume 2 focus on?

Data selection, assessment, and evaluation procedures for decay data used in detector calibration.

Oct 3, 2026

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