IEC TR 61948-4:2006

Nuclear medicine instrumentation - Routine tests - Part 4: Radionuclide calibrators

This technical report covers the routine testing of radionuclide calibrators used in nuclear medicine. Such devices utilise ionization chambers of the well type (directly coupled to an appropriate electronic circuitry (IEC 61145)) and a direct readout in units of ACTIVITY. Requirements and specific methods to determine performance parameters are described in IEC 61303 and IEC 61145. These methods are primarily designed for acceptance testing.

General Information

• Status: Published
• Publication Date: 13-Nov-2006
• ICS: 11.040.50 - Radiographic equipment
• Technical Committee: SC 62C - Equipment for radiotherapy, nuclear medicine and radiation dosimetry
• Drafting Committee: WG 2 - TC 62/SC 62C/WG 2
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 22-Mar-2019

Relations

• Revised: IEC TR 61948-4:2019 - Nuclear medicine instrumentation - Routine tests - Part 4: Radionuclide calibrators
• Effective Date: 05-Sep-2023

Standards Content (Sample)

TECHNICAL IEC
REPORT TR 61948-4
First edition
2006-11
Nuclear medicine instrumentation –
Routine tests –
Part 4:
Radionuclide calibrators
Reference number
IEC/TR 61948-4:2006(E)
Publication numbering
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TECHNICAL IEC
REPORT TR 61948-4
First edition
2006-11
Nuclear medicine instrumentation –
Routine tests –
Part 4:
Radionuclide calibrators
© IEC 2006 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale L

International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – TR 61948-4 © IEC:2006(E)

CONTENTS
FOREWORD.3

INTRODUCTION.5

1 Scope and object.6

2 Normative references .6

3 Terms and definitions .6

4 Test methods .8

4.1 BACKGROUND RESPONSE .8
4.2 Constancy of instrument response.8
4.3 SYSTEM LINEARITY .8
4.4 Additional checks .8
4.5 Frequency of ROUTINE TESTS.8

Bibliography.10

Index of defined terms .11

Table 1 – Frequency of ROUTINE TESTS.9

TR 61948-4 © IEC:2006(E) – 3 –

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
NUCLEAR MEDICINE INSTRUMENTATION –

ROUTINE TESTS –
Part 4: Radionuclide calibrators

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested
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closely with the International Organization for Standardization (ISO) in accordance with conditions determined
by agreement between the two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
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6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC 61948-4, which is a technical report, has been prepared by subcommittee 62C:
Equipment for radiotherapy, nuclear medicine and radiation dosimetry, of IEC technical
committee 62: Electrical equipment in medical practice.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
62C/387/DTR 62C/401/RVC
Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.

– 4 – TR 61948-4 © IEC:2006(E)

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

In this technical report the following print types are used:

• requirements, compliance with which can be tested, and definitions: in roman type;

• explanation, advice, introductions, general statements, exceptions and reference: in smaller roman type;

• test specifications: in italic type;

• TERMS DEFINED IN CLAUSE 3 OF THIS TECHNICAL REPORT OR LISTED IN THE INDEX OF DEFINED

TERMS: SMALL CAPITALS.
A list of all parts of the IEC 61948 series, published under the general title Nuclear medicine

instrumentation – Routine tests, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under http://webstore.iec.ch in the
data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

TR 61948-4 © IEC:2006(E) – 5 –

INTRODUCTION
This technical report is based on the German Standard DIN 6855-11, Qualitätsprüfung

nuklearmedizinischer Messsysteme – Teil 11: Konstanzprüfung von Aktivimetern, the English

document Protocol for Establishing and Maintaining the Calibration of Medical Radio
...