1、INTERNATIONALSTANDARDIEC61223-2-11First edition1999-09Evaluation and routine testing inmedical imaging departments Part 2-11:Constancy tests Equipment for general direct radiographyEssais dvaluation et de routine dansles services dimagerie mdicale Partie 2-11:Essais de constance Appareils de radiogr
2、aphie gnrale directeReference numberIEC 61223-2-11:1999(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.NumberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.Consolidated publicationsCo
3、nsolidated versions of some IEC publications including amendments areavailable.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to thebase publication,the base publication incorporating amendment 1 and the basepublication incorporating amendments 1 and 2.Validity of this publicationThe
4、 technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to the date of the reconfirmation of the publication is availablein the IEC catalogue.Information on the subjects under consideration and wo
5、rk in progress undertakenby the technical committee which has prepared this publication,as well as the listof publications issued,is to be found at the following IEC sources:IEC web site*Catalogue of IEC publicationsPublished yearly with regular updates(On-line catalogue)*IEC BulletinAvailable both
6、at the IEC web site*and as a printed periodicalTerminology,graphical and letter symbolsFor general terminology,readers are referred to IEC 60050:InternationalElectrotechnical Vocabulary(IEV).For graphical symbols,and letter symbols and signs approved by the IEC forgeneral use,readers are referred to
7、 publications IEC 60027:Letter symbols to beused in electrical technology,IEC 60417:Graphical symbols for use on equipment.Index,survey and compilation of the single sheets and IEC 60617:Graphical symbolsfor diagrams.*See web site address on title page.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR
8、INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONALSTANDARDIEC61223-2-11First edition1999-09Evaluation and routine testing inmedical imaging departments Part 2-11:Constancy tests Equipment for general direct radiographyEssais dvaluation et de routine dansles services dima
9、gerie mdicale Partie 2-11:Essais de constance Appareils de radiographie gnrale directePRICE CODE IEC 1999 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission
10、 in writing from the publisher.International Electrotechnical Commission3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300e-mail:inmailiec.ch IEC web site http:/www.iec.chWFor price,see current catalogue Commission Electrotechnique Internationale International Electrotechnical CommissionLICEN
11、SED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61223-2-11 IEC:1999(E)CONTENTSPageFOREWORD.3Clause1Scope and object.51.1Scope.51.2Object.52Normative references.63Terminology.63.1Degree of requirements.63.2Use of terms.74General aspects of
12、 CONSTANCY TESTS.74.1General conditions affecting test procedures.84.2Establishment of BASELINE VALUES.84.3Frequency of CONSTANCY TESTS.84.4Identification of equipment,instrumentation and test conditions.84.5Measured functional parameters.95Performance tests.105.1RADIATION output from the X-RAY SOUR
13、CE ASSEMBLY.105.2RADIATION input to the IMAGE RECEPTION AREA.125.3Geometric characteristics.145.4Resolution of high-contrast detail.195.5Variation in optical density throughout a RADIOGRAM.206Statement of compliance.22Figure 1 Example of a film marker TEST DEVICE.23Figure 2 Example of a TEST DEVICE
14、for perpendicular position.24Figure 3 Example of an alignment TEST DEVICE.25Figure 4 Examples of a high-contrast TEST DEVICE.26Figure 5 Arrangements for testing geometric conditions.28Figure 6 Geometric coincidences.29Annex A(normative)Terminology Index of defined terms.30Annex B(informative)Example
15、 of a form for the standardized test report.32Annex C(informative)Guidance on action to be taken.35Annex D(normative)PHANTOMS and TEST DEVICES.36LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.61223-2-11 IEC:1999(E)3 INTERNATIONAL ELEC
16、TROTECHNICAL COMMISSIONEVALUATION AND ROUTINE TESTING IN MEDICAL IMAGING DEPARTMENTS Part 2-11:Constancy tests Equipment for general direct radiographyFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardization comprisingall national electrotechnical committees(IEC National Committees).The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields.Tothis end and in a
