1、TECHNICALREPORTIEC TR 61948-1First edition2001-02Nuclear medicine instrumentation Routine tests Part 1:Radiation counting systemsInstrumentation en mdecine nuclaire Essais de routine Partie 1:Systmes compteurs de rayonnementReference numberIEC/TR 61948-1:2001(E)LICENSED TO MECON Limited.-RANCHI/BANG
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9、tion en mdecine nuclaire Essais de routine Partie 1:Systmes compteurs de rayonnementPRICE CODE IEC 2001 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 i
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11、D TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 TR 61948-1 IEC:2001(E)CONTENTSPageFOREWORD.3Clause1Scope and object.52Reference documents.53Terminology and definitions.54Test methods.74.1ENERGY CALIBRATION.74.2Sensitivity check.84.3Preset w
12、indow setting.84.4ENERGY RESOLUTION.84.5COUNTING PRECISION.84.6Background.84.7Frequency of ROUTINE TESTS.8Annex A Index of defined terms.10LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TR 61948-1 IEC:2001(E)3 INTERNATIONAL ELECTROTEC
13、HNICAL COMMISSION_NUCLEAR MEDICINE INSTRUMENTATION ROUTINE TESTS Part 1:Radiation counting systemsFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardization comprisingall national electrotechnical committees(IEC National Committees).The object of the
14、IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields.Tothis end and in addition to other activities,the IEC publishes International Standards.Their preparation isentrusted to technical committees;any IEC National Committee in
15、terested in the subject dealt with mayparticipate in this preparatory work.International,governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation.The IEC collaborates closely with the InternationalOrganization for Standardization(ISO)in accordance wit
16、h conditions determined by agreement between thetwo organizations.2)The formal decisions or agreements of the IEC on technical matters express,as nearly as possible,aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3)The documents produced have the form of recommendations for international use and are published in the formof standards,technical specifications,technical reports or guides and they
