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1、BRITISH STANDARD BS 6058:1989 EN 60613: 1990 IEC 613:1989 Incorporating Amendment No. 1 Method of Specifying and verifying the characteristics of rotating anode X-ray tubes and X-ray tube assemblies used in medical diagnosis This European Standard EN 60613:1990 has the status of a British Standard L
2、icensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 01:26:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6058:1989 This British Standard, having been prepared under the direction of the Health Care Standards Policy Committee, was published under the authority of the Board of BSI and comes into e
3、ffect on 30 March 1990 BSI 12-1999 First published January 1981 Second edition March 1990 The following BSI references relate to the work on this standard: Committee reference HCC/71 Draft for comment 87/52124 DC ISBN 0 580 18078 6 Committees responsible for this British Standard The preparation of
4、this British Standard was entrusted by the Health Care Standards Policy Committee (HCC/-) to Technical Committee HCC/71, upon which the following bodies were represented: Association of X-ray Equipment Manufacturers (BEAMA Ltd.) British Institute of Radiology College of Radiographers Department of H
5、ealth Institute of Physical Sciences in Medicine (IPSM) Society of X-ray Technology Amendments issued since publication Amd. No.Date of issueComments 6761September 1991 Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 01:26:53 GMT+00:00 2006, Uncontrolled
6、Copy, (c) BSI BS 6058:1989 BSI 12-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 606133 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 01:26:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6058:
7、1989 ii BSI 12-1999 National foreword This British Standard has been prepared under the direction of the Health Care Standards Policy Committee and is identical with IEC 613:1989 “Electrical, thermal and loading characteristics of rotating anode X-ray tubes for medical diagnosis”, published by the I
8、nternational Electrotechnical Commission (IEC). In 1990 the European Committee for Electrotechnical Standardization (CENELEC) accepted IEC 613:1989 as European Standard EN 60613:1990. This revision of BS 6058 differs from the 1981 edition in that a method for determining loading time has been introd
9、uced, the method for determining decreasing input power ratings has been deleted, the method for testing single load ratings has been relocated to an annex that gives guidance, and the definitions of many of the terms used in the standard have been taken from BS 6641:1985. On publication of this sta
10、ndard BS 6058:1981 is withdrawn. Textual error. When adopting the text of the International Standard, the textual error given below was discovered. It has been marked in the text and has been reported to IEC in a proposal to amend the text of the International Standard. In 9.1.4, line 3 the date of
11、IEC 613 is given incorrectly as 1988. The correct date of publication is 1989. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself co
12、nfer immunity from legal obligations. Cross-references International StandardCorresponding British Standard BS 5724 Medical electrical equipment IEC 601-1:1988Part 1:1989 Specification for general safety requirements (Identical) IEC 601-2-7:1987Section 2.7:1987 Specification for high-voltage generat
13、ors of diagnostic X-ray generators (Identical) IEC 788:1984BS 6641:1985 Glossary of medical radiology terms (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 12, an inside back cover and a back cover. This standar
14、d has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 01:26:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EURO
15、PISCHE NORM EN 60613 December 1990 UDC 615.849.114:616-073.75:621.386.2 Descriptors: Medical electrical equipment, X-ray equipment, radiodiagnostic X-ray generator, high voltage generators, X-ray tube assemblies, rotating anode X-ray tubes, definitions, electrical characteristics, thermal characteri
16、stics English version Electrical, thermal and loading characteristics of rotating anode X-ray tubes for medical diagnosis (IEC 613:1989) Caractristiques lectriques, thermiques et de charge des tubes radiognes anode tournante pour diagnostic mdical (CEI 613:1989) Elektrische, thermische und Belastung
17、s- Kennwerte von Drehanoden-Rntgenrhren fr die medizinische Diagnostik (IEC 613:1989) This European Standard was approved by CENELEC on 11 September 1990. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard th
18、e status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, Ge
19、rman). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmar
20、k, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnis
21、che Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1990 Copyright reserved to CENELEC members Ref. No. EN 60613:1990 E Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 01:26:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60613:1990 BSI 12-1999 2 Foreword The CENELEC questio
22、nnaire procedure, performed for finding out whether or not the International Standard IEC 613:1989 could be accepted without textual changes, has shown that no CENELEC common modifications were necessary for the acceptance as European Standard. The reference document was submitted to the CENELEC mem
23、bers for formal vote and was approved by CENELEC as EN 60613 on 11 September 1990. The following dates were fixed: Annex designated “normative” is part of the body of the standard. In this standard, Annex ZA is normative. For products which have complied with the relevant national standard before 19
24、91-06-15, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 1996-06-15. Endorsement notice The text of the International Standard IEC 613:1989 was approved by CENELEC as a European Standard without any modification. Contents Pa
25、ge Foreword2 1Scope and object3 1.1Scope3 1.2Object3 2Introduction3 3Terminology3 3.1Degree of requirements3 3.2Definitions3 4Electrical characteristics of an X-RAY TUBE3 4.1X-ray tube voltage3 4.2Nominal X-ray tube voltage3 4.3Limited X-ray tube voltage3 4.4X-ray tube current3 4.5Cathode emission c
26、haracteristic4 Page 5LOADING of an X-RAY TUBE4 5.1Loading4 5.2X-ray tube load4 5.3Loading factor4 5.4Loading time4 6Input power4 6.1Anode input power4 6.2Nominal anode input power4 6.3Equivalent anode input power5 6.4X-ray tube assembly input power5 7Thermal characteristics of an ANODE5 7.1Anode hea
27、t content5 7.2Maximum anode heat content5 7.3Anode heating curve5 7.4Anode cooling curve5 7.5Verification5 8Thermal characteristics of an X-RAY TUBE ASSEMBLY6 8.1X-ray tube assembly heat content6 8.2Maximum X-ray tube assembly heat content6 8.3X-ray tube assembly heating curve6 8.4X-ray tube assembl
28、y cooling curve7 8.5Maximum continuous heat dissipation7 9RADIOGRAPHIC RATINGS of an X-RAY TUBE8 9.1Single load rating8 9.2Serial load rating8 9.3Decreasing input power rating8 Annex A Terminology10 Annex B Guidance on type testing10 Annex ZA (normative) Other international publications quoted in th
29、is standard with the references of the relevant European publications11 Figure 1 Verification of the MAXIMUM ANODE HEAT CONTENT6 Figure 2 Verification of the ANODE COOLING CODE7 Table 1 List of the characteristic quantities and their units9 latest date of publication of an identical national standar
30、d(dop) 1991-06-15 latest date of withdrawal of conflicting national standards(dow) 1991-06-15 Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 01:26:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60613:1990 BSI 12-19993 1 Scope and object 1.1 Scope This International Standard applies to ROTA
31、TING ANODE X-RAY TUBES and X-RAY TUBE ASSEMBLIES intended for use in medical diagnosis. 1.2 Object This International Standard covers definitions of electrical, thermal and loading characteristics of the devices with relation to their behaviour during and after energization and, where appropriate, m
32、ethods of presentation, determination and verification of these characteristics. 2 Introduction This International Standard is intended to provide a common basis for the indication of data on ROTATING ANODE X-RAY TUBES and X-RAY TUBE ASSEMBLIES and to facilitate the application of RADIOGRAPHIC RATIN
33、GS by the user, basing these on standardized conditions as given in the ACCOMPANYING DOCUMENTS. 3 Terminology 3.1 Degree of requirements In this International Standard the auxiliary verb 3.2 Definitions Definitions of terms printed in small capital letters and not contained in this International Sta
34、ndard are used as given in IEC 788: Medical Radiology Terminology, first edition 1984. See Annex A, Terminology. The numbering rm- in the sub-clauses headed “Definition” refers to IEC 788. NOTEThe French terms in Sub-clauses 7.2, 8.1 and 8.2 and the definitions in Sub-clauses 4.4.1 and 6.2.1 deviate
35、 from those given in IEC 788, which latter will be revised accordingly. 4 Electrical characteristics of an X-RAY TUBE 4.1 X-ray tube voltage 4.1.1 Definition rm-36-02 Potential difference applied to an X-RAY TUBE between the ANODE and the CATHODE. 4.1.2 Units X-RAY TUBE VOLTAGE shall be given as the
36、 peak value, in KILOVOLTS. 4.2 Nominal X-ray tube voltage 4.2.1 Definition rm-36-03 Highest permitted X-RAY TUBE VOLTAGE for specific operating conditions. 4.2.2 Units NOMINAL X-RAY TUBE VOLTAGE shall be given as the peak value, in KILOVOLTS. 4.2.3 Presentation of data Values shall be given for the
37、maximum permitted X-RAY TUBE VOLTAGE between ANODE and CATHODE. Values may be given for the highest permitted potential difference between ANODE and earth and between CATHODE and earth. Unless otherwise specified, the above values are valid for all specified operating conditions. NOTE 1For different
38、 operating conditions of the X-RAY TUBE, for example continuous operation, intermittent operation, short-time operation, there may be different values of the above NOMINAL X-RAY TUBE VOLTAGE. NOTE 2In some cases the value of the NOMINAL X-RAY TUBE VOLTAGE during on-load conditions (which characteriz
39、es essentially the RADIATION ENERGY of the emitted X-RADIATION) and the value during off-load conditions may be different. 4.3 Limited X-ray tube voltage 4.3.1 Definition rm-36-04 In an X-RAY INSTALLATION, a NOMINAL X-RAY TUBE VOLTAGE limited for a particular combination. 4.4 X-ray tube current 4.4.
40、1 Definition (rm-36-07; see also 3.2) Electric current through an X-RAY TUBE. Unless otherwise specified, values of X-RAY TUBE CURRENT correspond to the electron beam reaching the TARGET of the X-RAY TUBE. 4.4.2 Units X-RAY TUBE CURRENT shall be given as the average value in MILLIAMPERES. “shall”imp
41、lies that compliance with a requirement is mandatory for compliance with the standard; “should” implies that compliance with a requirement is strongly recommended but is not mandatory for compliance with the standard; “may”implies that compliance with a requirement is permitted to be accomplished in
42、 a particular manner, for compliance with the standard. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 01:26:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60613:1990 4 BSI 12-1999 4.5 Cathode emission characteristic 4.5.1 Definition rm-36-20 Dependence of the X-RAY TUBE CURRENT on variabl
43、es, for example FILAMENT CURRENT, X-RAY TUBE VOLTAGE. 4.5.2 Presentation of data CATHODE EMISSION CHARACTERISTICS are given as a family of curves in which the X-RAY TUBE CURRENT is shown as a function of the FILAMENT CURRENT and, if appropriate, of further relevant characteristics of the CATHODE, ea
44、ch curve corresponding to an X-RAY TUBE VOLTAGE and a PERCENTAGE MODULATION of stated value and waveform, and other factors as appropriate. In addition, the relationship between FILAMENT CURRENT and filament voltage shall be indicated and, if appropriate, also its dependence on other characteristics
45、 of the CATHODE. 5 LOADING of an X-RAY TUBE 5.1 Loading 5.1.1 Definition rm-36-09 In an X-RAY GENERATOR, act of supplying electrical energy to the ANODE of an X-RAY TUBE. 5.2 X-ray tube load 5.2.1 Definition rm-36-21 Electrical energy supplied to an X-RAY TUBE expressed by a combination of values of
46、 LOADING FACTORS. 5.2.2 Presentation of data Where appropriate, the total X-RAY TUBE LOAD shall be specified by giving, for each energy level, sufficient values of the appropriate LOADING FACTORS. 5.3 Loading factor 5.3.1 Definition rm-36-01 Factor influencing by its value the X-RAY TUBE LOAD, for e
47、xample X-RAY TUBE CURRENT, LOADING TIME, EQUIVALENT ANODE INPUT POWER, X-RAY TUBE VOLTAGE and PERCENTAGE RIPPLE. 5.4 Loading time 5.4.1 Definition rm-36-10 Time, determined according to a specific method, during which the ANODE INPUT POWER is applied to the X-RAY TUBE. 5.4.2 Units The LOADING TIME s
48、hall be given in SECONDS. 5.4.3 Determination (see IEC 601-2-7, Sub-clause 50.106.3) Generally the LOADING TIME shall be determined as the time interval between: the time that the potential difference in the high-voltage circuit has risen the first time to a value above 65 %, but not higher than 85
49、%, of the peak value and the time at which it finally drops below the same value. For systems incorporating electronic control in the high-voltage circuit by means of a grid in an electronic tube or in the X-RAY TUBE, the LOADING TIME may be determined as the time interval between the instant the timing device generates the signal to start the LOADING and the instant it generates the signal to terminate the LOADING. In ONE and TWO PEAK HIGH-VOLTAGE GENERATORS, instead of LOADING TIME the IRRADIATION TIME may be determined by measuring t