bsen60601-1-3-20xx医疗电气设备基本安全和重要性能的通用要求附属标准x射线诊断设备的辐射防护

bsen60601-1-3-20xx医疗电气设备基本安全和重要性能的通用要求附属标准x射线诊断设备的辐射防护内容摘要：

................ 24 Indication of LOADING STATE ....................................................................... 24 Indication of LOADING FACTORS and MODES OF O P E RA TI O N............................ 24 Indication of automatic modes ................................................................... 24 Dosimetric indications................................................................................ 25 AUTOMATIC CONTROL SYSTEM .................................................................................. 25 SCATTERED RADIATION reduction ............................................................................. 25 Imaging performance ............................................................................................ . 25 General ..................................................................................................... 25 System performance .................................................................................. 25 Nominal focal spot value............................................................................ 26 RADIATION DETECTOR or XRAY IMAGE RECEPTOR .......................................... 26 7 RADIATION QUALITY .......................................................................................................... 26 – 5 – BS EN 6060113:2020 HALFVALUE LAYERS and TOTAL FILTRATION in XRAY EQUIPMENT ............................... 26 W aveform of the XRAY TUBE VOLTAGE................................................................ 27 Indication of FILTER properties ............................................................................... 27 Test for FILTRATION by irremovable materials ......................................................... 28 Test for ADDED FILTERS and materials ..................................................................... 28 Test for HALFVALUE LAYER ..................................................................................... 28 8 Limitation of the extent of the XRAY BEAM and relationship between XRAY FIELD and IMAGE RECEPTION AREA ............................................................................................. 28 General ................................................................................................................ . 28 Enclosure of XRAY TUBES ...................................................................................... 28 Limiting DIAPHRAGM in XRAY TUBE ASSEMBLIES ....................................................... 29 Confinement of EXTRAFOCAL RADIATION ................................................................. 29 Relationship between XRAY FIELD and IMAGE RECEPTION AREA ............................... 29 General ..................................................................................................... 29 * FOCAL SPOT TO IMAGE RECEPTOR DISTANCE ................................................ 29 Correspondence between XRAY FIELD and EFFECTIVE IMAGE RECEPTION AREA ......................................................................................... 29 Positioning of the PATIENT and restriction of the irradiated area.................. 30 9 FOCAL SPOT TO SKIN DISTANCE .......................................................................................... 30 General ................................................................................................................. 30 Information in the ACCOMPANYING DOCUMENTS ........................................................ 30 10 ATTENUATION of the XRAY BEAM between the PATIENT and the XRAY IMAGE RECEPTOR ..................................................................................................... .................. 30 General ................................................................................................................. 30 Information in the ACCOMPANYING DOCUMENTS ........................................................ 30 11 Protection against RESIDUAL RADIATION ............................................................................ 31 12 * Protection against LEAKAGE RADIATION .......................................................................... 31 General ................................................................................................................. 31 Mounting of XRAY SOURCE ASSEMBLIES and XRAY IMAGING ARRANGEMENTS ............ 31 Statement of reference LOADING conditions ........................................................... . 32 LEAKAGE RADIATION in the LOADING STATE ............................................................... 32 LEAKAGE RADIATION when not in the LOADING STATE ................................................ 33 13 Protection against STRAY RADIATION ................................................................................ 33 General ................................................................................................................. 33 Control of XRAY EQUIPMENT from a PROTECTED A REA.............................................. 33 Protection by distance ........................................................................................... 34 * Designated SIGNIFICANT ZONES OF OCCUPANCY ..................................................... 34 Handgrips and control devices .............................................................................. 35 * Test for STRAY RADIATION ..................................................................................... 35 Annex A (informative) General guidance and rationale ......................................................... 37 Annex B (normative) Values of the series R39。 10 and R39。 20, ISO 497 .......................................39 Annex C (informative) Mapping between this Edition 2 of IEC 6060113 and Edition 1 .。