CT故障的诊疗和排除简介课件.ppt

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,*,CT故障的诊疗和排除简介,VCT,的系统结构简介,VCT Gantry,GT Table,GOC5,GOC6.5,NGPDU,2,VCT,的系统结构,3,VCT Components-Gantry,Gantry Structure,.35,秒,/,圈,2.5,圈,/,秒,5 G bps,的滑环设计,双通道，,duplicated hardware,机架内部的温度控制,全新的设计,送风机,/,加热器,-,顶部风扇,-DAS,风扇,208 vac,两相供电,New Fail Safe Design,New Performix,Pro tube,40 mm,覆盖范围,新型的旋转阳极适应更快的机架旋转,效率更高的分离散热器,Collimator,New design,40 mm,的覆盖范围,增加了中等体部的滤线器,Fail Safe Design,DAS/Detector,全新的设计,4,64 Channel HiLight Scintillator,+,+,+,Backlit Diode,High Density Inter-connect,Volara Digital DAS,FRDM,57 FRDMs,VCT,DAS /Detector,5,VCT Components-Table,VCT GT Table,的特性：,可承受更大的病人重量,-227kg,IMS,结构支持更大的扫描范围,支持新的应用,-high speed Helical,，,shuttle mode,采用,Linear Scale Tech,，扫描位置更精确,使用双速液压装置，使床的升降更平稳更快速,-20mm/s,40mm/s,完备的压力和触碰传感系统，保证安全的运行,6,VCT Components-Console,VIG3,VIG2,VIG3,VDARC,SDDA,Host,HP WS,ICOM,VCT GOC5,的特性：,三个内置,Volume,重建加速板的,VIG,内置双通道扫描数据接口板的,DARC,8x73G SCSI,磁盘阵列,-,用于存储扫描原始数据,HP XW8200,：,1X73G,操作系统和应用程序,2X73G,磁盘阵列,-,存储图象,2,X Intel,Dual,Core Zeon(,Irwindale),CPU,4X 1GB DDR2 400MHz,ECC,DIMM,2 Phases Power Distribution,7,VCT Components-Console,VRB,DIG,HSDA,Host,HP Z400,ICOM,2 Phases Power Distribution,VCT GOC6.5,的特性：,内置,GPU,重建加速板的,VRB,内置双通道扫描数据接口板,和,GPU,重建加速板,的,DIG,8x,250,GB(500GB)SATA,II,磁盘阵列,-,用于存储扫描原始数据,HP Z400,：,2,X146GB(300GB)SAS HD,程序和图像,1x Intel,Quad Core Xeon(Nehalem),-CPU,2X 2GB DDR3 1333MHz,ECC DIMM,8,出现故障时的信息收集,A.,屏幕弹出窗口：,B.,从系统运行日志中发现关键信息：,Date Time,Host:,Host name,Proc:,Process name,Error:,Error#,(File:,File name,Method:,Method name,Line#:Location ID),Function:Major:,Minor Function,Scan/Image Type:,Scan/image,Type Scan:,Scan Specifics,Image:,Image Specifics,Exception,Class,:,level Severity:Level,-Message Text Body-,事件发生时的系统时间,报出者,事件代码,扫描类型,/,数据信息,出错级别,:,Abort/Soft/Secondary,严重程度,:,Primary/Secondary,详细的信息记录,9,Sun Jul 12 10:50:15 2009,245043,Host:ct99Proc:scanmgr,File:scanmgr_events.cxxLine:2402,Function:System Control:Scan Control,Scan Type:Cine Scan:186/4/1,Scan Seq Id:449000,Scanning System Aborted Scanning,Sun Jul 12 10:50:15 2009,245213,Host:ct99Proc:scanmgr,File:scanmgr_events.cxxLine:2415,Function:System Control:Scan Control,Scan Type:Cine Scan:186/4/1,Scan Seq Id:449000,Scan was Paused/Aborted by Host,Sun Jul 12 10:50:15 2009,230000069,Host:darcProc:dataacq,File:vdip.cxxLine:802,Function:Data Acquisition:Scan Data Acquisition,Scan Type:Cine Scan:186/4/1,Scan Seq Id:449000,Two,or more,unexpected events were detected during scan data transfer.,Bit Count Event description,2 1 RX1 lost optical signal detection,Scan aborted.,Sun Jul 12 10:50:15 2009,260100152,2,Host:tgpProc:tgp_subsys,File:scIsrService.cLine:393,Sun Jul 12 10:50:15 2009,Host:Table Gantry Processor Ermes#:260100152,Exception Class:Abort Severity:Primary,File:scIsrService.c Line#:393,Function:System Monitoring:Xray Exposure Interlocks,Scan Type:Axial Scan:186/4/1,Exposure Interlock Opened.,The current loop from Gantry to PDU.,The cause of the failure:Console Relay.,10,针对故障的功能测试,-,高压系统的测试：,旋转阳极,/,灯丝,/,逆变器,/,球管,-,高压油箱,/,冷却系统,/,准直器,-,数据采集系统的测试：,DAS Tools/DDC/,数据采集通路,/,原始数据分析工具,/,图像分析工具,-,操作台的测试：,Host PC,测试,/DARC(DIG),测试,/IG(VRB),测试,/,磁盘阵列性能测试,/,外设性能测试,-,其它测试：,11,故障的修复,-,非配件损坏：,电气电路调整,/,机械调整,/,特性值调整,/,参数设置,/,软件环境维护,/,系统校准,-,故障排除后,规定的系统功能测试,/,系统安全运行的检查,-,配件,(,含消耗品）需要更换：,合格的备件,/,符合要求的工具,/,标准的更换步骤,/,每步要求指标的检测,/,更换备件后需要完成的调整和校正,VCT,一些故障的处理方法,系统启动后不能扫描,检查扫描架显示是否正常，如扫描架操作面板,E-off,指示闪动，按下,E-off,按键，若无改善,复位完成后的扫描架显示状态,如果系统启动后，床解锁指示始终闪动，说明床的控制电路没有完成复位,如果系统启动后，定位线指示始终闪动，说明扫描架旋转部分的控制电路没有完成复位,按下,PDU,的扫描架电源开关，,510,分钟后再开启扫描架电源，使扫描系统复位,操作面板上的扫描架复位指示灯应长亮,图象出现散射状、环形或带状伪影,检查,Mylar Ring/,头托,/,床板上是否留有造影剂,/,病人体液等,检查床垫下是否遗留散落的药械,检查扫描间温湿度是否超出范围：,20,26 30,60%RH,执行快速校准，形成新的校准文件,图象不能删除或病人信息不能编辑,删除图象时发现,Remove,不能使用,删除悬挂在队列中未完成任务：,图象处理,Queue,中的存档,/,网络传送,/,照相,扫描界面左上方的自动照相,不能刻录光盘,刻录光盘时报错：,检查是否在系统启动前打开,SCSI Tower,电源,检查刻录媒体的介质是否是,CDR,或,DVD-R/DVD-RW,SCSI Tower,图象不能传送到工作站或,PACS,服务器,系统显示网络传输错误：,从浏览器中选择远程主机，点击,Ping DICOM host,如果显示连接错误：,请检查两者之间的网线,/,交换机的连接状况，必要时重启交换机或工作站,/,服务器,网络连接正常时的显示：,谢谢！,