GECT原理機(jī)構(gòu)與維護(hù)raining

LightSpeedSystemHighlights1.Gantry2.Console3.Table4.PDU1234StabilizerCameraAW操作臺(tái)(CONSOLE):主計(jì)算機(jī)(HPXW8000XW8200):系統(tǒng)控制和圖像存儲(chǔ)重建計(jì)算機(jī)(DARC):把原始數(shù)據(jù)重建為圖像掃描架(GANTRY):靜止部分(STATIONARY):底座和支架傾斜機(jī)構(gòu)旋轉(zhuǎn)驅(qū)動(dòng)刷架靜止部分控制電路旋轉(zhuǎn)部分(ROTATIONARY)高壓發(fā)生器球管準(zhǔn)直器探測器及數(shù)據(jù)采集滑環(huán)旋轉(zhuǎn)部分控制電路病人床(TABLE)床體升降:床板進(jìn)出:電源分配柜(PDU:PowerDistributionUnit)電源變壓器:適應(yīng)世界各地不同電壓整流濾波:供給高壓發(fā)生器650伏直流其他部分交流電壓(斷路器,接觸器,接線端)控制電路ConsoletopviewConsoleConsolecontent

StationaryBaseAxialDriveDetectorDASLeftChassisDASCenterChassisDASRightChassisAnodeInverterCathodeInverterHEMRCSTCX-RayTubeSlipringGantryFansOBCTiltPotentiometerLSPGantryConsumerandHighvaluepartsSlipringPDUFrontandBackViewPowerDistributionUnitPowertoGantry,TableandConsole“Hercules”CTTubeTubeOverviewMostpowerfulX-raytubeintheworld!KeyfeaturesMonopolar8kWsteadystate8MHUtargetHeatdissipation107kgPumpandheatexchangerseparatefromtubeGeneratormaindiagramDetectordevelopmentInonerotation,thesystemcanrecordupto4slices.Innormalimaging4slicesaretakenbytying1,2,3or4adjacentcellstogetherinthez-axis.Theslicethicknesscanbe1.25,2.5,3.75or5mmthick.TheImageprocessinghardwarecancreateimagesofvaryingthickness'bycombiningthe4scanrawdatafiles.Thetechnologistcanchoosetocreateone,two,orfourimagesofdifferentthicknessduringscanprotocolselection.

DetectoroutputtoDAS

CT圖像質(zhì)量檢查

圖像質(zhì)量指標(biāo)空間分辨率(球管焦點(diǎn)尺寸,探測器單元尺寸)密度分辨率(X光劑量,重建算法等)CT值精度噪聲沒有偽影如何保證圖像質(zhì)量球管預(yù)熱定期校準(zhǔn)（FastCalibration)保證室內(nèi)溫度和濕度基本恒定和清潔使用適合的掃描參數(shù)定期對設(shè)備進(jìn)行保養(yǎng)ServiceDesktop-UtilitiesSystemStatenowhere

CT的定期保養(yǎng)

維護(hù)保養(yǎng)的作用:檢查系統(tǒng)安全性能,保證病人安全.周期性校準(zhǔn),保證圖像質(zhì)量.部件檢測,清除灰塵,保證系統(tǒng)運(yùn)轉(zhuǎn)正常.軟件維護(hù),備份相關(guān)數(shù)據(jù).

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