GE X光机装机资料 DR0480

DR0480-Frontal X-Ray Tube Assembly1Personnel RequirementsRequired Persons Preliminary Reqs Procedure Finalization110mins120mins120mins2Preliminary Requirements2.1Tools and Test EquipmentItem Qty Effectivity Part#Manuf1---Standard Field EngineeringTools2.2ConsumablesNo consumables required.2.3Replacement PartsItem Qty Effectivity Part#Manuf Performix160A X-ray tube1-D2802A-assy,New1-2216500-3-or Performix160A X-raytube assy,Reload2.4SafetyRISK OF SERIOUS INJURY OR DEATH WHEN MANIPULATING THE X-RAY TUBEPERFORMIX160X-RAY TUBE UNIT WEIGHTS54KGDO NOT ATTEMPT TO LIFT WITHOUT USE OF HOIST.PUSH HOIST SLOWLY WHENTUBE IS MOUNTED.RISK OF ELECTRIC SHOCKVERY HIGH VOLTAGE PRESENTBEFORE ANY INTERVENTION SWITCH OFF THE SYSTEM(REFER TOPROTECTION AGAINST ELECTRICAL HAZARDS IN SAFETY AND REGULATORYAND QUALITY ASSURANCE PROGRAM DOCUMENTATION)2.5Required Conditions3Procedure3.1Backup Jedi Database1.Backup the Jedi database:Open SUIF ¡Toolkit Application ¡Jedi SW Loading (on the left frame)¡Backup Data .2.Select C:\backup from the combo box and click on START .3.When SUCCESSFUL message is displayed,check Jedi backup (backup.mx)has been created under C:\Backup directory.4.Save Jedi backup in a floppy,do not forget to write down Jedi Backup_systemID_Date on the floppy.3.2Disassembly3.2.1Disconnect Stator and thermal switch cables,ground cable,and water hose connections (XRT Anode end)1.Disconnect the stator cable.Illustration 1:2.Disonnect the thermal switch/oil pump cable (,Illustration 1).3.Disconnect X–Ray tube unit ground(,Illustration1).4.Disconnect the female45°output water hose(,Illustration1). 3.2.2Ingrid cable,ground cable,and water hose connections(XRT Cathode end)1.Disconnect the Ingrid control cable.Illustration2:2.Disconnect the Ingrid ground cable(,Illustration2).3.Disconnect the male90°input water hose(,Illustration2).3.2.3Disconnect the high voltage cables and Ingrid1.Disconnect the anode HV cable.Illustration3:2.Disconnect the cathode cable from the Ingrid.Illustration4:Discharge the cable before continuing.3.Remove the Ingrid:a.Loosen the XRT HV receptacle ring nut.Illustration5:b.Remove the Ingrid by removing the two screws and spacers holding it.Illustration6:3.2.4Remove the collimator and collimator adaptor plate1.Remove the collimator:•For the Innova2121-IQ system,refer to DR0489-Frontal/Lateral Collimator Assembly (2121-IQ)•For the Innova3131-IQ system,refer to DR0491-Frontal/Lateral Collimator Assembly (3131-IQ)2.Remove the four screws securing collimator adaptor plate.Illustration7:3.3Reassembly3.3.1Installing the X–Ray tubeThis procedure provides a method of using the tube lifting crane that comes inside the Performix X–Raytube crate enabling the tube to be mechanically lifted into place on the Innova system.This will enable a single person to lift the tube in most instances.1.Remove the outer package and the top of the wooden crate.2.Unpack the V Block and top block and secure the foot block to the front panel. Illustration8:3.With two hands,tilt the front panel with the X–Ray tube unit to the horizontal position and placethe hoist as shown below.Illustration9:4.Lift the X–Ray tube unit with hoist into place.Illustration10:5.Remove C-arc cover.Illustration11:6.Place the X–Ray Tube unit on the bracket,making sure the steel pin on the tube–arm fitsinto the hole in the XRT mounting dovetail.Illustration12:RISK OF X-RAY TUBE FALLINGAPPLY TIGHTENING TORQUE AS REQUIRED BELOWApply tightening torque as required below7.Secure the XRT with the two screws and washers with a tightening torque of20N.m+/-2N.m(14.7ft.lbs+/-1.5ft.lbs),(,Illustration12)and thelower dovetailed securing bar.8.Release the hoist from the X-ray tube.9.Remove the shipping bracket and hook from the unit.Illustration13:10.Remove aluminium window protector found under the shipping bracket.NOTE:Collimator adaptor plates are provided with the X-Ray beam accessories suitcase:•For the2121-IQ system,you will use the provided3°angled Cardio adaptor plate•For the3131-IQ system,you will use the provided0°angled Combo adaptor plateIllustration14:11.Install the collimator adaptor plate on the XRT.Secure it with its four screws. Illustration15:NOTE:Make sure to orientate the adaptor plate so that the collimator connector panel is orientated as shown.Illustration16:e screw locking compound(normal grade)on the threads of each of the4screws.13.Install the collimator:•For Innova2121-IQ systems,refer to IST0170-Frontal/Lateral Collimator Installation (2121-IQ)•For Innova3131-IQ systems,refer to IST0157-Frontal/Lateral Collimator Installation (3131-IQ)3.3.2Install the Ingrid and High Voltage CablesUse oil only for the cathode receptacle.Do not use oil in the anode receptacle.Damage willoccur if oil comes into contact with the mini connector on the anode cable.1.Fill the cathode HV receptacle of the Performix160X–ray tube to10cm3.To facilitate measuringthis volume,the FE can use the plastic cap that covers the cathode HV receptacle of the X–raytube assembly during shipment.This cap will either be red or yellow:a.If the cap is yellow,fill it completely with oil before pouring into the receptacle.b.If the cap is red,fill to a level of oil up to the first ridge from the bottom of the cap as shown. Illustration17:When installing the Ingrid in the X–Ray Tube,use HV OIL only(delivered with theequipment).2.Install the Ingrid:a.Install the Ingrid in the XRT cathode well.Illustration18:b.Align the mounting holes in the Ingrid with the holes in the heat exchanger bracket.Insert andtighten the two3mm allen-head screws(with the two spacers)between the bracket andthe Ingrid,to secure the Ingrid.Illustration19:e the provided HV spanner wrench and tighten the Ingrid to XRT HV receptacle ring nut.Illustration20:3.Connect the anode cable in the X–Ray tube:a.Wipe and clean thoroughly the receptacle of the anode HV plug. Illustration21:Do NOT grease the Anode HV plug.b.Connect the anode HV plug in its receptacle.Illustration22:c.With the anode HV plug in its receptacle,the metal plug flange must be below theplastic ring of the receptacle.If it is not the case,go to the beginning of Step3. Illustration23:d.Tighten the nut by hand,until it bottoms out on the casing.Illustration24:To tighten the nut of the anode HV plug,use only the spanner wrench delivered with thetube.DO NOT USE ANY OTHER SPANNER WRENCH.e.If necessary,tighten the nut of the anode HV plug by using the spanner wrench delivered withthe system.Illustration25:4.Connect the cathode cable to the Ingrid.Illustration26:3.3.3Ingrid cable,ground cable,and water hose connections(XRT Cathode end)1.Connect the Ingrid control cable.Illustration27:2.Connect the Ingrid ground cable(,Illustration27).3.Connect the male90°input water hose(,Illustration27).3.3.4Stator and thermal switch cables,ground cable,and water hose connections(XRT Anode end)1.Connect the stator cable.Illustration28:2.Connect the thermal switch/oil pump cable(,Illustration28).In the case where cables are too short,modify the cable(cut plastic protection)to correctlyshield the cable.3.Connect X–Ray tube unit ground(,Illustration28).4.Connect the female45°output water hose(,Illustration28).4Finalization1.Clear Tube Dataa.Open SUIF and click on Toolkit Application.b.Click on Jedi SW Loading on the left frame then on ClearTubeData.c.Click on START button:A SUCCESSFUL message is displayed in the right frame.2.Set BiasVoltagea.Click on SetBiasVoltage on the left frame.b.Find the tube bias voltage value,which is indicated on the anode end of the casing,near thefixation point of the X-ray tube ground.c.Enter the tube bias voltage value in the input text area.d.Click on START button:A SUCCESSFUL message is displayed in the right frame.3.Adjust Detector Alignment(refer to CAL0053-RG09Detector Alignment(with Capacitive Sensor)).4.Open the SUIF,click on Calibration application and launch calibrations:a.Collimator calib(P011).b.Filament Aging calib(X220).c.Conversion Factor.d.mR/mAs.e.Fluoro Tapers.f.Pixel Gain.5.Image Qualitya.Check that standard operations(boot,Fluoro and acquisitions)are ok.b.Run IQST test from the SUIF.6.HHS compliancea.Half value test-Refer to HHS Beam Quality Test(46-017562,Section1)in HHSdocumentation.b.Fluoro Entrance Exposure Test-Refer to HHS Fluoro System Tests(46-017563,Section1)inHHS documentation.c.Primary Barrier Transmission-Refer to HHS Fluoro System Tests(46-017563,Section3)inHHS documentation.d.Fluoro collimator to Image Intensifier Test-Refer to HHS Collimator Tests(46-017564,Section8)in HHS documentation.7.kV and mA Accuracya.Perform kV Accuracy as described in HHS Control and Tube Assembly Tests(46-017561,Section2)in HHS documentation.b.Perform mA Accuracy as described in HHS Control and Tube Assembly Tests(46-017561,Section5)in HHS documentation.8.Perform the following procedures:a.CAL0081-Tube Run-In and Stabilityb.REG0051-Indication and limitation of the extent of XR beamc.REG0025-Focal Spot of the X-Ray Tubed.REG0019-Dose at image receptore.REG0017-Functioning of the Exposure Regulation Loopf.REG0012-kVp accuracyg.REG0022-Line pair resolutionh.REG0023-Low contrast resolutioni.REG0021-Maximum Patient Dose Ratej.REG0020-Patient dose with phantomk.REG0013-Total filtrationl.REG0015-Linearity,reproducibility of the tube output9.Re-install the X-Ray tube covers:•For Innova2121-IQ systems,refer to DR0534-Frontal X-Ray Tube Covers-21cm•For Innova3131-IQ systems,refer to DR0533-Frontal X-Ray Tube Covers-31cmBlank page.。