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2.2.2.

Check the sensor horizontal level

1. Place the digital level at the position as shown in the picture above and check the horizontal

level. (Standard: ± 0.1° or less)

2. If the sensor level does not meet the standard, loosen the 4-point bolts in the red circle,

adjust it to meet the standard, and then refasten it.

2.2.3.

Equipment Start Position Setting

1. As in the image above, set the half value with [SPM_ACHF_XXXX] to align the vertical and

rotator guidelines straight (

The default ACHF value = 400

)

2. Send the same values for CT half value [SPM_ACHF_XXXX] in the PANO half

[SPM_HFST_XXXX] and the CEPH half [SPM_CPHF_XXXX].

Содержание A9 PHT-30CSS

Страница 1: ...vatech A9 Technical manual Model PHT 30CSS Version 1 01 English...

Страница 2: ...nd familiarizing yourself with this technical manual to carry out the necessary information on the VATECH equipment The information contained in this technical manual may be subject to change at any t...

Страница 3: ...Homogeneity evaluation 121 3 5 CT Number Accuracy evaluation 122 3 6 High Contrast Resolution evaluation 124 3 7 Low Contrast Resolution evaluation 126 3 8 Slice Thickness Evaluation 127 3 9 Collimat...

Страница 4: ...ion 201 8 4 Checking Firmware Version Serial Communication 207 8 5 Appendix 208 Chapter 9 Command List Guide 213 9 1 Communication Protocol 213 9 2 vatech A9 PHT 30CSS Command List 215 9 3 Procedure f...

Страница 5: ...ing signs are used in this manual WARNING Critical application information that could result in critically severe injury or damage on both operator and equipment is described CAUTION Important applica...

Страница 6: ...authorized operator can handle the electrical circuit board and an understanding of the electric and electrical system is required Be able to recognize operation malfunction and implement appropriate...

Страница 7: ...operators need to wear shielding gloves while operating The only part that can be replaced by the users is the input fuses Check if the fuses comply with the manufacturer s specifications Mechanical...

Страница 8: ...d room Or operators should use a shielding plate to minimize radiation exposure while operating the system The equipment exposes radioactive rays and only specialized engineers can operate the system...

Страница 9: ...work fine 2 Is the power off before the equipment repair begins 3 Is the voltage range indicated back of the equipment observed properly 4 Is the equipment grounding connection working fine 5 Are ther...

Страница 10: ...Page 9 of 244 Chapter 1 Hardware Part Service Guide 1 1 vatech A9 PHT 30CSS System Block Diagram...

Страница 11: ...Page 10 of 244 1 2 vatech A9 PHT 30CSS Board Configuration The position of the board mounted on the equipment is as follows...

Страница 12: ...Page 11 of 244 1 2 1 Vertical Frame Part...

Страница 13: ...Page 12 of 244 The following boards are mounted on the vertical unit MCU028 board Ethernet Grabber Power board Noise Filter...

Страница 14: ...Page 13 of 244 1 2 1 1 Ethernet Grabber Function 12V 24V DC Input RS232 to MCU CAN to MCU Reserve 2 Optic signal input Tx 1550 Rx 1310 1 G Ethernet output 4Gbyte memory...

Страница 15: ...d Motor control Rotator 1 axis Generator Tilting Column Up Down Collimator Moving Sensor Moving CEPH Sensor Moving Fan control Sensor Power On Off control Laser On Off control X Ray control X Ray Warn...

Страница 16: ...Page 15 of 244 1 2 1 3 Power Board VT PWR 016 Function 24V DC Output System Motor Sensor Inverter 380V DC Output Generator Emergency Switch Input Power Shutdown 1 2 1 4 Noise Filter...

Страница 17: ...Page 16 of 244 1 2 2 Handle Unit Remove the cover from the Handle Unit as shown in the image below Handle frame...

Страница 18: ...Page 17 of 244 Remove the cover from the Handle frame as shown in the image below 1 2 2 1 Touch Keypad Circuit Breaker UP DOWN switch Speaker Emergency Switch ORG Sensor...

Страница 19: ...Page 18 of 244 1 2 3 Rotating Unit Part Disassemble the ROTATOR PANO as shown in the image below GENERATOR part SUB056 Inverter Sensor Sensor Motor ASSY...

Страница 20: ...244 1 2 3 1 Sensor Interface SUB056 Function Control Signal Interfacing of Sensor moving motor Rotator motor and the Sensor Control Power Interfacing of Sensor 1 2 3 2 Inverter Function Supply High D...

Страница 21: ...314CF 1 2 3 4 Generator Interface SUB055 Function Control Signal Interfacing Generator Generator Tilting motor Laser Laser motor Collimator Fan Sensor CT PANO Control Power Interfacing Sensor CT PANO...

Страница 22: ...Page 21 of 244 1 2 3 5 Generator DG 07E22T2...

Страница 23: ...Page 22 of 244 1 2 4 CEPH Unit Disassemble the CEPH Unit as shown in the image below SUB075 CEPH Sensor...

Страница 24: ...Page 23 of 244 1 2 4 1 CEPH Sensor Xmaru2602 1 2 4 2 CEPH Interface SUB075 Function Interfacing Main MCU Board MCU026 and CEPH Motors CEPH sensor control Sensor power regulation 24V 5V...

Страница 25: ...Page 24 of 244 1 3 vatech A9 PHT 30CSS Connection Diagram 1 3 1 Power and Ground Connection Diagram...

Страница 26: ...Page 25 of 244...

Страница 27: ...Page 26 of 244...

Страница 28: ..._ORG GTPOWER 14 13 16 15 GTGND CN 1400 SMW 20 0 16C GND_SYS ROTATOR1 SUB056 1 2 3 CN 1415 3 5312 03 PA NO C T MODE ORG MOD E_ORG P 24VS GND_SY S P3 3VS LASER4 FAN_ON SEN_P ULSE GND_SYS P5VS 9 GTGND G...

Страница 29: ...T2A LM O_OUT1A LM O_OUT1B RM O_OUT2B RM O_OUT2A RM O_OUT1A RM O_OUT1B 18 17 N C N C 7 8 9 PT_ME TER P3 3V GND_SYS W_PANO 2 4 6 8 10 12 1 3 5 7 9 11 C ANL P 24VS P 24VS CN 2712 S MW20 0 16C CANH FAN _O...

Страница 30: ...Page 29 of 244 1 3 3 Sensor Part Connection Diagram...

Страница 31: ...Page 30 of 244 1 3 4 CEPH SENSOR Part Connection Diagram...

Страница 32: ...Page 31 of 244 1 3 5 Connection Diagram Total assembly...

Страница 33: ...unscrewing the truss head screws In this manual the procedures for removing the rubber caps are omitted for convenience The following illustrations may look different from actual products depending o...

Страница 34: ...Page 33 of 244 By doing this you can access Ethernet Grabber Main MCU BOARD MCU028 Power Board Noise Filter...

Страница 35: ...SSEMBLY OF THE ROTATOR COVERS To disassemble the rotator cover follow the steps below 1 Rotate the rotator as shown in the image below and remove the side cover of the rotator 2 Loosen four bolts and...

Страница 36: ...Page 35 of 244 3 Remove the six bolt caps on the top of the rotator and loosen the six bolts 4 Remove the cover from the top of the rotator...

Страница 37: ...Page 36 of 244 5 Loosen the two bolts as shown in the image below 6 Remove three bolt caps and loosen three bolts as shown in the image below...

Страница 38: ...Page 37 of 244 7 Remove the cover by pulling it down as shown in the image below By doing this you can access Sensor Rotator motor SUB056...

Страница 39: ...Page 38 of 244 8 Remove four bolt caps and loosen four bolts as shown in the image below 9 Remove the cover as shown in the image below...

Страница 40: ...Page 39 of 244 10 Remove the six bolt caps on the top of the rotator and loosen the six bolts 11 Loosen two bolts as shown in the image below...

Страница 41: ...Page 40 of 244 12 Remove the cover as shown in the image below 13 Remove the cover as shown in the image below...

Страница 42: ...Page 41 of 244 14 Loosen six bolts as shown in the image below 15 See the image below for the appearance after removing the bolt and removing the generator...

Страница 43: ...Page 42 of 244 16 Loosen ten bolts as shown in the image below...

Страница 44: ...Page 43 of 244 17 Remove the cover as shown in the image below By doing this you can access Inverter Generator SUB056...

Страница 45: ...244 1 4 3 Handle Frame Unit Part DISASSEMBLY OF THE HANDLE FRAME COVERS To disassemble handle frame covers 1 Remove the Chinrest as shown in the image below 2 Loosen the four bolts as shown in the im...

Страница 46: ...Page 45 of 244 3 Remove the handle as shown in the image below 4 Loosen the four bolts as shown in the image below 5 Remove the parts as shown in the image below...

Страница 47: ...46 of 244 6 Remove four bolt caps and loosen four bolts as shown in the image below 7 Remove the cover as shown in the image below 8 Remove the bolt cap and loosen three bolts as shown in the image b...

Страница 48: ...Page 47 of 244 9 Remove the part as shown in the image below 10 Loosen the two bolts as shown in the image below 11 Remove the cover as shown in the image below...

Страница 49: ...Page 48 of 244 By doing this you can access Circuit Breaker UP DOWN switch Speaker Emergency Switch ORG Sensor Touch Keypad...

Страница 50: ...Page 49 of 244 DISASSEMBLY OF THE OTHERS Remove the switch holder by loosening three bolts as shown in the image below...

Страница 51: ...Page 50 of 244 1 4 4 CEPH Unit Part DISASSEMBLY OF THE CEPH COVERS To disassemble CEPH covers 1 Loosen the two bolts as shown in the image below 2 Loosen the four bolts as shown in the image below...

Страница 52: ...Page 51 of 244 3 Loosen the four bolts as shown in the image below 4 Remove the cover as shown in the image below...

Страница 53: ...Page 52 of 244 5 Loosen the five bolts as shown in the image below 6 Remove the cover as shown in the image below...

Страница 54: ...Page 53 of 244 7 Loosen the six bolts as shown in the image below 8 Remove the cover as shown in the image below...

Страница 55: ...VATECH ALL RIGHTS RESERVED Chapter 2 CT Image Optimization 2 1 Geometry information FDD Distance from the X ray source to the sensor 584 6 mm FOD Distance from the X ray source to the center of rotati...

Страница 56: ...rizontal level 1 Check the equipment level at the same position as the picture above standard 0 1 or less 2 At the position where the sensor is looking at the column visually check whether the vertica...

Страница 57: ...eet the standard loosen the 4 point bolts in the red circle adjust it to meet the standard and then refasten it 2 2 3 Equipment Start Position Setting 1 As in the image above set the half value with S...

Страница 58: ...Page 57 of 244 2 2 4 Bite location CT mode Move the bite s location for CT mode as illustrated below CT Mode The position combined with the stopper in the opposite direction right side of the column...

Страница 59: ...nt Filter AL filter Al X Cu filter Cu 1 mm O X Using filter by each calibration point Ensure that the median value for each bright cal point meets the standards in the table below Bright Standard Valu...

Страница 60: ...ng the steps in Chapter 1 Go to 1 4 Disassembly of vatech A9 PHT 30CSS Covers 3 Rename the CAL folder for backup If you are using an old collimator ensure to reassemble the cu filter as illustrated be...

Страница 61: ...l SPM_FREQ_0100 Sensor frequency 100 Hz SPM_COLM_0003 Collimator Open Position If the collimator is not completely open after entering this command adjust with adjust with SPM_CDST_XXXX SPM_COLM_0004...

Страница 62: ...e file Path C VCaptureSW Acquisition CBCT WidePANO VACAP exe 2 On the dialog box Select Soft Calib and send the following commands to MCU to set CT sensor and collimator SPM_ARCT SPM_CSON SPM_FIPM_000...

Страница 63: ...ge satisfies the standards below Min Max Median value 700 2300 If the median value from the captured image does not meet the dark calibation standards replace the sensor and repeat the calibaration pr...

Страница 64: ...oint bright calibration 1 Run the C VCaptureSW Acquisition CBCT WidePANO VACAP exe file 2 Click the Settings tab and follow the step below 1 Enter 2 for the Numbpoint 2 Check if the tube voltage kVp a...

Страница 65: ...PM_0001 SPM_FISS_0001 SPM_FISM_0001 and SPM_COLM_0003 Command Function SPM_ARCT CT mode SPM_CSON CT sensor power on SPM_FISS_0001 Normal Mode 4x4 binning High gain SPM_FIPM_0001 Sensor size setting SP...

Страница 66: ...TON FOR 3 SEC on the status window press the X ray exposure switch 8 Release the switch when the message RELEASE THE BUTTON shows up in the status window 9 Repeat steps 7 to 8 unti you acquire two bri...

Страница 67: ...kVp0 and kVp1 values from the table below adjustment range 10 and repeat the bright calibration procedure Section Values kVp0 630 mA0 700 kVp1 750 mA1 910 The bright calibration date is saved at C VC...

Страница 68: ...ttings and follow the steps below to set exposure condition 1 Go to BrightCalibration and enter 4 for the NumPoints 2 Go to the 4 point section and check whether the tube voltage kVp and current mA me...

Страница 69: ...nd collimator SPM_ARCT SPM_CSON SPM_FIPM_0001 SPM_FISS_0001 SPM_FISM_0001 SPM_COLM_0004 5 Click Dark 6 Click the Bright 7 When you see the message HOLD THE BUTTON FOR 3 SEC on the status window press...

Страница 70: ...Max Median value Cal Point 1 80 120 Cal Point 2 150 700 Cal Point 3 800 1800 Cal Point 4 2000 2500 4 Point Bright Calibration Standard Value If the median value falls outside of the standard adjust th...

Страница 71: ...bright calibration return to the dialog box and follow the steps below to create an auto bad pixel map 1 Select Settings 2 Go to BrightCalibration and enter 6 for NumbPoints 3 Click Save 4 Select Sof...

Страница 72: ...els over 50 of effective area width and height are defined as bad lines When it is an effective area of M x N 1 x M or N x 1 or more is defined as a bad line Total max 7 line There should be at least...

Страница 73: ...e 2 Select Soft Calib 3 Click the V button to open the View16 program VAKCAP exe file Path C VCaptureSW Acquisition CT WidePANO 4 Select S from the M box and click the 184x686BPM raw from the raw file...

Страница 74: ...T geometry calibration CT phantom jig consists of upper and lower jigs The image above is provided as an example The actual CT phamtom jig may be different from the illustration To perform CT geometry...

Страница 75: ...Function SPM_CSON CBCT sensor Power On SPM_FISS_0001 Sensor Sensitivity Binning Mode Settings 0000 High Gain 2x2 Binning 0001 High Gain 4x4 Binning 0002 Low Gain 2x2 Binning default 0003 Low Gain 4x4...

Страница 76: ...Bead reconstruction vxm for Recon mode 8 Click Capture and press the X ray exposure switch to take an image 9 On the dialog box click PANO and Process to generate the average raw of PROJ files 5 Click...

Страница 77: ...SPM_CMCT_xxxx value increases To modify ofs value by 1 modify CMCT value by 2 12 If the acquired file passes the standard enter the ofs value in the DETOFFSETYY parameter from the following files reco...

Страница 78: ...Page 77 of 244 13 When the CMCT value is determined enter the PMCT value as CMCT value 149 ex SPM_CMCT_431 SPM_PMCT_580...

Страница 79: ...O vxm Parameter file used when generating geometry cal data 1 Place the bead phantom in a way that the side with longer empty spaces comes to the buttom The phantom consists of total 4 rows and 28 col...

Страница 80: ...tom and old phantom are distinguished by bead locations New Phantom Old Phantom SAP code A0003289 SAP code M000470 When acquiring the image the phantom s bottom must be placed on a jig or plate If you...

Страница 81: ...position the new phantom 1 Attach a phantom jig to the chinrest 2 Place a new phantom at the center of the phantom jig Top View Side View When using a new phantom you must use the phantom jig exclusi...

Страница 82: ...a tripod and move closed to the handle frame 2 Mount the phantom jig on the tripod plate 3 Place an old phantom on the jig When placing the phantom the side with longer empty space must come to the bo...

Страница 83: ...Gain 2x2 Binning 0001 High Gain 4x4 Binning 0002 Low Gain 2x2 Binning default 0003 Low Gain 4x4 Binning SPM_FIPM_0001 Sensor Partial Mode Settings Sensor size 0000 0032 SPM_FISM_0001 Sensor Internal...

Страница 84: ...standard is not met adjust the column height and acquire the image again 12 If the height is correct send the SPM_ABMS command and capture the image 13 When the exposure is completed select the 20 Be...

Страница 85: ...the image all 4 rows must be visibly displayed 3 Click the Reconstruction button Located in the center of the image Check the 4 rows 4 Click the V vol button to check the bead image 1 Set the bead 2...

Страница 86: ...Page 85 of 244 15 When the bead position is confirmed click the Properties button 16 Click the Generate GEO button to perform geometry cal BeadThres value 2000 Click the Properties button...

Страница 87: ...after clicking the Generate GEO button You must be able to see 4 groups and 28 points in total BeadThres value 2000 18 When the geometry generation result appears in a pop up click the OK button 19 C...

Страница 88: ...the set geometry graphically 1 Check the result to see if there is a problem in a straight line such as bending 2 If you find a problem repeat Angle bin before operation RCP bin before the operation A...

Страница 89: ...ixels over 50 of effective area width and height are defined as bad lines When it is an effective area of M x N 1 x M or N x 1 or more is defined as a bad line Total max 7 line There should be at leas...

Страница 90: ...1 Run VAKCAP exe file 2 In the Soft Calib tab click the V button to open the View 16 program VAKCAP exe file Path C VCaptureSW Acquisition CT WidePANO 3 Go to the M box select S in a drop down list 4...

Страница 91: ...ting send the following commands in the table below to supply power to the CBCT Sensor Command Function SPM_CSON CBCT sensor Power On SPM_FISS_0001 Sensor Sensitivity Binning Mode Setting 0000 High Ga...

Страница 92: ...2 3 3600 ex If it is SPM_HFST_200 input SPM_HFST_3800 7 Click the Capture_CTB button to acquire an image 8 Click the V Proj button to check the image 9 Enter 92 on the X axis and check if the three pi...

Страница 93: ...lockwise the top pin moves to the right 3 When rotating the chinrest module clockwise the top pin moves to the left 4 Repeat the process 1 to 3 until all three pins are aligned in a stright line Examp...

Страница 94: ...right or left When moving the handle right the pin center moves to the right When moving the handle left the pin center moves to the left 3 After the pin center alignment recover the value by sending...

Страница 95: ..._CSON CBCT sensor Power On SPM_FISS_0001 Sensor Sensitivity Binning mode setting 0000 High Gain 2x2 Binning 0001 High Gain 4x4 Binning 0002 Low Gain 2x2 Binning default 0003 Low Gain 4x4 Binning SPM_F...

Страница 96: ...on 8 When the VAKPAR screen shows press the X ray exposure switch button 9 When the exposure is completed click the V Proj button to open the raw files 1 Send the SPM_ABMS command 2 Click the Capture...

Страница 97: ...els 1 98 3 96 mm Y value 665 675 If the Chinrest block is measured higher than 20 pixels replace it with thin sheet metal If the chinrest block is lower than 10 pixels it is replaced with thick sheet...

Страница 98: ...se per cell X axis reference range 220 230 220 or less move to the left based on the column Over 230 Move to the right based on the column Angle setting When moving to the right Start angle 0 10 When...

Страница 99: ...BCT WidePANO VACAP exe file 2 Send the following commands to the command window to set the CT sensor and collimator SPM_ARCT SPM_CSON SPM_FIPM_0001 SPM_FISS_0001 SPM_FISM_0001 SPM_COLM_0001 3 In the S...

Страница 100: ...ning the following standard and check if 0010 raw satisfies the collimator alignment cut standard The collimator alignment standard for each FOV is as follows Collimator alignment standard value Colli...

Страница 101: ...Page 100 of 244 Upper Lower Collimator Setting The cut area is marked in red Set Threshold to 75 and click the Apply button Choose the 0010raw file...

Страница 102: ...o set CT collimator using EzAlign 1 Start the EzAlign S and click Modality Align 2 Click CBCT and START After clicking these buttons the system moves to its capturing position and the collimator auto...

Страница 103: ...arked in the white box 5 Release the switch when you see the message RELEASE THE BUTTON marked in the white box If the system does not show this message repeat step 3 6 1 When you see a pop up message...

Страница 104: ...ition and capture the dark date 3 After capturing the dark data click V Proj to check the catpured image The end of dosimeter must be placed at the white line Place the dosimeter at the area indicated...

Страница 105: ...eter is not located in the circle re locate the dosimeter and capture an image again Set to X 92 Y 490 M 50 and set the dosimeter position so that the dosimeter s sensor is located in the circle The c...

Страница 106: ...t meets the standard as follows If not adjust mA and re capture Background level standard value Mode exposure condition mGy Background Level Man High resolution 95kVp 8 5 0 1 7000 11500 Man Green 80kV...

Страница 107: ...30 increments 11 Compare with the DAP value output from the Console Software and check if it is within 15 12 If the output DAP of the Console SW is more than 15 different from the measured DAP correc...

Страница 108: ...to the following procedures Make sure that the operator should use TYPE A as CT PHANTOM JIG during the CT Number Calibration SAP Code Type A M0103175 Type B M0104116 Make sure that the operator shoul...

Страница 109: ...t the CBCT number calibration 1 Run the C VCaptureSW Acquisition CBCT WidePANO VAKCAP exe file 2 Open the Reconstruction vxm file C VCaptureSW Acquisition CBCT WidePano REC 3 Change to POSTPROCESSING...

Страница 110: ...FOV 8x8 High resolution Man Hard mode and click the Confirm button 2 Put the Phantom jig on the Chinrest Adjust so that the lines of the top and bottom are straight CT Number Phantom 3 Choose the Hig...

Страница 111: ...Page 110 of 244 3 Put CT Number Phantom on the Phantom Jig Phantom Jig and CT Number Phantom Position 4 Click the Ready button and acquire the image Bone Water Air...

Страница 112: ...Page 111 of 244 5 Click the V Vol button Click the Ready button...

Страница 113: ...ntral slice of the water filled section Ex Total number of slices Slice XY Z number of slices measured 450 100 350 Find the central slice of the water filled area as follows Total number of slices Sli...

Страница 114: ...ge 113 of 244 7 Open the measurement slice and measure air water and bone as above Check the ave value M 15 Bone Water Air Air Choose Slice 1 Click the Setting button 2 Choose Engineer and enter vatec...

Страница 115: ...ROCESSING 0 POSTPROCESSING 50 UserCTNumCal 0 UserCTNumCal 1 UseArcCut 0 UseArcCut 1 10 Capture the CT Number phantom and evaluate CT Number accuracy refer to 5 CT Number Accuracy evaluation CT Number...

Страница 116: ...Page 115 of 244 Parameter LSL Lower Specification Limit USL Upper Specification Limit Teflon Bone 900 1100 11 If CT Number does not meet the standard as above adjust the CT Number value...

Страница 117: ...age Evaluation 3 1 Spatial Resolution MTF evaluation 3 1 1 Spatial Resolution MTF standards Parameter LSL Lower Specification Limit USL Upper Specification Limit MTF 10 lp mm 1 00 3 50 3 1 2 Phantom S...

Страница 118: ...g on the unit and make the phantom jig level by using bubble level and three align pins 4 Put the DVT Phantom on the phantom jig 5 Press the Ready button and acquire an image 6 When reconstruction is...

Страница 119: ...standards Parameter LSL Lower Specification Limit USL Upper Specification Limit Contrast 1000HU 500 3 2 2 Phantom Specification QUART DVT Phantom 3 2 3 Test Method 1 The evaluation is conducted in the...

Страница 120: ...Page 119 of 244 3 2 4 Test Result Parameter LSL Measurement value USL Pass Fail Contrast 1000HU 500...

Страница 121: ...ation Limit USL Upper Specification Limit Noise 5 00 3 3 2 Phantom Specification QUART DVT Phantom 3 3 3 Test Method 1 The evaluation is conducted in the same manner as in the evaluation method in Sec...

Страница 122: ...Limit USL Upper Specification Limit Homogeneity 10 00 150 00 3 4 2 Phantom Specification QUART DVT Phantom 3 4 3 Test Method 1 The evaluation is conducted in the same manner as in the evaluation metho...

Страница 123: ...3 5 CT Number Accuracy evaluation 3 5 1 CT Number standards Parameter LSL Lower Specification Limit USL Upper Specification Limit Air 1030 900 Water 20 20 Teflon 900 1100 3 5 2 Phantom Specification C...

Страница 124: ...m button 5 Press the Ready button and acquire an image 6 When the reconstruction is completed save the CT folder name in the C VCaptureSW ImageOutput as CT_CTnum Phantom 7 Open the saved image through...

Страница 125: ...High Contrast Resolution evaluation 3 6 1 High Contrast Resolution standards Parameter LSL Lower Specification Limit USL Upper Specification Limit High Contrast Resolution 1 0 mm 3 6 2 Phantom Specif...

Страница 126: ...onfirm button 5 Press the Ready button and acquire an image 6 When the reconstruction is completed save the CT folder name in the C VCaptureSW ImageOutput folder as CT_S C Phantom 7 Open the saved ima...

Страница 127: ...ification Limit USL Upper Specification Limit Low Contrast Resolution 9 0 mm 3 7 2 Phantom Specification S C Phantom 3 7 3 Test Method 1 The evaluation is conducted in the same manner as in the evalua...

Страница 128: ...tion Limit Slice Thickness 38 0 mm 42 0 mm 3 8 2 Phantom Specification QUART DVT Phantom 3 8 3 Test Method 1 Open the CT_DVT Phantom image captured in Section 1 3 through the 3D Viewer 2 Measure the l...

Страница 129: ...limator Alignment Evaluation 3 9 1 Collimator Alignment Standard Parameter LSL Lower Specification Limit USL Upper Specification Limit Threshold 95 Left 1 2 Right 1 2 Threshold 75 Upper 1 10 Lower 1 1...

Страница 130: ...hantom EzEval exe program 3 Input the threshold 75 and check the upper and lower 4 Input the threshold 95 and check the left and right 5 Check whether the Collimator Alignment Result is satisfied with...

Страница 131: ...age 130 of 244 Chapter 4 PANO Image Optimization 4 1 Geometry information FDD Distance from the X ray source to the sensor 584 6 mm FOD Distance from the X ray source to the center of rotation 425 6 m...

Страница 132: ...mmended to perform for image optimization against temperature and humidity variation 4 3 1 PANO Sensor Calibration Standard PANO Sensor Dark Calibration Standard Value Dark data file median value 700...

Страница 133: ...dware Part Service Guide 3 Rename the CAL folder C VCaptureSW Acquisition PANO WidePANO CAL name for backup If you are using an old collimator ensure to reassemble the cu filter as illustrated below B...

Страница 134: ...ureSW Acquisition PANO WidePANO CAL To set the PANO sensor use the command from the list below Command Function SPM_PANO PANO mode SPM_PSON PANO sensor power on SPM_FISS_0001 Normal Mode 4x4 binning H...

Страница 135: ...e file Path C VCaptureSW Acquisition Pano WidePANO VACAP exe 2 On the dialog box Select Settings 3 Click the OK and restart the program 4 On the dialog box select Capture Recon 5 Send the following co...

Страница 136: ...of 244 6 Click Dark 7 Select 30x686d raw and click V to open View 16 8 Check if the median value of the selected raw file fall into a range of the standard values 700 2300 max ave med min 1588 1339 9...

Страница 137: ...x select Settings and follow the steps below to set exposure condition 1 Go to BrightCalibration and enter 5 for NumPoints 2 Check whether the tube voltage kVp and current mA meets the standards If ne...

Страница 138: ...re switch when you see the message HOLD THE BUTTON FOR 3 SEC 7 Release the switch when you see the message RELEASE THE BUTTON 8 Repeat step 6 to 7 until you acquire five bright calibration data files...

Страница 139: ...ght calibration data again 11 Click the Point 5 bright calibration data file from the View 16 Check whether the median value of the selected file falls into a range of the standards values See the tab...

Страница 140: ...Set the threshold value concerning the following standard and check 0010 raw to check if it satisfies the collimator alignment standard below 6 If the Left and Right do not meet the standards adjust t...

Страница 141: ...et PANO collimator with EzAlign 1 Start the EzAlign S and click Modality Align 2 Click PANO and START button After clicking these buttons the systemmoves to its capturing position and the collimator a...

Страница 142: ...x 5 Release the switch when you see the message RELEASE THE BUTTON marked in the white box If the system does not show this message repeat step 3 6 1 When you see a pop up message notifying the end of...

Страница 143: ...tor speed alignment 1 Run the console software 2 Press the shortcut key Ctrl s to open the Serial Communication command window 3 Send the PPON_0 command in the red square 4 Press the Exit button to ex...

Страница 144: ...0 y 343 at the middle position of projection 2 If more than half of the cutting area indicated in red appears in each x value it is 1 pixel If not it is 0 pixel 3 For example in the picture on the ri...

Страница 145: ...age Projection at Beginning Middle End Position If not perform the following tasks to satisfy the standard 1 When the number of Left Cutting Pixels is Beginning Middle End Increase the value of SPM_PS...

Страница 146: ...e red arrow vertical line Compare the difference between Left Cutting Pixels of Projection 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 raw Starting from 100 raw check...

Страница 147: ...Fail In case of the above situation check the hardware part related to the movement of the collimator and sensor Projection Left Cutting Pixel image Pass Normal Skull image after work If step 2 is co...

Страница 148: ...and hold the exposure switch until RELEASE THE BUTTON message appears 3 If the system displays the HOLD THE BUTTON message again instead of the succeeding message repeat step 2 4 If the PANO Collimat...

Страница 149: ...raw file when conducting the PANO geometry calibration with the PANO ball phantom 2 0 PANO BALLPHANTOM RIGHT LEFT PIN DISTANCE ERROR within 30 pixels PANO BALLPHANTOM CENTER PIN POSITION Within 1574...

Страница 150: ...chinrest 2 Run the Console Software and click the Phantom Capture Mode icon 3 Click the PANO mode and acquire the phantom image 4 When the image acquisition is completed run the VAKCAP exe file 5 Save...

Страница 151: ...tion 1574 10 pixel Right Left Pin Distance 30 pixel 30 pixel 4 Center Pin Position is not correct as shown in the picture below loosen the three points of the Chinrest drive and move it 5 When moving...

Страница 152: ...pin pixel number meets the standard and the ghost image has bilateral symmetry as shown above 3 If it is out of the standard value change the SPM_POFS_xxxxx value and adjust it according to the stand...

Страница 153: ...ht Center Ball size 6 Check the Right Center Ball size meets the standard 54 55 pixels 7 Do steps 3 6 for the Left Center Ball 8 If it is out of the standard value move the position of the PANO Mode C...

Страница 154: ...mode to check whether the vertical beam is located at the reference line of the ball phantom 4 If the position is not correct loosen the assembly point with an M4 wrench and move it left right so that...

Страница 155: ...ntom to the chinrest 2 Run the Console Software and click the PANO button to go into PANO mode 3 Choose HD Mode MAN Normal mode exposure condition 70 kVp 7 mA as the image option and click the Confirm...

Страница 156: ...pecification Limit USL Upper Specification Limit Hole 1 5 mm 5 2 2 Phantom Specification QUART Phantom QUART Ball Phantom 5 2 3 Test Method The evaluation is conducted in the same manner as in the eva...

Страница 157: ...Confirm button 3 Attach PANO BALL Phantom Quart Phantom Ass y on Chinrest 4 Click the READY button and acquire save the image according to the Console Software guidance 5 Run VAKCAP exe 6 Click the Pa...

Страница 158: ...e 1200 or more The difference between ROI 1 2 values is 10 or less 5 4 2 Phantom Specification QUART Phantom QUART Ball Phantom 5 4 3 Test Method The evaluation is conducted in the same manner as in t...

Страница 159: ...Alignment Evaluation 5 5 1 Collimator Alignment Standard Parameter LSL Lower Specification Limit USL Upper Specification Limit Threshold 70 Upper 1 10 Lower 1 10 Left 2 2 Right 1 2 Collimator Alignme...

Страница 160: ...opped state 2 Run the C VCaptureSW Util EzEval_Phantom EzEval exe program 3 Input the threshold 75 and check whether the Collimator Alignment Result is satisfied with the standard 5 5 3 Test Result Pa...

Страница 161: ...Follow the steps below to prepare the system for a CEPH sensor calibration 1 Remove the normal chin block 2 Remove the CEPH ear rods and fold the nasal positioner to prevent the CEPH sensor from bloc...

Страница 162: ...completely opened adjust with SPM_CDST_XXXX SPM_COLM_0004 1T Cu AL filter position with cu filter If 1T Cu Al Filter is not completely covered adjust with SPM_CEST_XXXX SPM_COLM_0005 CEPH Mode Collim...

Страница 163: ...st 2 On the dialogbox Select Soft Calib and send the following commands to the command window to set FPS Norm SPM_CEPH SPM_HSON SPM_CFRQ_0160 Fast SPM_CEPH SPM_HSON SPM_CFRQ_0313 3 Click Dark to captu...

Страница 164: ...Fast 2 On the dialogbox click Bright 3 Check if the median values of the captured images meets the standards below Filter by calibration point Bright 4 point 1 point Filter Cu 1 0T Open Norm Mode Brig...

Страница 165: ...reSW Acquisition CEPH WideCEPHG Fast 2 On the dialog box Select Settings and follow the steps to set exposure conditions 1 Go to BrightCalibration and enter 1 for the NumbPoints 2 Check if the tube vo...

Страница 166: ...5 Send SPM_COLM_0003 to the command window to move the colimater to open position Command Function SPM_CEPH Ceph mode SPM_HSON Ceph sensor power on SPM_COLM_0003 Collimator open position without cu fi...

Страница 167: ...Value 1 Point Bright w o filter Bright Min Max Median value Cal Point 5 1200 1400 Fast Mode Bright Standard Value 1 Point Bright w o filter Bright Min Max Median value Cal Point 5 600 800 If the medi...

Страница 168: ...ureSW Acquisition CEPH WideCEPHG Fast 2 On the dialog box Select Settings and follow the steps to set exposure conditions 1 Go to BrightCalibration and enter 4 for the NumbPoints 2 Check if the tube v...

Страница 169: ...5 Send SPM_COLM_0004 to the command window to move the collimator to open position Command Function SPM_CEPH Ceph mode SPM_HSON Ceph sensor power on SPM_COLM_0004 Collimator open position with cu fil...

Страница 170: ...age HOLD THE BUTTON FOR 3 SEC on the status window press the X ray exposure switch 9 Release the switch when the message RELEASE THE BUTTON shows up in the status window 10 Repeat steps 8 to 9 until y...

Страница 171: ...ts with Cu 1 mm filter Bright Min Max Median value Cal Point 1 200 300 Cal Point 2 300 400 Cal Point 3 400 500 Cal Point 4 500 600 If the median values do not satisfy the standards adjust the kVp0 and...

Страница 172: ...1 of 244 15 After finishing the bright calibation on the norm mode return to the Vakcap dialogbox to create an auto bad pixel map 1 Enter 4 for the Numbpoint 2 Click Save 3 Select Soft Calib and click...

Страница 173: ...ad line definition Bad pixels over 50 of effective area width and height are defined as bad lines When having an effective area of M x N 1 x M or N x 1 or more is defined as a bad line Total max 7 lin...

Страница 174: ...2 Attach 0 8T of Cu in front of the collimator and set the exposure condition to 80kVp 10mA 3 Attach CEPH standard phantom to the ear rod click the console software as shown in the picture below and c...

Страница 175: ...own in the image below adjust SPM_XRFA_xxxx so that the center value is 605 625 pixels As the value decreases it moves to the left and moves about 10 pixels per value CEPH standard phantom image Check...

Страница 176: ...n front of the collimator 2 Attach the CEPH standard phantom to the ear rod 3 Click the Console software as shown in the picture below to capture the Normal PA Mode 1 Choose the CEPH 2 Choose the High...

Страница 177: ...e below adjust SPM_UBTT_xxxx so that the center value is 1160 1180 pixels As the value decreases it moves to the left and moves about 10 pixels per value CEPH standard phantom image Check the center c...

Страница 178: ...Line Pair Low Contrast Resolution 2 Line Pair Resolution Make sure that the lines can be seen clearly at 2 5 lp mm 3 Low Contrast Resolution Make sure that 1 or more holes can be seen clearly Checkin...

Страница 179: ...lat washer into the right Ear Rod as shown below 5 Click the READY button 6 Perform the image acquisition according to the Console Software guidance 7 When the image acquisition is completed run the V...

Страница 180: ...Page 179 of 244 10 Select 50 in the M box and click the center of the flat washer...

Страница 181: ...dware Part Service Guide 5 Loosen 2 wrench bolts and adjust the fixed block of EAR ROD as shown below If turn the fixed block of EAR ROD to the right on the picture below the Guide Pin of EAR ROD will...

Страница 182: ...ure the CEPH sensor and collimator 3 Set 90kvp 10mA in VACAP send the SPM_SSB_ command to the Command window and click the Capture button to acquire the image 4 Use the Collimator control command to f...

Страница 183: ...imator alignment standard is as follows Collimator Alignment standard value Collimator Min pixels Max pixels Threshold 90 Left 1 5 Right 1 5 Upper 20 40 Lower 20 40 8 If the red pixel count is out of...

Страница 184: ...h EzAlign 1 Start the EzAlign S and click Modality Align 2 Click CEPH and START After clicking these buttons the system moves to its capturing position and the collimator auto alignment starts If you...

Страница 185: ...e switch when you see the message RELEASE THE BUTTON marked in the white box If the system does not show this message repeat step 3 6 1 When you see a pop up message notifying the end of auto CEPH aut...

Страница 186: ...n the C VCaptureSW Util VIPS exe file 2 Set options for each mode as shown in the picture below 1 Click the Option button 2 Enter vatech 3 Click the Log In button 4 Check the image size 76 x 2592 5 Ch...

Страница 187: ...Page 186 of 244 7 Click the button 8 Click the Save button 9 Click the Search button 10 Choose the image 11 Click the Open button...

Страница 188: ...the influence of the collimator 2 Use the Histogram of the column guideline to set within the range before the curve descends rapidly 3 When you complete the settings as shown in the pictures from 3 t...

Страница 189: ...the trend of the histogram 6 In the histogram set the part where the curve increases and decreases 7 As shown in 7 if the intersections between the vertical lines of Row Points 1 to 5 and the Histogra...

Страница 190: ...O mark on the far right of which is an image of Level 3 among the created images 13 When the Simulation button is chosen an image of O marked in red as shown in 9 is created 14 Choose O marked in red...

Страница 191: ...2 Point Setting Method for Frontal Mode Image 1 The values set in Frontal Mode are the same as SMV Carpus and Waters View 2 The lateral image Point setting method is the same and the column guideline...

Страница 192: ...deline is basically set on the right side and it is changed to the left side and set again In the case of the frontal image the column guideline is basically set from the left side and it is changed t...

Страница 193: ...om QUART Phantom 7 1 3 Test Method 1 Run Console Software and click the CEPH to go into ceph mode 2 Set the High Resolution Lateral Mode exposure condition 80 kVp 10 mA and click the Confirm button 3...

Страница 194: ...Page 193 of 244 7 1 4 Test Result Parameter LSL Measurement value USL Pass Fail LAT start position 605 625 605 625 pixel...

Страница 195: ...ter LSL Lower Specification Limit USL Upper Specification Limit PA Start Position 1160 1180 7 2 2 Phantom Specifications CEPH Phantom QUART Phantom 7 2 3 Test Method 1 Acquire images in High Resolutio...

Страница 196: ...Page 195 of 244 7 2 4 Test Result Parameter LSL Measurement value USL Pass Fail PA Start Position 1160 1180...

Страница 197: ...it Line Pair Resolution 2 5 7 3 2 Phantom Specifications CEPH Phantom QUART Phantom 7 3 3 Test Method The evaluation is conducted in the same manner as in the evaluation methods of 1 3 and 2 3 7 3 4 T...

Страница 198: ...Low Contrast Resolution 2 5 mm 7 4 2 Phantom Specifications CEPH Phantom QUART Phantom 7 4 3 Test Method The evaluation is conducted in the same manner as in the evaluation methods of 1 3 and 2 3 7 4...

Страница 199: ...e program Therefore when new functions or patches are released Firmware files should be upgraded to apply the changes 8 1 Firmware Upgrade Procedure Ethernet Communication 1 Run the Flexspeed2000Manag...

Страница 200: ...Page 199 of 244 4 When the download is complete the Success button appears as shown below Click the Close button to exit...

Страница 201: ...rmware Upgrade Software Serial Communication 1 Run the flash_loader_demo_v2 8 0 exe file You can download the software at http www st com en development tools flasher stm32 html 2 Continue with instal...

Страница 202: ...d between PC and System 1 Run STMFlashLoader Demo exe C Program Files x86 STMicroelectronics Software Flash Loader Demo You can find a demonstrator GUI by searching the program by keyword 2 Attach RS2...

Страница 203: ...Page 202 of 244 3 Run Terminal v1 9b and set the Com Port Baud rate 19200 Data bits 8 Parity none Stop bits 1 and click the Connect button 4 send the rom command and click the Disconnect button...

Страница 204: ...he Port Name is COM1 button and click the Next button Port Name must be the same Port as the Terminal v1 9b program 6 Check the Target is readable Confirm the phrase Please click the Next to proceed a...

Страница 205: ...Page 204 of 244 7 Choose STM32F4_27_37_29_39_2048K corresponding to STM32F427II MCU and click the Next button 8 Choose Download to device and browse a firmware to upgrade and open the file...

Страница 206: ...Page 205 of 244 9 Click the Next button to continue with a firmware upgrade 10 When the firmware upgrade is completed the Download operation finished successfully message will show up...

Страница 207: ...Page 206 of 244 11 Click the Close button to exit the program 12 Run Terminal v1 9b and input the RUN command in the Command window and check the serial message...

Страница 208: ...Page 207 of 244 8 4 Checking Firmware Version Serial Communication 1 Run Terminal v1 9b 2 Send the SPM_TVER command 3 Check the Firmware Version of the MCU Boards...

Страница 209: ...Page 208 of 244 8 5 Appendix 8 5 1 Main MCU Board Parameters...

Страница 210: ..._HALF_COUNT 0226 spm_CPHF_xxxx CEPH_HALF_COUNT PANO ARCT R axis starting position offset 00095 spm_POFS_xxxxx ROTATOR_OFFSET_COUNT 00001 spm_COFS_xxxxx ARCT_ROTATOR_OFFSET_COUNT PANO sequence typesett...

Страница 211: ...al 1 0 01016mm 1 axis collimator position by exposure mode 11395 spm_CBST_xxxxx COL_PANO_CHILD_VAL 1axis collimator 00001 1pulse 912 is default by machanical data 03685 spm_CCST_xxxxx COL_PANO_VAL 1ax...

Страница 212: ...Fan temperature setting 0400 spm_FANT_xxxx FAN_On_Temp 0400 40 degrees C Serial number setting 000000000 spm_SNUM_xxxxxxxxx SERIAL NUMBER MP3 type setting 0003 spm_MPOP_000x MP3 MUSIC Option SET 0 Dif...

Страница 213: ...spm_PDSS_000x Patient Detect Sensor Set Touch sound effect options setting 0000 spm_TSES_000x Touch Sound Effect Set set the location of the sensor and collimator when exposure CT 0344 SPM_CSMV ct_sen...

Страница 214: ...plied Baud The number of signal changes made to the transmission medium per second Each symbol can represent or convey several bits of data Data bit The number of bits that are conveyed or processed p...

Страница 215: ...P Echo SLP EPO Echo SPO Command 4 letters arrangement If it is less than 4 letters the command should be filled up with _ Ex SPM_CT__ Parameter only when commands come with a parameter 4 5 letters arr...

Страница 216: ...SPM_CSON CT sensor power on Independent of the current mode SPM_CSOF CT sensor power off Independent of the current mode SPM_PSON PANOrama sensor power on Independent of the current mode SPM_PSOF PAN...

Страница 217: ...t Notify that in packing mode or not SPM_ECHK Command to check the exposure switch pressed in capture software epm_echk_001 exposure switch not pressed epm_echk_002 exposure switch pressed SPM_DCHK Co...

Страница 218: ...Spain Espana 6 FR France 7 JP Japan 8 RU Russia Rossiya 9 TW Taiwan T ai wan 10 US United States of America 11 AE Arab Emirates 12 PT Portugal 13 CZ Czech Republic 14 PL Poland SPM_MPOP_000x Choose m...

Страница 219: ...the CEPH sensor axis SPM_UAT Read start offset of the table of CEPH sensor axis SPM_CSNM Normal resolution capture mode SPM_ACSH Sharp arch SPM_ACST Standard arch SPM_ACSQ Square arch SPM_ACCH Child s...

Страница 220: ...er is returned to the default value When initialized the existing spm_pver value is viewed and re entered mp3 language setting initialization is domestic No sound when voice is changed by mode Easy to...

Страница 221: ...filter SPM_CES Call CEST Stored Value SPM_CFST_xxxxx CT mode collimator reference position setting command SPM_CFS Call CFST Stored Value SPM_CSCN_xxxxx CEPH scan distance SPM_CSC Request CEPH scan d...

Страница 222: ...mmand for setting collimator drive amount between the inner circle and outer circle during CT mode capture SPM_CCMV_0000 The command for setting collimator drive amount between the inner circle and ou...

Страница 223: ...in the Console Software 6 Automatically start the exposure 3 seconds after the Dark acquisition 9 3 2 Remote Exposure Sequence When Acquiring the Bright Calibration To start a remote exposure during t...

Страница 224: ...t To run a XTST test 1 Run the Terminal or the VAKCAP exe file 2 Send the SPM_XRES command to activate the remote exposure mode 3 Set and input the desired exposure time using the SPM_XTST_xxxx comman...

Страница 225: ...tage feedback This error occurs when there is a difference of 20kV or more in the normal value of Feed Back SMP_ERRR_0007 An error occurs when there is a problem with the tube s current feedback This...

Страница 226: ...or on the operation of Sensor tilting motor Check Sensor tilting motor and Photo Sensor operation SMP_ERRR_0036 Error on operation of 1st Collimator 1 axis left right movement Check 1st Collimator Rig...

Страница 227: ...ror occurs when the current flows over the maximum allowable current when driving the inverter in case of X Ray exposure TUBE MA OVER ERROR 004 This error occurs when there is a problem with the tube...

Страница 228: ...his error occurs while moving the origin of the chinrest up down axis motor Motor jaw up down the error 023 This error occurs while moving the origin of the chinrest Left Right axis motor Motor jaw le...

Страница 229: ...s motor Motor X axis error 040 This error occurs while moving the origin of the Y axis motor Motor Y axis error 041 This error occurs while the sensor X axis motor origin is moving Motor Sensor X axis...

Страница 230: ...010 PC related resolution 000 Unknown error 001 Not supported less than 1280x1024 002 Not supported less than 1200x960 011 PC related Storage space 000 Unknown error 001 Insufficient free disk space l...

Страница 231: ...007 Insufficient storage capacity 008 Read property 009 NULL 010 Combination failed 011 Search failed 040 Directory related Creation failed 041 Directory related Deletion failed 042 Directory related...

Страница 232: ...Invalid file size 004 No access rights 005 Out of memory 006 Memory allocation failure 007 Insufficient storage capacity 008 Read property 009 NULL 010 Does not exist 011 INI section not found 012 IN...

Страница 233: ...Registry related Read failed 123 Registry related Write failed 124 Registry related Deletion failed 125 Registry related Find failed 126 Registry related Cancellation failed 127 Registry related Copy...

Страница 234: ...iled 164 Database related Deletion failed 165 Database related Find failed 166 Database related Cancellation failed 167 Database related Copy failed 168 Database related Access failed 169 Database rel...

Страница 235: ...tialization failure related 000 Can t open the COM port 001 Can t initialize frame grabber interface or can t reserve memory for acquisition 002 Can t communicate to MCU or Modem Ring signal has an im...

Страница 236: ...d 203 When the method type value received is invalid 204 When the input image size information is invalid 205 When the specific pixel value of the input image is outside the specified range 206 When i...

Страница 237: ...7 If an error occurs when releasing the memory used inside the library 004 ZeusCEPH related 000 Unknown error 001 When an error occurs in function 1 of the CEPH image processing module 100 When an err...

Страница 238: ...ed inside the library 006 ZeusPone related 000 Unknown error 001 When an error occurs in function 1 of the Pone image processing module 100 When an error occurs in function 100 of the Pone image proce...

Страница 239: ...When an error occurs in internal function 2 FD_ERROR 003 When an error occurs in internal function 3 ZERO_FEATURE_FD 004 When an error occurs in internal function 4 ZERO_FEATURE_FOI 002 Sequence rela...

Страница 240: ...ector can measure radiation dose without removing the sensor sticker or the rotating unit s cover To measure the radiation dose using the dose measurement mode 1 Attach the dosimeter to the sensor 2 S...

Страница 241: ...mode the settings for the phantom mode are also changed Check if the current and voltage settings are correct before you start a phantom mode 5 Return to the main window Click the dose measurement mo...

Страница 242: ...he radiation dose again after removing the sensor sticker 1 Remove the sticker attached in front of the sensor 2 Attach the dosimeter to the sensor active area 3 Select a modality CBCT PANO and CEPH a...

Страница 243: ...ers and measure the radiation dose again 1 Remove the sticker in front of the rotating unit 2 Follow the instructions in Chapter 1 1 2 3 Rotating Unit Part to remove the rotating unit s front and back...

Страница 244: ...vatech A9 www vatech com...

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