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分物理安装、TUBE的POR、TUBE的ISO的Adjustment
一、物理安装:
1. 把 Gantry 放到 0° tilt 和 HOME 位;把Table放到最低位,便于拆前盖。
2. 在 Gantry 的背面底部关闭 ‘Rotate‘, ‘XG Power‘ and ‘Slip Ring115V‘开关。
3. Remove Gantry的前盖、左右侧盖(移前盖时正确和小心使用带轮的专用工具)。
4. 把Gantry 的TGP 板的SERVICE 开关打到ON,旋转 Gantry使得x-ray tube I在 90 degree 位置。
5. Insert Gantry 右边的固定销钉,反复试验,直到Gantry不在旋转为止。
6. Remove 提升导轨的固定螺丝。
7. Slide out 提升导轨, 然后 install导链或者其他提升工具。
8. Slide提升导轨到合适的位置,然后在 X-ray tube 的吊钩系上导链的挂钩(注意千万不能脱落)。
9. 从 X-ray tube取出 Cathode HV cable lead ,让HV cable插头的3个弹簧片对机壳或者地放电,但是必须保证HV cable lead不损害。
Note
Take care not to damage the HV Cable leads
10. 檫去 HV cable lead多余的高压油,并且包好HV cable lead。
11. 从 X-ray tube取出Anode HV cable ,让HV cable插头的3个弹簧片对机壳或者地放电,但是必须保证HV cable lead不损害。
12. 檫去 HV cable lead多余的高压油,并且包好HV cable lead。
13. Cut所有的控绑HV cable的PVC扎带,千万别掉到Gantry里面。
14. Disconnect the rotor control connector.
15. Disconnect Fan/Pump power cable connector (yellow cable).
16. 松开adjustment X-ray tube ISO内六方M6 screw。
17. 松开并取出球衬垫上的 4 mounting screws (Carefully with the X-ray tube secure : Torque = 285kgf.cm)。
18. Use 提升导链慢慢落下 X-ray tube 到地面,注意先升后降。
19. Remove 金属衬垫到新X-ray tube,除去金属托盘上的4个旧的螺丝,不能把它们用在新X-ray tube上。
20. Install 金属衬垫到新X-ray tube ,然后提升导链到球管索要安装的位置。
21. Install新X-ray tube 倒着steps 19 through 6. In the step 17,使用新的螺丝将X-ray tube的金属衬垫固定到Gantry上面。
22. Retie any tie wraps which were removed in step 13. (see illustration below).
23. Perform the following to initialize the Filament Data:
a. Select the ‘Clear Filament aging/Tube status’ menu as below;
Service Menu-->Diagnostics-->Generator Test-->Clear Filament aging/Tube status
b. Click ‘Apply’, then click ‘OK’ to clean-up the old Filament/Tube data.
The system automatically restarts.
24. 调节X-ray tube的POR(X-ray tube前后位置),略。Manual <Functional Check/Adjustment>
25. 调节X-ray tube的ISO(X-ray tube左右位置),略. Manual <Functional Check/Adjustment>
26. 在 Gantry 的背面底部打开 “Slip Ring 115V” switch,并校验 radiator FAN for the x-ray tube cooling and JEDI Power Unit FAN 的运行是否正常。
27. Update ‘Tube Usage’ Log and ‘Tube Spits’ log:
a. Select Update System Log; refer to below:
Service Menu-->Error logs-->Update System Log
b. Select Tube Usage from the lists,
c. Type/enter the new Tube information, and press [Create].
d. Select Tube Spits from the lists, and press [Create].
e. Select Bad Raw from the lists, and press [Create].
28. Perform the following check/adjustment according to CD-ROM manual, Functional Check & Adjustment.
CLEARANCE BETWEEN ROTATIONAL AND STATIONARY COMPONENTS
X-RAY ALIGNMENT
KV AND mA CHECK
DAS COUNT CHECK
Q CALIBRATION (Q-Cal)
SYSTEM CALIBRATION
CT No. ADJUSTMENT
IMAGE PERFORMANCE
IMPORTANT NOTE: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Certify that the Rear TSW is horizontally, vertically and center aligned.
Adjust the Rear TSW so that there is no clearance between its edge and the cover.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- Stationary, 120 kV 30 mA x 20 times 2 sec scan 2sec ISD
- Stationary, 140 kV 30 mA x 20 times 2 sec scan 2sec ISD
29. 物理安装完成。
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