Periodic Maintenance
8-17
8.8.4. Shading Correction Check
Refer to 4.6.9 to perform shading correction check. Perform calibration if needed.
8.9. Dose Check
8.9.1. Dose Rate Check
1. Using a dosimeter for the measurements. Place the dosimeter probe on the I.I. grid center. Use 2mm
copper to cover the beam path on the X-ray tube. Take exposure in Auto fluoro mode. Dose rate
should be within:
Brivo OEC 715/785 (I.I PN: 5075001): 4.1±0.3mR/min (35.92±2.63uGy/min or 2155±157uGy/hr)
Brivo OEC 715/785/865 (I.I PN: 5085917): 3.1±0.3mR/min (27.16±2.63uGy/min or 1629±157uGy/hr)
Brivo OEC 865 (I.I PN: 5075008): 3.1±0.3mR/min (27.16±2.63uGy/min or 1629±157uGy/hr)
2. Indicate if adjustments were made on the Checklist.
8.9.2. DAP Accuracy Check
Refer to 4.7 to perform DAP accuracy check. Perform the DAP calibration, if needed.
The field size in the form should be measured by field size measure tool.
8.10. Reporting
8.10.1. Install Equipment Covers
Install all equipment covers you removed earlier. Make sure all air filters are clean and properly attached
to the covers.
8.10.2. Complete PM Comments
Write any comments important to the PM procedure in the Comments section of the PM Checklist.
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