Vatech A9 (PHT-30CSS)
Technical manual
VDH-TeM-098
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5.
Collimator Alignment Evaluation
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 Align Align Image
5.2. Test Method
1. Complete the collimator setup and acquire the image in the stopped 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.
5.3. Test Result
Parameter
LSL
Measurement value
USL
Pass/Fail
Threshold
70%
Upper
1
10
Lower
1
10
Left
2
2
Right
1
2
TOP
LEFT
RIGHT
BOTTOM