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Constancy Test Quality Assurance
F.3-6 SOMATOM Spirit
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✧ Press the Start key on the control box.
The phantom position and the gantry tilt are checked.
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The system alerts you if the phantom is positioned incorrectly.
Correct the position, if necessary.
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The system then starts the first quality measurement. It is usu-
ally checking the Lightmarker position (z-positioning).
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Interrupting the constancy
test
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You can interrupt each test within a constancy measurement.
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✧ Click the Cancel button.
The current measurement is aborted.
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