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syngo CT 2007E Emotion Operator Manual
02/2008
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F.7-1
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CHAPTER
F.6
F.7
Constancy Test of the
Monitor
Monitors are subjected to a constancy test to ensure that the
image quality and measured values lie within a defined range.
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Constancy test requirements for image display devices (moni-
tors) may vary according to different national regulations.
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The constancy test described herein complies with the German
X-ray regulations (Deutsche Roentgenverordnung) and is based
on requirements given in DIN V 6868-57.
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We recommend that the constancy test and collection of the
reference values is performed and documented by authorized
personnel.
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Image quality of the monitor
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The acceptance test performed during initial start up commis-
sioning ensures optimum image quality of the device. The
results of these measurements are documented in an accept-
ance test report and serve as reference values for the follow up
constancy test.
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If any alterations are made to the device that affect the image
quality, e.g., repairs, replacement of parts, or readjustments,
the acceptance test according to the Germany X-ray regulations
must be repeated.
F.7
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