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Switching the System On and Off Operation
D.1-8 SOMATOM Spirit
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System checkup and calibration
D.1
After syngo has started up, you should start system checkup
and calibration to enable the system for scanning.
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The checkup procedure is started in the Checkup dialog box
which will be displayed after system startup. If the Checkup dia-
log box does not appear automatically, select Setup > Checkup.
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i
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If the last checkup has been completed no longer than 12 hours
ago, the time since the last complete checkup is indicated. It is
recommended to perform the checkup or calibration once a day
to assure best system performance.
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You have the option of skipping the checkup. If necessary, you
can calibrate the system later (Setup > Calibration).
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CAUTION
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The detector heating is switched off as long as the system is dis-
connected from the power supply. When you restart the system,
the detector has not yet reached operating temperature!
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Wrong diagnosis due to image artifacts.
D.1
✧ Calibrate the system as part of the check-up. Repeat calibra-
tion (Setup > Calibration) if ring artifacts occur.
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