Quality Assurance

Calibration procedures should be performed for quality assurance and in order to evaluate the performance of the MEG system.

CALIBRATION PROCEDURE:	PERFORM WHENEVER:
1. Noise / Gain Measurement	-there is line frequency noise
2. Head Coil Calibration	-head localization results / accuracy is in doubt
3. EEG Calibration	-EEG results are uncertain
4. Magnetic Phantom Measurement	-the performance of the MEG system is in question

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