SL_Introduction.pdf - Walther Meißner Institut
SL_Introduction.pdf - Walther Meißner Institut
SL_Introduction.pdf - Walther Meißner Institut
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R. Gross © <strong>Walther</strong>-Meißner-<strong>Institut</strong> (2001 - 2012)Biomagnetismenvironmental noise signalsearth magnetic fieldurban noisecar @ 50mscrew driver @ 2mtransistor,IC chip @ 2msingle transistor@ 1mcar @ 2kmB (Tesla)10 -410 -510 -610 -710 -810 -910 -1010 -1110 -1210 -1310 -1410 -15biomagnetic signalslung particlehuman heartmusclesfoetal hearthuman eyehuman brain (a)human brain(stimulated)foetal brain1 mmSuperconductingQuantum InterferenceDetector (SQUID)sensitivity:a few fT/√HzPTB BerlinIntro - 40
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