Table of ContentsApplications of SQUID Microscopy in Bio-Magnetism Outline Cryostat Design Dewar Tail Retractable Pickup Coil SQUID Microscope - Scanning Stage SQUID Setup Sensor Design - Tangential Field Double-Loop SQUID Field Sensitivity of LTS-SQUID with integrated 0.5 mm pickup loop Pickup Coil Field Sensitivity Field Sensitivity Field Sensitivity Wire Scan Natural Remnant Magnetization - Basalt Could we be Martian? Panspermia - Lives On! Allan Hills Meteorite – ALH84001 In collaboration J. Kirschvink, B. Weiss, H. Vali Thermal Demagnetization – ALH84001 Thermal Demagnetization – ALH84001 ALH84001-Fusion Crust ALH84001-Fusion Crust Cardiac Electrophysiology Do measurements of the magnetic field associated with bioelectric currents provide new or different information compared to measurements of the electric field? The Difficulty with the Magnetocardiogram Magnetically Silent Sources Getting closer ... Simplify the Problem ... Langendorff perfused Isolated Rabbit Heart Langendorff perfused Isolated Rabbit Heart SQUID Closeup MCG As a Function of Position Cathodal Current Injection Initiation of Action Currents Propagation of Action Currents Cardiac Bidomain BioDomain – Equations - Current Injection Layered Bidomain Model Propagation of Action Currents Anisotropy Action Potential Propagation Circular Action Potential Propagation of Action Currents Can we extract Data? Experimental Setup - Optical Imaging S2- Point Stimulation Isochrones - left ventricular free wall Isochrones - Apex Now - Add some Twist PPT Slide Dipole Signature in St-segment Answers Future Developments Questions The Cardiac Depolarization Wave Front
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Author: Franz Josef Baudenbacher
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