Meeting Banner
Abstract #0448

Field Probes with In-Situ Controllable Thermal Relaxation Times

David O. Brunner 1 , Simon Gross 1 , Jennifer Nussbaum 1 , Benjamin E. Dietrich 1 , Christoph Barmet 1,2 , and Klaas P. Pruessmann 1

1 Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland, 2 Skope Magnetic Resonance Technologies LLC, Zurich, Switzerland

For optimal performance, the T 1 and T 2 relaxation times of NMR based field sensors should be appropriately chosen compared to the repetition time of their re-excitation in the envisioned application. Too fast relaxations would prevent acquiring long read-outs, however too fast re-excitation would generate confounded field values due to occurring spurious echoes in the sensor. To date this is achieved by paramagnetic dopants added when manufacturing the probes but in this work we present an approach based on electrochemical reactions allowing tuning the relaxation time of an existing sensor between reversibly 3 ms and 60 ms.

This abstract and the presentation materials are available to members only; a login is required.

Join Here