Magnetic Resonance
Magnetic Resonance
MR
Articles | Volume 6, issue 2
Articles | Volume 6, issue 2
https://doi.org/10.5194/mr-6-281-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/mr-6-281-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 6, issue 2
Research article
 | 
02 Dec 2025
Research article |  | 02 Dec 2025

Optimized shaped pulses for a 2D single-frequency technique for refocusing (SIFTER)

Paul A. S. Trenkler, Burkhard Endeward, Snorri T. Sigurdsson, and Thomas F. Prisner

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Short summary
Pulsed electron paramagnetic resonance can measure distances and orientation between two paramagnetic markers. If they are rigidly attached to a biomolecule, advanced insights into the structure and dynamics of the biomolecule follow. We used chirp pulses to perform real two-dimensional experiments with much shorter experimental time compared to experiments with monochromatic microwave pulses. We also present new pulse sequences and give a detailed protocol for setting up such experiments.
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