Articles | Volume 1, issue 1
https://doi.org/10.5194/mr-1-45-2020
https://doi.org/10.5194/mr-1-45-2020
Research article
 | 
04 May 2020
Research article |  | 04 May 2020

Study of electron spectral diffusion process under DNP conditions by ELDOR spectroscopy focusing on the 14N solid effect

Marie Ramirez Cohen, Akiva Feintuch, Daniella Goldfarb, and Shimon Vega

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AR by Akiva Feintuch on behalf of the Authors (25 Mar 2020)  Author's response    Manuscript
ED: Publish as is (26 Mar 2020) by Konstantin Ivanov (deceased)
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Short summary
DNP is a method used to enhance NMR signals by transferring polarization from radicals to nuclear spins using microwave irradiation. The EPR spectrum of the radical during the irradiation is determined by a process called spectral diffusion and affects the DNP efficiency. This process can be measured by electron–electron double resonance. We explored experimentally and theoretically the contribution of the hyperfine coupling of the 14N nuclei in the nitroxide radical to the spectral diffusion.