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. Author manuscript; available in PMC: 2019 Sep 20.
Published in final edited form as: J Magn Reson. 2018 Dec 14;299:42–48. doi: 10.1016/j.jmr.2018.12.011

Fig. 3.

Fig. 3.

Block diagram of EPR system. In this experimental setup, a Tektronix AWG70001 arbitrary waveform generation is the RF excitation source. An Agilent 8648D is synchronized with the AWG to provide a synchronized clock to the Signatec PX14400 data acquisition board. The RF excitation is input into a custom in-house EPR cross-coil resonator. The RF response from the resonator is amplified and filtered before being acquired by the data acquisition board.