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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Solid State Nucl Magn Reson. 2015 Oct 9;72:79–89. doi: 10.1016/j.ssnmr.2015.10.001

Fig. 8.

Fig. 8

High power microwave frequency modulation scheme for the cross effect (CE) under MAS. (a) Anode driving potential modulations at selected frequencies of 10 kHz (black), 100 kHz (blue), and 500 kHz (red). (b) Predicted bandwidth of the microwave frequency output arising from modulating the anode potential overlaid on the nitroxide EPR lineshape at 7 T. The EPR spectrum is from EasySpin [44], and was simulated without homogeneous broadening in order to emphasize the 14N hyperfine couplings. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)