A novel THz-band double-beam gyrotron for high-field DNP-NMR spectroscopy
 

From The DNP-NMR Blog:

A novel THz-band double-beam gyrotron for high-field DNP-NMR spectroscopy

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Idehara, T., et al., A novel THz-band double-beam gyrotron for high-field DNP-NMR spectroscopy. Review of Scientific Instruments, 2017. 88(9): p. 094708.


http://dx.doi.org/10.1063/1.4997994


We present the first experimental results of the study on a novel second harmonic THz-band doublebeam gyrotron. The tube has demonstrated a stable single-mode operation with output parameters that are appropriate for the next-generation 1.2 GHz dynamic nuclear polarization-nuclear magnetic resonance spectroscopy. Besides the design mode (TE8,5), a series of other fundamental and second harmonic modes have been excited. This makes the new gyrotron a versatile radiation source, which can be used also in other applications of the high-power science and technologies.
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