Sudheer Jawla, Qing Zhe Ni
In this paper, we describe the design and experimental results from the rebuild of a 250 GHz gyrotron used for Dynamic Nuclear Polarization enhanced Nuclear Magnetic Resonance spectroscopy on a 380 MHz spectrometer. Tuning bandwidth of approximately 2 GHz is easily achieved at a fixed magnetic field of 9.24 T and a beam current of 95 mA producing an average output power of >10 W over the entire tuning band. This tube incorporates a double disk output sapphire window in order to maximize the transmission at 250.58 GHz. DNP Signal enhancement of >125 is achieved on a 13C-Urea sample using this gyrotron.
@article{05980d9a-5fb4-4db1-a8ec-ed14a8bffbe1,
title={Continuously Tunable 250 GHz Gyrotron wi},
author={Sudheer Jawla and Qing Zhe Ni},
year={2026},
language={en}
}TY - JOUR TI - Continuously Tunable 250 GHz Gyrotron wi AU - Sudheer Jawla AU - Qing Zhe Ni PY - 2026 LA - en ER -
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