Scaled drawings of (a) one-loop-one-gap , (b) two-loop-one-gap , (c) three-loop-two-gap , and (d) five-loop-four-gap loop-gap resonators.
The assembled design of the (a) five-loop-four-gap loop-gap resonator and the (b) cylindrical resonator at band. Iris placement is sidewall coupled and centered in both resonator designs. Frequency adjustment screws allow fine-tuning of the cylindrical frequency by changing the ratio.
band translation setup. The resonator is inserted into the horizontal (perpendicular to ) port by sliding the air-bearing table along the granite slab.
Assembled drawing of the band collet system: (a) view assembled with sample and (b) exploded view. Two end sections are placed concentric with the resonator body and form the top and bottom end plates of the resonator. The sample is placed through the compression screw, bearing, and sphere. As the compression screw is tightened, the PTFE sphere becomes oblate and secures the sample.
Using EDM technology, the cylindrical resonator body was cut in a keylike shape and press fit into the graphite holder. The end sections were then fastened on the top and bottom of the graphite, completing the assembly.
Multiquantum experiment using of TEMPO. (a) , (b) , (c) , and (d) . As the quantum number increases, the ratio of signal heights of the first to the third line increases, which provides information on the product of and . See Ref. 10.
Continuous-wave field modulation experiment using of TEMPO. The figure provides a benchmark of sensitivity and stability for band EPR of aqueous spin-label samples.
Summary of LGR dimensions at .
Characteristics of the five-loop-four-gap LGR and cylindrical at .
Summary of cylindrical dimensions at .
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