Utility of a tuneless plug and play transmission line probe

Scott, Eric; Stettler, Joel; Reimer, Jeffrey A.

doi:10.1016/j.jmr.2012.05.015

Cited by 10 publications

(8 citation statements)

References 13 publications

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“…Using non-tuned coils for NMR spectroscopy has been considered in the 60s of last century 21,22 ; however, it has remained unexploited in the following decades of developments of ever higher field spectrometers. During the last decade, the 'non-resonant' NMR concept has been picked-up again, and shown useful for lowfrequency and/or low-resolution NMR applications, already corroborating the validity of this approach [23][24][25][26] . However, none of these report on high-resolution high-field applications, and advanced homo-and heteronuclear two-dimensional (2D) NMR applications of non-tuned coils.…”

mentioning

confidence: 89%

Multinuclear nanoliter one-dimensional and two-dimensional NMR spectroscopy with a single non-resonant microcoil

Fratila

Gómez

Sýkora³

et al. 2014

Nat Commun

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Nuclear magnetic resonance (NMR) spectroscopy is a powerful analytical technique, but its low sensitivity and highly sophisticated, costly, equipment severely constrain more widespread applications. Here we show that a non-resonant planar transceiver microcoil integrated in a microfluidic chip (detection volume 25 nl) can detect different nuclides in the full broad-band range of Larmor frequencies (at 9.4 T from 61 to 400 MHz). Routine one-dimensional (1D) and two-dimensional (2D), homo-and heteronuclear experiments can be carried out using the broad-band coil set-up. Noteworthy, heteronuclear 2D experiments can be performed in a straightforward manner on virtually any combination of nuclides (from classical 1 H-13 C to more exotic combinations like 19 F-31 P) both in coupled and decoupled mode. Importantly, the concept of a non-resonant system provides magnetic fieldindependent NMR probes; moreover, the small-volume alleviates problems related to field inhomogeneity, making the broad-band coil an attractive option for, for example, portable and table-top NMR systems.

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mentioning

confidence: 89%

Multinuclear nanoliter one-dimensional and two-dimensional NMR spectroscopy with a single non-resonant microcoil

Fratila

Gómez

Sýkora³

et al. 2014

Nat Commun

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“…Sample characteristics are summarized in Table 1 and pictures of the samples post-irradiation and annealing are shown in Figure 1. Equipment NMR experiments were conducted using a homebuilt non-resonant transmission line probe [36] and goniometer, an Oxford 7.05 T magnet, a single channel Tecmag LapNMR spectrometer, and an ENI LPI-10 RF amplifier. Details of the goniometer are included in Appendix A.…”

Section: Diamond Samplesmentioning

confidence: 99%

“…NMR probe and probe body construction NMR transitions are excited and detected with a non-resonant transmission line probe. Details of probe construction are found in reference (36). The split solenoid design allows optical access ( Figure A1).…”

Section: Appendix a -Construction Of Homebuilt Equipmentmentioning

confidence: 99%

The phenomenology of optically pumped 13C NMR in diamond at 7.05 T: Room temperature polarization, orientation dependence, and the effect of defect concentration on polarization dynamics

Scott

Drake

Reimer

2016

Journal of Magnetic Resonance

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Room temperature optical illumination of NV- imbibed single crystal diamonds with a 532 nm laser produces (13)C polarization enhancements up to 200 times greater than that of the thermal equilibrium value at 7.05 T. We report high field NV- mediated (13)C polarization as a function of the number and type (NV- and P1) of defects in commercially available diamonds. Surprisingly, both positive and negative (13)C polarizations are observed depending on the orientation of the crystal with respect to the external magnetic field and the electric field vector of the optical illumination. The data reported herein cannot be explained by a previously proposed mechanism.

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“…Recently, the bandwidth of tuneless broadband NMR probes constructed by a transmission line is able to reach tens and even hundreds of MHz [10,11]. Broadband continuous RF signals can be generated conveniently using the technology of direct digital synthesis.…”

Section: Introductionmentioning

confidence: 99%

Broadband Continuous Nuclear Magnetic Resonance Signal in a Pulsed Magnetic Field: Numerical Solutions of Bloch Equations under Radio Frequency Irradiation

2015

Appl Magn Reson

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A novel nuclear magnetic resonance (NMR) experimental scheme is presented, which has promising applications in pulsed magnetic fields. The experimental scheme, broadband continuous wave NMR (BB-CW-NMR), is validated with numerical solutions of Bloch equations in pulsed fields under broadband continuous radio frequency (RF) irradiation. Furthermore, the influence of experimental parameters such as relaxation times and RF power on the waveform and amplitude of the broadband continuous NMR signal is analyzed briefly. To verify the reliability of the numerical calculation program, numerical solutions of the Bloch equations under the irradiation of RF pulse sequence are given. There is good agreement between simulation and expected experimental results, indicating the validity of the program. Finally, we estimate the amplitude of the NMR signal, the level of noise, and RF interference in a BB-CW-NMR experiment. The results of simulation and analysis demonstrate that the BB-CW-NMR experiment scheme is feasible under the conditions of appropriate relaxation times and RF power if the leakage of the RF field into the receiver coil is reduced by at least a factor of 10 6 .

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Utility of a tuneless plug and play transmission line probe

Cited by 10 publications

References 13 publications

Multinuclear nanoliter one-dimensional and two-dimensional NMR spectroscopy with a single non-resonant microcoil

Multinuclear nanoliter one-dimensional and two-dimensional NMR spectroscopy with a single non-resonant microcoil

The phenomenology of optically pumped 13C NMR in diamond at 7.05 T: Room temperature polarization, orientation dependence, and the effect of defect concentration on polarization dynamics

Broadband Continuous Nuclear Magnetic Resonance Signal in a Pulsed Magnetic Field: Numerical Solutions of Bloch Equations under Radio Frequency Irradiation

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