Search Results - "Hunter, Robert I."

Large cross-effect dynamic nuclear polarisation enhancements with kilowatt inverting chirped pulses at 94 GHz by Zhao, Yujie, El Mkami, Hassane, Hunter, Robert I., Casano, Gilles, Ouari, Olivier, Smith, Graham M.

“…Dynamic nuclear polarisation (DNP) is a process that transfers electron spin polarisation to nuclei by applying resonant microwave radiation, and has been…”
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Geometric model-based fitting algorithm for orientation-selective PELDOR data by Abdullin, Dinar, Hagelueken, Gregor, Hunter, Robert I., Smith, Graham M., Schiemann, Olav

“…Pulsed electron-electron double resonance (PELDOR or DEER) spectroscopy is frequently used to determine distances between spin centres in biomacromolecular…”
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Toward increased concentration sensitivity for continuous wave EPR investigations of spin-labeled biological macromolecules at high fields by Song, Likai, Liu, Zhanglong, Kaur, Pavanjeet, Esquiaqui, Jackie M., Hunter, Robert I., Hill, Stephen, Smith, Graham M., Fanucci, Gail E.

“…[Display omitted] •An EPR holder designing for aqueous samples at high magnetic fields is presented.•Concentration sensitivities of 2–20μM were achieved.•Its…”
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Design of High-Performance Millimeter Wave and Sub-Millimeter Wave Quasi-Optical Isolators and Circulators by Hunter, R.I., Robertson, D.A., Goy, P., Smith, G.M.

“…Faraday rotators using permanently magnetized ferrite materials are used to make quasi-optical isolators and circulators at millimeter wave and sub-millimeter…”
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A Gadolinium Spin Label with Both a Narrow Central Transition and Short Tether for Use in Double Electron Electron Resonance Distance Measurements by Shah, Anokhi, Roux, Amandine, Starck, Matthieu, Mosely, Jackie A, Stevens, Michael, Norman, David G, Hunter, Robert I, El Mkami, Hassane, Smith, Graham M, Parker, David, Lovett, Janet E

“…The design, synthesis, and application of a nine-coordinate gadolinium­(III)-containing spin label, [Gd.sTPATCN]-SL, for use in nanometer-distance measurement…”
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DEER Sensitivity between Iron Centers and Nitroxides in Heme-Containing Proteins Improves Dramatically Using Broadband, High-Field EPR by Motion, Claire L, Lovett, Janet E, Bell, Stacey, Cassidy, Scott L, Cruickshank, Paul A. S, Bolton, David R, Hunter, Robert I, El Mkami, Hassane, Van Doorslaer, Sabine, Smith, Graham M

“…This work demonstrates the feasibility of making sensitive nanometer distance measurements between Fe­(III) heme centers and nitroxide spin labels in proteins…”
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W-band PELDOR with 1 kW microwave power: molecular geometry, flexibility and exchange coupling by Reginsson, Gunnar W, Hunter, Robert I, Cruickshank, Paul A S, Bolton, David R, Sigurdsson, Snorri Th, Smith, Graham M, Schiemann, Olav

“…A technique that is increasingly being used to determine the structure and conformational flexibility of biomacromolecules is Pulsed Electron-Electron Double…”
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Compact Corrugated Feedhorns With High Gaussian Coupling Efficiency and -60\;\text Sidelobes by McKay, Johannes E., Robertson, Duncan A., Speirs, Peter J., Hunter, Robert I., Wylde, Richard J., Smith, Graham M.

“…We demonstrate that very high performance, extremely compact, scalar corrugated feedhorns can be designed and constructed by optimizing the excitation and…”
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Wideband Corrugated Feedhorns, for Radar, Communications, Radiometry and Quasi-Optics by Sung, Daniel J., Thomsen, Nina, Macpherson, Stuart, Hunter, Robert I., Rahman, Samiur, Robertson, Duncan A., Wylde, Richard J., Smith, Graham M.

“…A wide variety of desirable antenna beam patterns can be synthesized by optimal excitation and phasing of the HE 11 and HE 12 modes in scalar corrugated…”
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The use of composite pulses for improving DEER signal at 94GHz by Motion, Claire L., Cassidy, Scott L., Cruickshank, Paul A.S., Hunter, Robert I., Bolton, David R., El Mkami, Hassane, Van Doorslaer, Sabine, Lovett, Janet E., Smith, Graham M.

“…[Display omitted] •Implementation of composite pulses on a home-built 1kW pulsed W-band spectrometer.•Simulation of echoes including B1 profile of the…”
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High-sensitivity Gd 3+ -Gd 3+ EPR distance measurements that eliminate artefacts seen at short distances by El Mkami, Hassane, Hunter, Robert I, Cruickshank, Paul A S, Taylor, Michael J, Lovett, Janet E, Feintuch, Akiva, Qi, Mian, Godt, Adelheid, Smith, Graham M

“…Gadolinium complexes are attracting increasing attention as spin labels for EPR dipolar distance measurements in biomolecules and particularly for in-cell…”
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High-sensitivity Gd3+–Gd3+ EPR distance measurements that eliminate artefacts seen at short distances by Hassane EL Mkami, Hunter, Robert I, Cruickshank, Paul A S, Taylor, Michael J, Lovett, Janet E, Feintuch, Akiva, Mian Qi, Godt, Adelheid, Smith, Graham M

“…Gadolinium complexes are attracting increasing attention as spin labels for EPR dipolar distance measurements in biomolecules and particularly for in-cell…”
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Waveguide Characterization of Various Solid Absorbing Materials at W-band by Hunter, R. I., Robertson, D. A., Smith, G. M.

“…We present results for the complex refractive index and characteristic relative impedance of various commercially supplied solid absorbing materials at W-band…”
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Mechanically Tunable Conformable Holographic Metasurfaces by Xiao, Jianling, Hunter, Robert I., Robertson, Duncan A., Smith, Graham M., Horsley, Simon, Schulz, Sebastian A., Di Falco, Andrea

“…Metasurfaces consist of two-dimensional distributions of subwavelength meta-atoms that can be used to effectively manipulate the amplitude, phase and…”
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Optimization and Measurement of a Smoothly Profiled Horn for a W-Band Gyro-TWA by Liang Zhang, Wenlong He, Donaldson, Craig R., Smith, Graham M., Robertson, Duncan A., Hunter, Robert I., Cross, Adrian W.

“…In this paper, a smoothly profiled horn was designed and manufactured to replace a corrugated output horn for a W-band gyrotron traveling-wave amplifier with…”
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An Output Coupler for a W-Band High Power Wideband Gyroamplifier by McElhinney, Paul, Donaldson, Craig R., McKay, Johannes E., Liang Zhang, Robertson, Duncan A., Hunter, Robert I., Smith, Graham M., Wenlong He, Cross, Adrian W.

“…An output coupler for a W-band high power wideband gyroamplifier has been designed, manufactured, and experimentally measured. It consists of a high…”
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Shape Dependent Conformable Holographic Metasurfaces by Xiao, Jianling, Hunter, Robert I., Robertson, Duncan A., Smith, Graham M., Horsley, Simon, Schulz, Sebastian A., Falco, Andrea Di

“…In this paper, the design, fabrication, and experimental demonstration of conformable holographic metasurfaces are reported. Herein, it is shown that the…”
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The use of composite pulses for improving DEER signal at 94 GHz by Motion, Claire L., Cassidy, Scott L., Cruickshank, Paul A.S., Hunter, Robert I., Bolton, David R., El Mkami, Hassane, Van Doorslaer, Sabine, Lovett, Janet E., Smith, Graham M.

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Compact Corrugated Feedhorns With High Gaussian Coupling Efficiency and [Formula Omitted] Sidelobes by McKay, Johannes E, Robertson, Duncan A, Speirs, Peter J, Hunter, Robert I, Wylde, Richard J, Smith, Graham M

“…We demonstrate that very high performance, extremely compact, scalar corrugated feedhorns can be designed and constructed by optimizing the excitation and…”
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Compact Wideband Corrugated Feedhorns With Ultra-Low Sidelobes for Very High Performance Antennas and Quasi-Optical Systems by McKay, J. E., Robertson, D. A., Cruickshank, P. A. S., Hunter, R. I., Bolton, D. R., Wylde, R. J., Smith, G. M.

“…The corrugated or scalar feedhorn has found many applications in millimeter wave and sub-millimeter wave systems due to its high beam symmetry, relatively low…”
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