Nuclear Magnetic Resonance At Microwave Frequencies

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Magnetic resonance with quantum microwaves

by A Bienfait 2016 Cited by 3 magnetic resonance of nuclear (NMR [4]) and electronic (ESR[5]) spins. the microwave field in a resonator of frequency ω0 and quality factor Q. The key 

Jubilees of Radio-Frequency Spectroscopy - JSTOR

by B Bleaney 1997 Cited by 1 resonance at Harvard (1945) and nuclear magnetic induction at Stanford (1945); ferromagnetic resonance in Oxford (1946); and microwave spectroscopy of 

Double-Resonance Techniques

and are symmetrically spaced about the nuclear magnetic resonance frequency nn of the nucleus for the magnetic field at which the microwave saturation is 

Two-dimensional nuclear magnetic resonance spectroscopy

by J Smits 2019 Cited by 31 protocols at low microwave frequencies (15). much smaller than the nuclear spin angular frequency) and on a shorter timescale than T1 (27).


by A ROBERTS 1949 Cited by 1 brought near to the resonant frequency of the cavity, causing a shift in MICROWAVE MAGNETIC ABSORPTION SPECTRUM OF ATOMIC CESIUM.

Dynamical nuclear polarization using multi-colour control of

by P Yang 2015 Cited by 4 one single NV center by sweeping the Rabi frequency of microwave field (while with one single fixed frequency), e.g. in magnetic resonance spectroscopy using​ 

Magnetic Resonance - SAGE Journals

by ED Becker 1996 Cited by 2 frequency (rf) region of the spec- The first demonstration of a nuclear magnetic resonance in a molecular beam. 75 grossed with microwave technology,.

Room-temperature in situ nuclear spin hyperpolarization from

by JP King Cited by 85 NMR amplitude (a.u.). Polarization time (s). Microwave frequency (MHz). 13. C spin polarization (%).

Electron Decoupling with Chirped Microwave Pulses for Magic

by EP Saliba 2019 Dynamic Nuclear Polarization Nuclear Magnetic Resonance Improved Electron Nutation Frequencies with Microwave Resonators

Magnetic Resonance with Squeezed Microwaves - Physical

by A Bienfait 2017 Cited by 54 gravitational wave detection [8,9], atomic absorption spec- troscopy [10] microwave frequencies to magnetic resonance spectros- copy for 

Dynamic Nuclear Polarisation Enhanced Solid-State Nuclear

by M Mais 2018 Cited by 3 Enhanced solid-state NMR technique significantly reduces experiment time for surface studies. Marco Mais at microwave frequencies and is most efficient at.

The Microwave Sources for EPR Spectroscopy

by M Hruszowiec Electron paramagnetic resonance (EPR) is a very sensitive and specialized method that the constant magnetic field at a constant frequency v (g is. Lande factor). years NMR/DNP [41] spectroscopy experiments have been widely reported.

Electromagnetic Evaluation of HTS RF Coils for Nuclear

by T Yamada 2014 Cited by 12 nuclear magnetic resonance (NMR) RF coils with a high unloaded quality factor (​Qu). We analyzed the microwave resonant prop- erties of a is still not widely used because it is not easy to adjust the resonance frequency of.

1 Chapter 13: Nuclear Magnetic Resonance (NMR

1H and 13C are the most important NMR active nuclei in (a) Normally the nuclear magnetic fields are randomly oriented νο operating frequency in MHz  Missing: microwave ‎ Must include: microwave

Triple resonant electromagnetic structures for - DTU Orbit

8 Jul 2019 Zeeman energy levels that dictate the NMR signal intensity. Microwave power in solid-state sources is increasingly scarce at higher magnetic sources at the corresponding electron spin resonance (ESR) frequencies.

A Simplified Microwave Frequency Electron Spin Resonance

simplified microwave frequency spectrometer in the 7- to 10-GHz range with NMR and EPR, Selected Reprints, American Institute of Physics, New York 1965

Theoretical Study of a High Permittivity Dielectric Resonator

by MA Moussu 2018 new probe for Nuclear Magnetic Resonance (NMR) microscopy, based on It is tuned and matched at the Larmor frequency with capacitors while the sample is properties of low loss materials in the microwave region.

Distance measurement between trityl radicals by pulse - DOI

dipolar evolution takes place during strong microwave irradiation. the technique Audio-frequency NMR in a nutating frame , because their phase modulation 

Frequency-Swept Integrated Solid Effect - [email protected]

by JJ Walish 2017 low power sweeps of the exciting microwave frequencies to constructively The history of the development of both nuclear magnetic resonance (NMR) and 

Microwave-free nuclear magnetic resonance at molecular scales

by JDA Wood 2017 Cited by 32 with oNV the NV transition frequency and ot ¼ gtB the Larmor frequency of the target spin, which vary with B as depicted in. Fig. 1b. Equation (2) 

Dynamic nuclear polarization at 9 T using a novel 250 GHz

by VS Bajaj 2003 Cited by 277 In this communication, we report enhancements of nuclear spin polarization by These are the highest frequency DNP experiments performed to date and indicate that this is due to the high microwave power output of the 250 GHz gyrotron 


hyperfine coupling of the electronic spin to the nuclear spin I We use Hcf to represent needed frequencies are usually in the microwave region, 1-10 GHz for 

Polarization of the large COMPASS 14NH3 target - IOPscience

by J Koivuniemi 2009 Cited by 13 polarized through paramagnetic centers using microwave frequencies that are slightly higher proton nuclear magnetic resonance (NMR) frequency 106 MHz.

Microstrip Resonators for Microwave Spectroscopy of

A perpendicular oscillating magnetic field is absorbed strongly when its frequency is at resonance. In. FMR (or ESR), the analogy of nuclear spin is the magnetic 

Study of diamond film by dynamic nuclear polarization

with microwaves at or near electron spin resonance Larmor frequency of carbon center free radicals. No NMR signal for sp 2 hybridized carbons could be 

History of Atomic Clocks - Nvlpubs.​nist.​gov

by NF Ramsey 1983 Cited by 75 Key words: accuracy; atomic beam; clocks; frequency; frequency stabilization; laser; magnetic resonance; maser; microwave absorption; molecular beam; optical 

Solid-State 1H Spin Polarimetry by 13CH3 Nuclear - MR

by SJ Elliott 2021 Lineshape polarimetry of solid-state nuclear magnetic resonance spectra is microwave frequency), with different 13C NMR lineshapes for 

Enhanced dynamic nuclear polarization via swept microwave

by A Ajoy 2018 Cited by 25 erated NMR spectroscopy and MRI imaging via significant magnetic resonance signal gains. We develop a technique of microwave frequency 

A simple low-loss broadband DNP probe at W-band - NSF-PAR

by ML Guy 2015 Cited by 6 Magnetic-field and microwave-frequency modulated DNP experiments have to excite the sample, and its coupling to the NMR RF coil.

Nuclear Magnetic Resonance (NMR) - MDPI

by MI Newton 2017 Cited by 5 The hybrid junction is a long-standing four-arm radio frequency and microwave component, designed such that a signal incident in any one arm 

Heating of Foods Studied by Magnetic Resonance Imaging

Examples include off- line microwave heating of chilled and frozen foods, thawing of short duration pulses of the correct radio frequency the orienta- tion of those All of the nuclear magnetic resonance parameters of the protons of water are 

PoS(SPIN2018)102 - Proceeding of science - SISSA

by JD Maxwell 2018 Cited by 2 Jefferson Lab's solid polarized targets rely on Nuclear Magnetic Resonance driven by microwave radiation of frequency close to the electron spin resonance.

ESR (Electron Spin Resonance) - UCI Physics and Astronomy

involved in NMR work are one the order of 20 MHz, the frequencies used in ESR the microwave frequency fixed, the magnetic field is varied until spin reso-.

Dielectric materials in magnetic resonance - Questions and

by AG WEBB 2011 Cited by 140 state nuclear magnetic resonance (NMR), human and animal magnetic resonance imaging (MRI), or elec- measured at microwave or radio frequencies. The.

Microwave Methods and Detection Techniques for Electron

by A Bechtold 2013 Cited by 1 Electron spin resonance (ESR) originated more than sixty years ago, when Zavoisky and the properties of materials at microwave frequencies. the corresponding nuclear magnetic resonance (NMR) phenomena. However 

Recent developments in MAS DNP-NMR of materials

by AGM Rankin 2019 Cited by 43 During the rotor period, when the microwave irradiation is resonant with one of the two unpaired electrons, i.e., its instantaneous EPR frequency is equal to the 

Chapter 8 Magnetic Resonance

9.3 Nuclear magnetic resonance. 9.4 Other Magnetic moment precesses at the Larmor precession frequency f. L. = B. 0. /2 Microwave cavity delivers b. 1.

Principlesof NuclearMagneticResonance

by JA Koutcher 1984 Cited by 28 resonance frequencies at 21,I00 G. Not all nuclei give rise to an NMR signal. Both pro tons and neutrons have the property ofspinв€ the proton and neutron 

LETTERS TO NATURE Optical detection of magnetic

by J Wrachtrup 1993 Cited by 363 Goldman, M. Spin Temperature and Nuclear Magnetic Resonance in Solids (​Oxford Univ. Press, lifetimes, irradiation at a resonant microwave frequency will​.

Nuclear Magnetic Resonance Spectroscopy - Indian Academy

by S Das Cited by 5 Introduction. Nuclear magnetic resonance in condensed matter was discov- 5x1014 Hz. Microwave cookers operate at frequencies of the order of 109 Hz and​ 

Nuclear magnetic resonance - ACS Publications

radio-frequency or microwave region. Two other techniques phenomenologically related to NMR are electronic paramagnetic resonance and nuclear quad-.

Frequency-Swept Microwave Pulses for Electron Spin

by A Doll 2016 Cited by 4 In nuclear magnetic resonance at radio frequencies, on the contrary, frequency-​swept pulses had already become well established and widely 

Magnetic Resonance Imaging of DNP - OSTI.GOV

by FA Perras 2016 Cited by 9 years as a method for enhancing nuclear magnetic resonance (NMR) lines. paramagnetic resonance (EPR) frequency in order to transfer their much greater Simulations of the microwave propagation in the stator of a DNP-MAS probe.

Characterization of Frequency-Chirped Dynamic Nuclear

24 Jan 2020 enhance the typically poor sensitivity of nuclear magnetic resonance (NMR) by incident microwave frequency through the electron resonance 

Chapter 2 Loop-Gap Resonators

by GA Rinard Cited by 31 Over the years, quite a number of resonant and traveling-wave microwave and RF 9-10 GHz) as the normal frequency for EPR studies, the resonant cavity, NMR, and the publication in 1981-82 of the loop-gap resonator for EPR.

Microwave temperature-jump nuclear magnetic resonance

by M Kawakami 1998 Cited by 18 Both the microwave pulses and the radio-frequency pulses are gated by a pulse programmer of the NMR spectrometer to form a desired temperature-jump pulse​ 

Electro-mechano-optical detection of nuclear magnetic

by K Takeda 2018 Cited by 16 Signal reception of nuclear magnetic resonance (NMR) usually relies on Here, we report up-conversion of a radio-frequency NMR signal to an optical In the coupling between a microwave cavity and an ensemble electron 


by HC Longuet-Higgins 1955 (2) the absorption of microwave power by ionized gases, particularly flames ;. (3) paramagnetic resonance spectroscopy ;. (4) nuclear magnetic resonance 

Pulsed EPR

frequency, high power microwave pulse is applied at a constant magnetic ​Spin Dynamics: Basics of Nuclear Magnetic Resonance , M.H. Levitt, John Wiley &.

Microwave Beam Power Control and NMR Frequency Lock for

Microwave Beam Power Control and. NMR Frequency Lock for Dynamic Nuclear Polariza on. Donovan Kelley, Bianca Trociewitz, William Brey, Thierry Dubroca.