A Precise Determination of the Proton Magnetic Moment in Bohr Magnetons

Gardner, J. H.; Purcell, Edward M.

doi:10.1103/physrev.76.1262.2

Cited by 81 publications

(11 citation statements)

References 7 publications

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“…One of the goals of this work is to test how the different exchange functionals impact the performance of the seven DFT methods in evaluating chemical shifts of the highly correlated aromatic 2-HADNT. In concept, electronic environments of nuclei in chemical structure determine nuclear chemical shifts or nuclear resonance frequencies [40]. In fact, C-13 chemical shift was suggested to be linearly proportional to electron density.…”

Section: Introductionmentioning

confidence: 99%

Benchmarking quantum mechanical calculations with experimental NMR chemical shifts of 2-HADNT

Liu

Junk

Liu

et al. 2015

Journal of Molecular Structure

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Section: Introductionmentioning

confidence: 99%

Benchmarking quantum mechanical calculations with experimental NMR chemical shifts of 2-HADNT

Liu

Junk

Liu

et al. 2015

Journal of Molecular Structure

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“…Both the Harvard and the Stanford group approached their experiments as contributions to fundamental physics, and in particular to the precise measurement of nuclear magnetic moments, especially that of hydrogen and its isotopes-for which purpose it was indeed immediately used (Arnold and Roberts, 1947;Bloch, Nicodemus, and Staub, 1948;Gardner and Purcell, 1949). Regardless, however, of the motives and interests of its originators, the NMR technique was quickly "turned around" to give quantitative measures of the magnetic fields, and hence the physical and chemical environment, in which the precessing nuclei are situated (Purcell, 1948;1952, p. 225;Rigden, 1986;Teichmann and Szymborski, 1992, pp.…”

Section: Relaxation Effects In Nuclearmentioning

confidence: 99%

"Swords into ploughshares": Breaking new ground with radar hardware and technique in physical research after World War II

Forman

1995

Rev. Mod. Phys.

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A survey is offered of applications to fundamental physical research, in the years immediately following World War II, of the instrumentalities developed for radar during that war. Attention is given to radar astronomy and radio astronomy, linear and cyclical accelerators, microwave spectroscopy, molecular beams, nuclear magnetic resonance, electron paramagnetic and ferromagnetic resonance, measurements of resistivity at high frequencies in metals and of second sound in helium II, and to the concepts of information and signal-to-noise ratio as basic to the design and analysis of experiments. In conjunction with this survey, consideration is given to the autonomy of physics as a knowledge-producing enterprise, framed as a question of continuity in research directions. As that question implies a baseline, the survey of postwar applications is preceded by a survey of those prewar directions of physical research requiring the highest available radio frequencies. Some 500 references are given.

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“…Gardner and Purcell 15 have just completed a measurement of the ratio of the precession frequency of the proton oo=ypBo to the cyclotron frequency a) e =eBo/m of a free electron in the same magnetic field. After making the same diamagnetic correction they give for the ratio co/w e =(1.52100±0.00002)XlO-3 .…”

Section: Comparison With Other Measurementsmentioning

confidence: 99%