NUCLEAR MAGNETIC MOMENT OF SCANDIUM OF MASS 45

1951 ◽  
Vol 29 (6) ◽  
pp. 463-469 ◽  
Author(s):  
D. M. Hunten
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Magnetic Moment ◽  
Large Error ◽  
Nuclear Magnetic Moment ◽  
Nuclear Magnetic

By the method of nuclear magnetic resonance, the magnetic moment of Sc45 (without diamagnetic correction) is found to be 4.74916 ± 0.00012. The correction is +0.00717 with unknown and possibly large error. The equipment designed to search for magnetic resonance by varying the field of the magnet is described, with special emphasis on the magnet current regulator.

THE MAGNETIC MOMENT OF INDIUM-115m

1962 ◽  
Vol 40 (8) ◽  
pp. 931-942 ◽  
Author(s):  
J. A. Cameron ◽  
H. J. King ◽  
H. K. Eastwood ◽  
R. G. Summers-Gill
Keyword(s):  
Magnetic Resonance ◽  
Hyperfine Interaction ◽  
Hyperfine Structure ◽  
Metastable State ◽  
Magnetic Moment ◽  
Atomic Beam ◽  
Electronic States ◽  
Nuclear Magnetic Moment ◽  
Hyperfine Anomaly ◽  
Nuclear Magnetic

The hyperfine structure of the 4.5-hour metastable state of indium-115 has been studied by the method of atomic beam magnetic resonance. The values found for the hyperfine interaction constants are −903.5 ± 1.1 and −95.973 ± 0.010 Mc/sec in the 2P1/2 and 2P3/2 electronic states respectively. Neglecting a possible hyperfine anomaly, these correspond to a nuclear magnetic moment for In115m of −0.24371 ± 0.00005 nuclear magnetons. The construction of the atomic beam apparatus, recently completed at McMaster University, is also described.

The nuclear magnetic moment of indium-117m

1968 ◽  
Vol 46 (3) ◽  
pp. 177-181 ◽  
Author(s):  
A. R. Mufti ◽  
J. A. Cameron ◽  
J. C. Waddington ◽  
R. G. Summers-Gill
Keyword(s):  
Magnetic Resonance ◽  
Hyperfine Structure ◽  
Magnetic Moment ◽  
Electronic States ◽  
Dipole Interaction ◽  
Nuclear Magnetic Moment ◽  
Magnetic Dipole Interaction ◽  
Neutron Pair ◽  
Atomic Magnetic Resonance ◽  
Nuclear Magnetic

The hyperfine structure of 1.9-hour 117mIn has been investigated using atomic magnetic resonance. In the 2P1/2 and 2P3/2 electronic states, the magnetic dipole interaction constants are[Formula: see text]If the possibility of a hyperfine anomaly is neglected, the nuclear magnetic moment of 117mIn is −0.251 46 ± 0.000 03 nuclear magnetons. Thus the nucleus follows the trend shown by other 2p1/2 proton nuclei, namely that the addition of a neutron pair always reduces the deviation from the Schmidt value.

Measurement of the magnetic moment of 33Cl using on-line beta-nuclear magnetic resonance

1986 ◽  
Vol 177 (3-4) ◽  
pp. 293-298 ◽  
Author(s):  
W.F. Rogers ◽  
D.L. Clark ◽  
S.B. Dutta ◽  
A.G. Martin
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Magnetic Moment ◽  
On Line ◽  
Nuclear Magnetic

Investigation of the nuclear magnetic resonance spectra of potassium ions in aqueous solutions and estimation of the magnetic moment of the nucleus 39K

2021 ◽  
pp. 3-8
Author(s):  
Yuryi I. Neronov ◽  
Anton N. Pronin
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Magnetic Moment ◽  
Potassium Ions ◽  
Potassium Salts ◽  
Nuclear Magnetic Resonance Spectra ◽  
Resonance Frequencies ◽  
Living Tissues ◽  
Nmr Signals ◽  
Nuclear Magnetic

The problem of increasing the accuracy of determining the magnetic moment of the potassium 39K nucleus, which is used in studies of the norm and pathology of living tissues by nuclear magnetic resonance methods, is considered. The paper presents experimental results for determining the resonance frequency ratio of water protons and 39K nuclei for KCl and KNO3 solutions at concentrations from 0.5 to 2 mol/kg of water. NMR signals from water protons and potassium nuclei were recorded simultaneously, which minimizes random and systematic errors in determining the ratio of the resonance frequencies to units of the eighth sign. When extrapolating the content of potassium salts in water to zero concentrations for single ions in water, it was determined 21.4300226(10). Using the known data for the magnetic moment of the proton and the data for proton shielding in water, we obtained 0.390962111(18). Shielding of potassium ions in water was previously calculated in the work of Antisera and others. When using these data on the shielding of potassium ions in water, the magnetic moment of the potassium core was obtained 0.391471(8). The comparison of the new result for μ(39K) with the data of previous works is discussed.

An emerging technology: Nuclear magnetic resonance microscopy

1988 ◽  
Vol 46 ◽  
pp. 1000-1001
Author(s):  
M.J. Hennessy ◽  
E. Kwok
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Relaxation Times ◽  
Basic Research ◽  
Local Environment ◽  
Magnetic Resonance Images ◽  
Nmr Microscopy ◽  
Mri Scans ◽  
Temperature Relaxation ◽  
Nuclear Magnetic

Much progress in nuclear magnetic resonance microscope has been made in the last few years as a result of improved instrumentation and techniques being made available through basic research in magnetic resonance imaging (MRI) technologies for medicine. Nuclear magnetic resonance (NMR) was first observed in the hydrogen nucleus in water by Bloch, Purcell and Pound over 40 years ago. Today, in medicine, virtually all commercial MRI scans are made of water bound in tissue. This is also true for NMR microscopy, which has focussed mainly on biological applications. The reason water is the favored molecule for NMR is because water is,the most abundant molecule in biology. It is also the most NMR sensitive having the largest nuclear magnetic moment and having reasonable room temperature relaxation times (from 10 ms to 3 sec). The contrast seen in magnetic resonance images is due mostly to distribution of water relaxation times in sample which are extremely sensitive to the local environment.

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