Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1984-10-10
1987-01-27
Levy, Stewart J.
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324319, 336100, 336198, G01V 300
Patent
active
046396721
ABSTRACT:
Inside the gradient coils in the magnet system of a nuclear magnetic resonance apparatus there is arranged a sleeve which forms a noise-absorbing shield between the gradient coils and the measurement space. The shield is preferably formed by an evacuated space between the sleeve and a support for the gradient coils. This space is then provided with elastic vacuum seals at its axial ends.
REFERENCES:
patent: 1699292 (1929-01-01), Hess
patent: 2182820 (1939-12-01), Pisarev
patent: 2221670 (1940-11-01), Cooper
patent: 2751564 (1956-06-01), Marsh
patent: 2827616 (1958-03-01), Manning
patent: 4456881 (1984-06-01), Compton
patent: 4456882 (1984-06-01), Doty
patent: 4490675 (1984-12-01), Knuettel et al.
Kwon John
Levy Stewart J.
Mayer Robert T.
Tamoshunas Algy
U.S. Philips Corporation
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