Varian A 60 nuclear magnetic resonance  spectrometer, c 1965.
3 3 c m
40cm
actual image size: 32cm x 25cm

Varian A 60 nuclear magnetic resonance spectrometer, c 1965.

Exton, David

© Science Museum / Science & Society Picture Library

Description

Nuclear magnetic resonance (NMR) spectrometers are used to analyse the composition of substances and their molecular structures. NMR works by 'interrogating' the atoms using radio waves of a defined frequency from a transmitter close to the specimen and detecting and decoding the returned transmisions. Varian's A-60, introduced in 1961, was the first NMR spectrometer designed for routine use. A stable, reproducible, user-friendly and affordable system, the A-60 could be operated in a chemistry laboratory by a chemist with little knowledge of the physics of NMR. It was used in over a thousand laboratories worldwide and they were often modified during their active lifetime, as shown by the non-standard box on top of the magnetic unit (right).
 

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Image Ref.

10327322
 

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