Thermal contraction of a system of glassfibre and epoxy resin between 300 and 77 K

✍ Scribed by A. Acton; G.L. Hosker; K. Kellner

• Book ID: 103052279
• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 183 KB
• Volume: 13
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(73)90246-4

✦ Synopsis

side bands several fold and do not have an appreciable effect on either its resolution or on the level of the first side bands.

All the compensators used are wound in the round and longitudinal channels of a cylinder which is a component part of the nmr probe. The actual distances between the compensator coils depend on the cylinder radius and are found by multiplying it by the values of/3 and 7 for each gradient. In the present case the diameter of the winding is determined by the diameter of the warm gap of the cryostat which is 23 ram.

By using compensators for the axial field gradients 1 and the compensators for the transverse field gradients described above, a resolution of better than 5 x 10 .9 (1 Hz) can be achieved in an nmr spectrometer with a superconducting magnet using a standard 5 mm ampoule, for a side band level of about 1% of the main signal resulting from rotation.