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Illustrating NMR cross-polarization (CP) with a microcomputer

✍ Scribed by Olivieri, Alejandro C.

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 218 KB
Volume: 10
Category: Article
ISSN: 1043-7347
DOI: 10.1002/(sici)1099-0534(1998)10:6<343::aid-cmr2>3.0.co;2-x

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✦ Synopsis

As a continuation of previous works, QuickBasic computer programs have been developed for the solution of the equations describing the transfer of polarization in a system of coupled spins, when spin-lock conditions are applied. The transfer is considered to take place through a simple model of dipolar spin-spin interactions. The presence of a randomly changing surrounding is modeled by the random number generator of a microcomputer. The discussed examples allow one to understand the effects of cross-polarization as a function of the correlation time , and to introduce the concept of spin temperature.

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