Illustrating rotating-frame ( T 1 r ) NMR relaxation with a microcomputer

Abstract

This paper is a continuation of previous works, in which QuickBasic computer programs are used to solve equations that describe the loss of quantum coherence in a two-state spin system, in the present case spin-locking conditions are applied. The coherence is considered to be lost by interaction with a randomly changing surrounding, modeled by the random-number generator of a microcomputer. The examples illustrate the behavior of rotating-frame relaxation time (T1ρ) as a function of correlation time (τ0). ©1998 John Wiley & Sons, Inc. Concepts Magn Reson 10: 157–166, 1998