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Parameterized description of NMR signal reception systems. Part II: S/N of NMR signal reception systems

✍ Scribed by Cho, Shin-Il ;Sullivan, Neil S.

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 749 KB
Volume: 4
Category: Article
ISSN: 1043-7347
DOI: 10.1002/cmr.1820040402

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✦ Synopsis

Abstract

The mathematical tools that were developed in Part I are used to show quantitatively how the signal‐to‐noise ratio and the ringing time depend on Q factors, and thus how overall performance can be improved. The noise factor of a model preamplifier also is considered, and the minimum noise factor is derived in terms of the impedances of the probe and of the preamplifier. The optimization of the noise factor in realistic signal reception systems is discussed.

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