A fast recovery pulsed nuclear magnetic resonance sample probe using a delay line
作者:
I. J. Lowe,
M. Engelsberg,
期刊:
Review of Scientific Instruments
(AIP Available online 1974)
卷期:
Volume 45,
issue 5
页码: 631-639
ISSN:0034-6748
年代: 1974
DOI:10.1063/1.1686702
出版商: AIP
数据来源: AIP
摘要:
A sample probe for pulsed nuclear magnetic resonance that replaces the normal resonant circuit by a lumped parameter delay line is described. Theoretical analysis shows that the delay line probe has a signal‐to‐noise ratio and conversion efficiency of power into rotating magnetic field equivalent to a resonant circuit ofQ=(2&pgr;) (delay time) (Larmor frequency). However, the delay line probe has a much wider bandwidth, much shorter transient decay time, and faster recovery from the rf excitation pulse. Experimental results are included that demonstrate submicrosecond recovery times for the observation of the signal.
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