Yw. Kim et al., CRYOGENIC PROBE WITH LOW-LOSS TRANSMISSION-LINE FOR NUCLEAR-MAGNETIC-RESONANCE, Journal of magnetic resonance. Series A, 116(2), 1995, pp. 139-144
In the design and construction of NMR probes, it is frequently useful
to have the tuning elements remote from the NMR coil and sample space,
In such cases, a transmission line is an integral part of the resonan
ce circuit. The characteristics of transmission lines are considered a
nd a design for a low-loss transmission line probe is given, The imped
ance transformation characteristics of low-loss transmission lines are
used in several cryogenic probes including singly and doubly tuned pr
obes, Although a low-loss transmission line improves the efficiency of
the probe, it may not be the dominant factor in maximizing energy tra
nsfer to the NMR coil. (C) 1995 Academic Press, Inc.