A HIGH-TEMPERATURE SUPERCONDUCTING RECEIVER FOR NUCLEAR-MAGNETIC-RESONANCE MICROSCOPY

被引：176

作者：

BLACK, RD

EARLY, TA

ROEMER, PB

MUELLER, OM

MOGROCAMPERO, A

TURNER, LG

JOHNSON, GA

机构：

[1] DUKE UNIV,DEPT RADIOL,DURHAM,NC 27710

[2] DUKE UNIV,DEPT PHYS,DURHAM,NC 27710

来源：

SCIENCE | 1993年 / 259卷 / 5096期

关键词：

D O I：

10.1126/science.8430331

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A high-temperature superconducting-receiver system for use in nuclear magnetic resonance (NMR) microscopy is described. The scaling behavior of sources of sample and receiver-coil noise is analyzed, and it is demonstrated that Johnson, or thermal, noise in the receiver coil is the factor that limits resolution. The behavior of superconductors in the environment of an NMR experiment is examined, and a prototypical system for imaging biological specimens is discussed. Preliminary spin-echo images are shown, and the ultimate limits of the signal-to-noise ratio of the probe are investigated.

引用

页码：793 / 795

页数：3

共 23 条

[1] A GENERALIZED FORMULATION OF DIFFUSION EFFECTS IN MU-M RESOLUTION NUCLEAR MAGNETIC-RESONANCE IMAGING [J].