A Preamplifier System for Water-Cooled Ultra-High Field NMR Spectrometers

Chinese Journal of Magnetic Resonance

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A Preamplifier System for Water-Cooled Ultra-High Field NMR Spectrometers

ZHU Tian-xiong^1,2，LIU Zao¹，BAO Qing-jia¹，LIU Yang¹，LI Zheng-gang¹，LIU Chao-yang^1*

1. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic Resonance (Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences), Wuhan 430071, China;2. University of the Chinese Academy of Sciences, Beijing 100049, China

Received:2013-05-06 Revised:2013-05-14 Online:2014-06-05 Published:2014-06-05
About author:*Corresponding author：LIU Chao-yang, Tel: 027-87198790, E-mail：chyliu@wipm.ac.cn.
Supported by:
国家重大科学仪器设备开发专项资助项目(2011YQ120035).

Abstract

Abstract:

This paper introduces the design and implementation of a preamplifier system for water-cooled ultra-high field NMR spectrometers. The system consists of a controller, a high-band low noise amplifier, a high-band mixer, a broadband low noise amplifier and a broadband mixer. The system was shown to be capable of flexible and fast switching between the transmitter mode and receiver mode, and have low noise figure and large receiving range.

Key words: solid state NMR, spectrometers, water-cooling system, preamplifier, low noise amplifier

CLC Number:

O482.53

References

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A Preamplifier System for Water-Cooled Ultra-High Field NMR Spectrometers

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