Literature DB >> 29278827

A resistive Q-switch for low-field NMR systems.

J Z Zhen1, K T O'Neill1, E O Fridjonsson1, P L Stanwix1, M L Johns2.   

Abstract

An NMR Q-switch was designed and constructed specifically for use with low-field NMR apparatus. This featured a comparatively simple resistive damping design. It served to reduce the r.f. probe ring-down time, and hence reduced the signal acquisition delay from 25 ms to 9 ms, on an Earth's magnetic field NMR system. The advantage of this earlier acquisition was demonstrated for both an aqueous suspension of iron oxide particles and using an NMR flow meter.
Copyright © 2017 Elsevier Inc. All rights reserved.

Entities:  

Keywords:  Damping; Earth's field NMR; Flow meter; Low-field NMR; Q-switch; Ring-down

Year:  2017        PMID: 29278827     DOI: 10.1016/j.jmr.2017.12.006

Source DB:  PubMed          Journal:  J Magn Reson        ISSN: 1090-7807            Impact factor:   2.229


  1 in total

1.  Practical method for RF pulse distortion compensation using multiple square pulses for low-field MRI.

Authors:  Yonghyun Ha; Kartiga Selvaganesan; Baosong Wu; Kasey Hancock; Charles Rogers; Sajad Hosseinnezhadian; Gigi Galiana; R Todd Constable
Journal:  PLoS One       Date:  2022-09-16       Impact factor: 3.752

  1 in total

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