𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Properties of the HYSCORE Spin Echo Signal

✍ Scribed by A.V. Astashkin; A.M. Raitsimring

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
140 KB
Volume
148
Category
Article
ISSN
1090-7807

No coin nor oath required. For personal study only.

✦ Synopsis

In hyperfine sublevel correlation spectroscopy (HYSCORE), the finite duration of the microwave pulses leads to an incomplete inversion of the electron spin magnetization by the third pulse, which results in a significant admixture of stimulated ESEEM to HYSCORE ESEEM. This virtually unavoidable contribution of stimulated ESEEM seriously hampers the analysis of the modulation amplitudes in HYSCORE. In this work, we analyze the properties of the spin echo signals contributing to the composite HYSCORE signal. Based on this analysis, we propose the strategies of HYSCORE data acquisition and processing that allow one to practically eliminate the contribution of the stimulated echo and make the HYSCORE ESEEM analyzable in quantitative terms.

πŸ“œ SIMILAR VOLUMES

The Spatial Dependence of Spin-Echo Sign
The Spatial Dependence of Spin-Echo Signals
✍ Richard P.O. Jones; Gareth A. Morris; John C. Waterton πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 254 KB

The signals in NMR spin echoes which are refocused by 90 degrees pulses are spatially modulated. The spatial modulation is not normally observed in images or profiles obtained using Hahn or stimulated echoes, but may cause errors if the sample structure varies on the distance scale of the modulation

Analysis of signal intensities in electr
Analysis of signal intensities in electron spin echo envelope modulation spectroscopy
✍ H. Barkhuijsen; R. De Beer; D. Van Ormondt πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 English βš– 411 KB

Unlike LNDOR, electron spin echo envelope modulation (ESEEM) spectroscopy enables one to interpret the signal intensity without knowledge of relaxation processes. The technique is put to the test through analysis of the signal from 3gK in the fifth shell around the F-centre in a single crystal of KC

Fast spin-echo characteristics of visual
Fast spin-echo characteristics of visual stimulation-induced signal changes in the human brain
✍ Jia-Hong Gao; Jinhu Xiong; Jinqi Li; Joseph Schiff; John Roby; Jack L. Lancaster πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 725 KB

## Abstract A fast spin‐echo (FSE) technique used in a conventional MR imaging scanner has been successfully developed for obtaining functional MR images with high spatial resolution and multiple slices. Our preliminary visual stimulation studies using the FSE technique show that the nuclear MR sig