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[en] Frequency oscillations are reported in the time-resolved ESR spectra from radicals produced by flash photolysis and shown to be consistent with theoretical predictions. They are manifest as additional peaks in the ESR spectra obtained at short times after the flash and could easily be misinterpreted as due to hyperfine coupling. Methods for their suppression are suggested. Resolution limitation at periods <= μs after the flash is also discussed. (orig.)
Journal
Chemical Physics Letters; ISSN 0009-2614; 
; v. 77(1); p. 127-130
; v. 77(1); p. 127-130
[en] The basic principles of NMR ad NMR imaging are explained. Contrast devices in NMR images like spin-echo with enhanced T2 and partial saturation images with enhanced T1 contrast, are treated briefly. Techniques for improving image quality, spatial resolution and decreasing measuring time are discussed briefly. 6 refs.; 9 figs
Source
Wamsteker, K. (Mariastichting, Haarlem (Netherlands)); Jonas, U. (Rijksuniversiteit Leiden (Netherlands). Academisch Ziekenhuis); Veen, G. van der; Waes, P.F.G.M. van (Rijksuniversiteit Utrecht (Netherlands). Academisch Ziekenhuis) (eds.); International Congress Series; no. 747; 849 p; ISBN 0-444-80961-9; ; 1987; p. 117-123; Excerpta Medica; Amsterdam (Netherlands); DOCUMED Europe '87, 1. European conference on the applications of imaging and visual documentation in medicine; Amsterdam (Netherlands); 24-27 May 1987; Contains previously published material.
; 1987; p. 117-123; Excerpta Medica; Amsterdam (Netherlands); DOCUMED Europe '87, 1. European conference on the applications of imaging and visual documentation in medicine; Amsterdam (Netherlands); 24-27 May 1987; Contains previously published material.
[en] The basic principles that must be known to interpret NMR images, are exposed. After an analysis of the fundamental parameters (T1 and T2 relaxation time particularly), the main elements necessary to analyse a Spin Echo image are presented
[fr]
Nous exposons les principes de base indispensables a connaitre pour interpreter un document en IRM (Imagerie par Resonance Magnetique). Apres avoir analyse les parametres fondamentaux (temps de relaxation T1 et T2 en particulier), nous presentons les principales notions qui permettent de lire une image en Echo de SpinJournal
[en] The author traces the encounter of μSR physicists with the Kubo-Toyabe theory and the subsequent development of zero-field μSR by mutual communication between experiment and theory
Journal
[en] The massless field perturbations of the accelerating Minkowski and Schwarzschild spacetimes are studied. The results are extended to the propagation of the Proca field in Rindler spacetime. We examine critically the possibility of existence of a general spin-acceleration coupling in complete analogy with the well-known spin-rotation coupling. We argue that such a direct coupling between spin and linear acceleration does not exist
Journal
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