منابع مشابه
Electric field penetration effects in time - of - flight measurements
The field imperfections in the mass spectrometers were studied by means of two Plasma desorption time-of-flight mass spectrometers. The experiment was performed by investigating the influence of the field leakage due to the post acceleration on the measured values of the initial axial energy of secondary ions, in the presence of the grounded grids, which are usually employed to separate the fie...
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by International Business Machines Corporation. Copying in printed form for private use is permitted without payment of royalty provided that (1) each reproduction is done without alteration and (2) the Journal reference and IBM copyright notice are included on the first page. The title and abstract, but no other portions, of this paper may be copied or distributed royalty free without further ...
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Raman spectra of materials subject to strong electric field gradients, such as those present near a metal surface, can show significantly altered selection rules. We describe a new mechanism by which the field gradients can produce Raman-like lines. We develop a theoretical model for this "gradient-field Raman" effect, discuss selection rules, and compare to other mechanisms that produce Raman-...
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A traditional idea with respect to the interaction of electromagnetic fields and biologic systems is that specific effects can occur only when the incident energy is greater than the energy associated with a temperature that is characteristic of the biologic system (kT). The functioning of the visual system and the effect of ionizing radiation are examples of these interactions. For energies le...
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ژورنال
عنوان ژورنال: Ultrasonics
سال: 2010
ISSN: 0041-624X
DOI: 10.1016/j.ultras.2009.09.006