An anti-coincidence circuit for randomly delayed pulses
β Scribed by S. Rozenstein
- Publisher
- Elsevier Science
- Year
- 1960
- Weight
- 129 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0029-554X
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π SIMILAR VOLUMES
## Abstract An evolutionary algorithm has been used to design a family of shaped radiofrequency pulses giving uniform absorptionβmode excitation across a predetermined frequency band. By allowing a free precession interval before signal acquisition, time is left for field gradients to be switched a
In the recent years a considerable amount of mathematical work has been devoted to the study of reflected signals obtained by the propagation of pulses in randomly layered media. We refer to [M. Asch, W. Kohler, G. Papanicolaou, M. Postel and B. White, "Frequency content of randomly scattered signal