34 research outputs found
The Helioseismic and Magnetic Imager (HMI) Investigation for the Solar Dynamics Observatory (SDO)
Get PDFTwist mode in atomic Fermi gases
Get PDFThe quantum-kinetic energy of a finite number of trapped fermionic atoms provides a restoring force for shear motion due to a distortion of the momentum distribution. In analogy to the twist mode of nuclear physics, it is proposed that counter rotating the upper and lower hemisphere of a spherical atomic cloud yields a finite-frequency mode closely related to transverse zero sound waves in bulk Fermi liquids
Efeitos do thidiazuron e do ácido giberélico nas características dos cachos e bagas de uvas 'niagara rosada' na região de Jundiaí-SP
No full textEfeitos de reguladores vegetais na qualidade de uvas 'Niagara Rosada' na região Noroeste do Estado de São Paulo
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Mathematical modelling of the heat and moisture diffusion in a dairy powder particle with crystallisation phase change within the particle matrix
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Nuclear targets, recoil ion catchers and reaction chambers
No full textThe main features of nuclear targets, recoil ion catchers and reaction chambers used in nuclear spectroscopic investigations involving in-beam multi-e-gamma spectrometers are discussed. The relative importance of the F-ray background due to the accelerated ion-target and the recoil-ion-target interaction is estimated. Its impact on the prompt low-energy electron measurements is stressed. Finally a few general features of the interplay between accelerated ion beams, targets and recoil ion catchers particularly relevant for these measurements are broadly discussed and illustrated with typical examples of in-beam e-gamma studies. (C) 1998 Elsevier Science B.V. All rights reserved
