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Sources of light particles in peripheral collisions
Physical Review C, 1991By studying light charged particles emitted in coincidence with projectile-like fragments, we probe heavy ion reaction mechanisms that result in the production of light particles in peripheral collisions. Triple coincidence {alpha}-{alpha}-{sup 12}C correlations in the reactions of 35 MeV/nucleon {sup 16}O with Ni conclusively identify previously known
, Gonthier +12 more
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Randomness as a Source of Massless Particles
1980It is well known that massless particles arise naturally from symmetry principles, e.g. Goldstone bosons, gauge fields, γ5 in-variance, …. In this talk I speculate that maybe there is a new unforeseen mechanism which could generate massless particles.
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Wave-particle interactions: A source for trapped particles
Radiophysics and Quantum Electronics, 1994For 20 years it has been assumed that whistler mode waves can only resonate with electrons above a characteristic energy E{sub C} = B{sup 2}/2{mu}{sub 0}N, the magnetic energy per particle. Since this energy is typically greater than 10 keV in the outer radiation belt, it has then been argued that auroral electrons at energies less than 10 keV could ...
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2015
In this section we consider the fate of energetic ions (1–100 keV) incident on a solid surface. The 10 ways in which ions can interact with a surface are illustrated in Fig. 8.1. An incoming ion can be backscattered by an atom or group of atoms in the bombarded sample (1).
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In this section we consider the fate of energetic ions (1–100 keV) incident on a solid surface. The 10 ways in which ions can interact with a surface are illustrated in Fig. 8.1. An incoming ion can be backscattered by an atom or group of atoms in the bombarded sample (1).
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The cusp as a source of magnetospheric particles
Journal of Atmospheric and Solar-Terrestrial Physics, 2012Abstract Observations made by a number of satellites have shown that plasma of solar wind/magnetosheath origin enters the high altitude polar cusp creating diamagnetic cavities of large dimensions. The Earth's dipole field can be excluded from this region in a turbulent manner with the magnitude of the field strength reaching close to 0 nT at times ...
T.A. Fritz +3 more
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Astrophysical Source Separation Using Particle Filters
2004In this work, we will confront the problem of source separation in the field of astrophysics, where the contributions of various Galactic and extra-Galactic components need to be separated from a set of observed noisy mixtures. Most of the previous work on the problem perform blind source separation, assume noiseless models, and in the few cases when ...
Mauro Costagli +2 more
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Particles and Particles Effects on the Energy Sources
2014All animate and inanimate beings are composed of atoms which are, in basic terms, formed by protons, electrons and neutrons. Recent scientific research shed light on this simple model and showed that the existence of subatomic particles which produce protons, electrons and neutrons.
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Relativistic Particle as Energy Source
2010 Asia-Pacific Power and Energy Engineering Conference, 2010Power is the rate at which energy is being used to do work. A negative sign of power indicates that it is an energy source. With this notion it is easy to explain photoelectric effect and nuclear reactions. Also, recent research indicates that speed of light is not a constant.
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The Standardization of Alpha-Particle Sources
1980The calibration of alpha-particle sources at the National Bureau of Standards (NBS) began about 1950 with the measurement of 2π alpha-particle-emission rates using a hemispherical gas-flow proportional counter. Today activities are also determined using defined-geometry counters with scintillation detectors and 4πα-γ coincidence counters.
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Associations between sources of particle number and mortality in four European cities
Environment International, 2021Aurelio Tobias +2 more
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