Results 21 to 30 of about 230,400 (298)

New views of solar energetic particles from the Advanced Composition Explorer [PDF]

, 2000
Since its launch in August 1997, the Advanced Composition Explorer has been measuring the elemental, isotopic, and ionic charge-state composition of solar energetic particles with three new, high-resolution instruments (SEPICA, SIS, and ULEIS).
Mewaldt, R. A.
core   +1 more source

Energetic particles emitted from energetic nuclear reactions [PDF]

Zeitschrift für Physik A Atoms and Nuclei, 1982
Protons and pions emitted with extreme momenta from energetic proton and heavy ion induced nuclear reactions are analysed in terms of two simple phenomenological models: the nuclear phase space model and a simplified multiple collision model. The systematic analysis of the observed spectra over many orders of magnitude for a variety of projectile and ...
Alex H. Blin, Steffen Bohrmann, Jörn Knoll   +2 more
openaire   +1 more source

The Isotopic Composition of Solar Energetic Particles [PDF]

, 2000
Since the launch of ACE in August 1997, the Solar Isotope Spectrometer (SIS) has observed 11 large solar particle events in which elemental and isotopic composition was determined over a large energy range. The composition of these events has raised many
Christian, E. R., Cohen, C. M. S., Cummings, A. C., Leske, R. A., Mewaldt, R. A., Slocum, P. L., Stone, E. C., von Rosenvinge, T. T., Wiedenbeck, M. E.   +8 more
core   +1 more source

Current energetic particle sensors [PDF]

Journal of Geophysical Research: Space Physics, 2016
AbstractSeveral energetic particle sensors designed to make measurements in the current decade are described and their technology and capabilities discussed and demonstrated. Most of these instruments are already on orbit or approaching launch. These include the Magnetic Electron Ion Spectrometers (MagEIS) and the Relativistic Electron Proton Telescope
J. F. Fennell, J. B. Blake, S. Claudepierre, J. Mazur, S. Kanekal, P. O'Brien, D. Baker, W. Crain, D. Mabry, J. Clemmons   +9 more
openaire   +1 more source

A Perspective on Solar Energetic Particles

Frontiers in Astronomy and Space Sciences, 2022
The author has been fortunate to observe and participate in the rise of the field of solar energetic particles (SEPs), from the early abundance studies, to the contemporary paradigm of shock acceleration in large SEP events, and element abundance ...
Donald V. Reames
doaj   +1 more source

Cluster pair correlation function of simple fluids: energetic connectivity criteria [PDF]

, 2006
We consider the clustering of Lennard-Jones particles by using an energetic connectivity criterion proposed long ago by T.L. Hill [J. Chem. Phys. 32, 617 (1955)] for the bond between pairs of particles.
Abtramowitz M., Allen M. P., Fernando Vericat, Gray C. G., Grest G. S., Guillermo J. Zarragoicoechea, Hansen J. P., Luis A. Pugnaloni, Morse P. M., Sahimi M.   +9 more
core   +3 more sources

Synthesis of 3-D coronal-solar wind energetic particle acceleration modules [PDF]

, 2014
1. Introduction Acute space radiation hazards pose one of the most serious risks to future human and robotic exploration. Large solar energetic particle (SEP) events are dangerous to astronauts and equipment.
Chandran, Benjamin D.G., Cooper, J. F., Desai, M., Downs, Cooper, Germaschewski, Kai K., Giacalone, Joe, Gorby, Matthew J., Isenberg, Philip A., Kasper, J. C., Korreck, K. E., Kozarev, K., Lee, Martin A., Linker, J. A., Lionello, Roberto, Lugaz, Noe E., MacNeice, Peter, Mikic, Z., Riley, P., Schwadron, Nathan A., Smith, Sonya S., Spence, Harlan E., Stevens, M. L., Torak, Tibor   +22 more
core   +2 more sources

The influence of nano-scale aluminum on the energetic potential of energetic materials: Theoretical and experimental observations [PDF]

Scientific Technical Review
Metal powders have been utilized for a long time in energetic materials to improve some specific performance. In recent years, metal particles in energetic materials have been reduced in size since smaller particles, particularly nano-sized, have highly ...
Krstović Mirjana, Bajić Danica, Timotijević Mladen, Nešić Jovica, Fidanovski Bojana   +4 more
doaj   +1 more source

Spatial structure of the plasma sheet boundary layer at distances greater than 180 R_E as derived from energetic particle measurements on GEOTAIL [PDF]

Annales Geophysicae, 1997
We have analyzed the onsets of energetic particle bursts detected by the ICS and STICS sensors of the EPIC instrument on board the GEOTAIL spacecraft in the deep magnetotail (i.e., at distances greater than 180 RE).
D. V. Sarafopoulos, E. T. Sarris, V. Angelopoulos, T. Yamamoto, S. Kokubun   +4 more
doaj   +1 more source

Yield Function of the DOSimetry TELescope Count and Dose Rates Aboard the International Space Station

Space Weather, 2021
The Earth is constantly hit by energetic particles originating from galactic sources. The flux of these particles is altered by the magnetized solar wind in the heliosphere and the Earth's magnetic field.
A. S. Caprotti, M. Brüdern, S. Burmeister, B. Heber, K. Herbst   +4 more
doaj   +1 more source