Results 51 to 60 of about 45,334 (191)

The FLUKA code and its use in hadron therapy [PDF]

, 2008
FLUKA is a multipurpose Monte Carto code describing transport and interaction with matter of a, large variety of particles over a wide energy range ill complex geometries. FLUKA is successfully applied ill several fields, including, but not only particle
Lukasik, G., Patera, V, L. Pinsky, Battistoni, G., Roesler, S., Broggi, F., G. Smirnov, Sarchiapone, L., D'Ambrosio, C., A. Mairani, M. Carboni, Gadioli, E., K. Lee, D'Ambrosio, C, A. Empl, Mairani, A., Trovati, S, Theis, C., Vlachoudis, V, S. Trovati, Campanella, M, MOSTACCI, Andrea, P. R. Sala, Ferrari, Al., Parodi, K., Parodi, K, V. Patera, Sala, P. R., Mauri, M, Sarchiapone, L, C. D’Ambrosio, Fasso, A., S. Rollet, D’Ambrosio, C., A.n. Ferrari, T. Wilson, R. Villari, Vinke, H, Battistoni, G, Pinsky, L, Ferrari, AI, Gadioli, E, C. D'Ambrosio, Lantz, M, Margiotta, A, Sioli, M, Pelliccioni, M., Empl, A, E. Gadioli, Carboni, M, Rollet, S, Sioli, M., A. N. Ferrari, Lantz, Mattias, Sommerer, F., Muraro, S, M. Lantz, Cerutti, F, Mostacci, A, Ferrari, A., Lantz, Mattias,, Lukasik, G, Lantz, M., Brugger, M, Vlachoudis, V., Sommerer, F, M. Brugger, Colleoni, P., S. Muraro, Wilson, T, Villari, R, Lee, K, M. Campanella, Villari, R., D\u27Ambrosio, C., SIOLI, MAXIMILIANO, M. Pelliccioni, F. Cerutti, Campanella, M., Mostacci, A., P. Colleoni, N. Zapp, Ranft, J., PATERA, Vincenzo, Empl, A., Rollet, S., Wilson, T., Smirnov, G, M. C. Morone, C. Theis, Smirnov, G., Mairani, A, S. Roesler, Zapp, N, Mauri, M., F. Broggi, Sala, PR, A. Fasso, G. Battistoni, Carboni, M., Margiotta, A., Stoli, M., Broggi, F, Morone, MC, Roesler, S, V. Vlachoudis, Al Ferrari, Muraro, S., G. Lukasik, MORONE, MARIA CRISTINA, Colleoni, P, M. Mauri, Ferrari, A, K. Parodi, Ranft, J, Patera, V., J. Ranft, M. Stoli, A. Margiotta, Zapp, N., Fassò, A, F. Sommerer, H. Vinke, Trovati, S., A.l. Ferrari, Pinsky, L., L. Sarchiapone, Brugger, M., Ferrari, An., Pelliccioni, M, Vinke, H., A. Mostacci, Theis, C, Lee, K., Cerutti, F., Morone, M. C., MARGIOTTA, ANNARITA   +136 more
core   +1 more source

Potassium isotopic compositions and exposure ages of evolved and silica‐rich achondrites

Meteoritics &Planetary Science, EarlyView.
Abstract Some of the oldest igneous rocks in the Solar System include evolved and silica‐rich achondrites that originate from parent bodies less than 1000 km in diameter, referred to as planetesimals. While Earth was initially in a molten state and required continental crust formation and plate tectonics to generate andesite bulk compositions, evolved ...
Z. Vaci, Z. Tian, P. Koefoed, M. Habermann, M. Humayun, K. Ziegler, H. Busemann, D. Krietsch, J. M. D. Day, K. Wang   +9 more
wiley   +1 more source

Empirically Estimated Electron Lifetimes in the Earth's Radiation Belts: Van Allen Probe Observations

Geophysical Research Letters, 2020
We use measurements from NASA's Van Allen Probes to calculate the decay time constants for electrons over a wide range of energies (30 keV to 4 MeV) and L values ( L = 1.3–6.0) in the Earth's radiation belts.
S. G. Claudepierre, Q. Ma, J. Bortnik, T. P. O'Brien, J. F. Fennell, J. B. Blake   +5 more
doaj   +1 more source

The 40K‐K dating system: 1. Improving data interpretation using new model calculations

Meteoritics &Planetary Science, EarlyView.
Abstract The 40K‐K cosmic‐ray exposure (CRE) dating system offers a promising method for determining exposure ages of iron meteorites by combining the radioactive cosmogenic 40K with the stable cosmogenic isotopes 39K and 41K. However, earlier applications relied on semi‐empirical production models and inconsistent analytical data sets, limiting their ...
Farshid Nozarian, Suzette Timmerman, Ingo Leya   +2 more
wiley   +1 more source

Observation of pulsating aurora signatures in cosmic noise absorption data [PDF]

, 2017
This study investigates the contribution of energetic (E > 30 keV) particle precipitation during a pulsating aurora event over Kilpisjärvi (L = 6.2) on 26 February 2014.
Miyoshi, Y. (Y.), Whiter, D., Grandin, M. (M.), M. Grandin, Grandin, M., McKay, D., Whiter, D. (D.), Partamies, Noora, Partamies, N., Partamies, N. (N.), Kozlovsky, Alexander, McKay, D. (D.), Mckay, Derek, D. McKay, N. Partamies, Whiter, Daniel, Grandin, Maxime, Kero, A. (A.), Miyoshi, Y., A. Kero, D. Whiter, Y. Miyoshi, A. Kozlovsky, Kozlovsky, A. (A.), Kero, Antti, Kero, A., Kozlovsky, A.   +26 more
core   +2 more sources

Lipid Biomarkers Quantify Holocene Summer Temperature and Ice Cap Sensitivity in Icelandic Lakes

Geophysical Research Letters, 2020
Although recent research has made significant advances in characterizing Iceland's Holocene environmental history, the region still lacks reliable and continuous records of corresponding paleotemperature.
David J. Harning, Lorelei Curtin, Áslaug Geirsdóttir, William J. D'Andrea, Gifford H. Miller, Julio Sepúlveda   +5 more
doaj   +1 more source

Oxygen isotope variability in the IIIAB iron meteorites and their relationship to main group pallasites

Meteoritics &Planetary Science, EarlyView.
Abstract The light element distribution in planetary cores and the processes driving core evolution in rocky planets are poorly understood. Magmatic iron meteorites are samples from the cores of ancient embryonic planetesimals and therefore provide a window into the processes governing core evolution. We performed high precision oxygen isotope analyses
R. J. Windmill, I. A. Franchi, X. Zhao, R. C. Greenwood, M. Anand   +4 more
wiley   +1 more source

Search for Cosmic-Microwave-Background anisotropies at degree angular scales: The ARGO 1993 experiment [PDF]

, 1993
We describe a balloon-borne telescope, optimized for observations of the Cosmic Microwave Background (CMB) anisotropies in the mm wavelength region, at angular scales around 10.
Martinis, L., Scaramuzzi, F., DE BERNARDIS, Paolo, Palumbo, P., DE PETRIS, Marco, Aquilini, E., Natale, V., Gervasi, M., MASI, Silvia, Boscaleri, A.   +9 more
core   +1 more source

Two Decades of Ocean Acidification in the Surface Waters of the Beaufort Gyre, Arctic Ocean: Effects of Sea Ice Melt and Retreat From 1997–2016

Geophysical Research Letters, 2020
Anthropogenic CO2 uptake drives ocean acidification and so decreases the calcium carbonate (CaCO3) saturation state (Ω). Undersaturation of surface water with respect to aragonite‐type CaCO3 was first reported for 2008 in the Canada Basin, preceding ...
Y. Zhang, M. Yamamoto‐Kawai, W.J. Williams   +2 more
doaj   +1 more source

The first discovery of a shocked, metasomatised CV3 chondrule‐fragment in a (Al,Cu)‐bearing micrometeorite

Meteoritics &Planetary Science, EarlyView.
Abstract We report the discovery of the second (Al,Cu)‐alloy–bearing micrometeorite, FB‐A2, recovered from Mount Gariglione (southern Italy), representing the sixth such occurrence worldwide. Although chondritic in nature, FB‐A2 differs markedly from previously described microspherules.
Giovanna Agrosì, Paola Manzari, Daniela Mele, Johan Villeneuve, Tiziano Catelani, Mattew J. Genge, Luca Bindi   +6 more
wiley   +1 more source