Results 61 to 70 of about 255,574 (289)

The shape of the cosmic ray proton spectrum [PDF]

Astroparticle physics, 2019
Recent observations of cosmic ray protons in the energy range $10^2$--$10^5$~GeV have revealed that the spectrum cannot be described by a simple power law.
P. Lipari, S. Vernetto
semanticscholar   +1 more source

Nonsolar astronomy with the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) [PDF]

, 2003
The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) is a NASA Small Explorer satellite designed to study hard x-ray and gamma-ray emission from solar flares. In addition, its high-resolution array of germanium detectors can see photons from
, , Alex Zehnder, Claudia Wigger, David M. Smith, Gordon J. Hurford, Kevin C. Hurley, Mark L. McConnell, Robert P. Lin, W. Hajdas, Wayne Coburn   +10 more
core   +2 more sources

Deterministic Detection of Single Ion Implantation

Advanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead, Lok Kan Wan, Maddison Coke, Janet Jacobs, Nicholas F. L. Collins, Mark C. Rosamond, Richard J. Curry   +6 more
wiley   +1 more source

Geant4 Simulations of a Scintillator Cosmic-Ray Detector

Applied Sciences
Reliable cosmic-ray measurements require a thorough understanding of the detector used. It is especially important when detectors are very simple like the scintillator detectors considered in this work, which provide only information about the amplitude ...
Jerzy Pryga, Krzysztof Wiesław Woźniak, Łukasz Bibrzycki, Piotr Homola, Sławomir Stuglik, Kévin Almeida Cheminant, Ophir Ruimi, Olaf Bar   +7 more
doaj   +1 more source

Understanding the Phase Reversals of Galactic Cosmic-Ray Anisotropies

The Astrophysical Journal, 2022
Energy spectra and anisotropies are very important probes of the origin of cosmic rays. Recent measurements show that complicated but very interesting structures exist at similar energies in both the spectra and energy-dependent anisotropies, indicating ...
Bing-Qiang Qiao, Qing Luo, Qiang Yuan, Yi-Qing Guo   +3 more
doaj   +1 more source

Ultrahigh-energy nuclei, photons, and magnetic fields

, 2010
Combined recent data from cosmic-ray detectors and gamma-ray detectors have produced some surprising insights regarding the sources of ultrahigh-energy cosmic rays (UHECRs), magnetic fields inside and outside the Milky Way, and the universal photon ...
Kusenko, Alexander
core   +1 more source

Prospects for radio detection of ultra-high energy cosmic rays and neutrinos [PDF]

, 2004
The origin and nature of the highest energy cosmic ray events is currently the subject of intense investigation by giant air shower arrays and fluorescent detectors. These particles reach energies well beyond what can be achieved in ground-based particle
Abbasi, Agnetta, Allan, Allan, Allan, Alvarez-Muñiz, Alvarez-Muñiz, Arons, Askar’yan, Askar’yan, Barker, Barwick, Bird, Bourdeau, Colgate, Dagkesamansky, de Gouvela Dal Pino, Engel, Falcke, Gorham, Gorham, Gorham, Gorham, Green, Greisen, H. Falcke, Hankins, Haswell, Hillas, Hough, Huege, Jackson, Jones, Kamata, Learned, Lehtinen, Linsley, Litwin, Medvedev, Mücke, Nagano, Olhoeft, P. Gorham, Pelletier, Protheroe, Protheroe, Protheroe, Protheroe, R.J. Protheroe, Saltzberg, Sorrell, Spencer, Stanev, Suprun, Takahashi, Takeda, Vernov, Wheeler, Yamamoto, Zas, Zatsepin   +60 more
core   +3 more sources

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

Advanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden, Carolien T. A Kuster, Amber van Broekhoven, Raphaela Allgayer, Luco Rutten, Rona Roverts, Marta Cerruti, Elena Macías‐Sánchez, Jan Hein Cornel, Salloua el Messaoudi, Anat Akiva, Nico Sommerdijk   +11 more
wiley   +1 more source

Impact of particles on the Planck HFI detectors: Ground-based measurements and physical interpretation [PDF]

, 2014
The Planck High Frequency Instrument (HFI) surveyed the sky continuously from August 2009 to January 2012. Its noise and sensitivity performance were excellent, but the rate of cosmic ray impacts on the HFI detectors was unexpectedly high.
Ade, P., Atik, Y., Benoit, A., Bock, J. J., Bréele, E., Camus, P., Catalano, A., Chabot, M., Charra, M., Coron, N., Coulais, A., Crill, B. P., Désert, F. -X., Fauvet, L., Giraud-Héraud, Y., Guillaudin, O., Holmes, W., Jones, W. C., Lamarre, J. -M., Macías-Pérez, J., Martinez, M., Miniussi, A., Monfardini, A., Pajot, F., Patanchon, G., Pelissier, A., Piat, M., Puget, J. -L., Renault, C., Rosset, C., Santos, D., Sauvé, A., Spencer, L. D., Sudiwala, R.   +33 more
core   +4 more sources

Passivation‐Induced Species Dynamics and Microstructural Evolution in Solid‐State Lithium–Sulfur Cathodes

Advanced Science, EarlyView.
The formation of insulating Li2S during discharge in solid‐state lithium–sulfur batteries passivate reaction sites and limits sulfur utilization. In this work, a microstructure‐resolved modeling framework coupling transport and reaction kinetics is developed to predict charge–discharge behavior and reveal particle‐scale species evolution and incomplete
Arpan K. Sharma, Bairav S. Vishnugopi, Elif Pınar Alsaç, Matthew T. McDowell, Partha P. Mukherjee   +4 more
wiley   +1 more source