Results 61 to 70 of about 121,402 (277)

Observation of TeV Gamma Rays from the Crab Nebula with Milagro Using a New Background Rejection Technique [PDF]

, 2003
The recent advances in TeV gamma-ray astronomy are largely the result of the ability to differentiate between extensive air showers generated by gamma rays and hadronic cosmic rays.
A. Falcone, A. I. Mincer, A. J. Smith, A. Shoup, B. L. Dingus, B. Shen, C. M. Hoffman, D. A. Williams, D. Berley, D. E. Dorfan, D. G. Coyne, D. Noyes, E. Blaufuss, E. Hays, F. W. Samuelson, G. B. Yodh, G. Gisler, G. Sinnis, G. W. Sullivan, Hillas A. M., J. A. Goodman, J. Bussons, J. E. McEnery, J. M. Ryan, J. McCullough, K. Wang, L. A. Kelley, L. Fleysher, M. E. Wilson, M. F. Morales, M. M. Gonzalez, M. Schneider, M. Wascko, Nesterova N. M., O. T. Tumer, P. Nemethy, R. Atkins, R. Fleysher, R. S. Delay, R. S. Miller, R. W. Ellsworth, R. W. Laird, S. Westerhoff, T. DeYoung, T. J. Haines, W. Benbow, X. Xu   +46 more
core   +1 more source

Electron–Matter Interactions During Electron Beam Nanopatterning

Advanced Functional Materials, EarlyView.
This article reviews the electron–matter interactions important to nanopatterning with electron beam lithography (EBL). Electron–matter interactions, including secondary electron generation routes, polymer radiolysis, and electron beam induced charging, are discussed.
Camila Faccini de Lima, Prathiba Thamizhavel, Taylor J. Woehl   +2 more
wiley   +1 more source

Monte Carlo simulation of the cosmic muon charge ratio

Kuwait Journal of Science, 2021
The muonic component of air showers is sensitive to the mass and energy of the primary cosmic ray and is the most abundant component of charged particles arriving at the surface, and able to penetrate deeply underground.
Abd Al Karim Haj Ismail
doaj   +1 more source

Measurement of radio emission from extensive air showers

, 2009
A new promising development in astroparticle physics is to measure the radio emission from extensive air showers. The particles in the cascade emit synchrotron radiation (30 - 90 MHz) which is detected with arrays of dipole antennas.
Hoerandel, Joerg R.
core   +1 more source

Self‐Assembled Cobalt Oxide Nanobeads on the Conducting Van der Waals Semi‐Metal PtTe2 for Catalytic Heterostructure

Advanced Materials Interfaces, EarlyView.
Self‐assembled CoO nanobeads on the Van der Waals surface of PtTe2 were synthesized through simple thermal annealing utilizing the residual oxygen in the annealing chamber. In this study, the electrocatalytic effect for oxygen evolution reaction from CoO nanobeads on conducting PtTe2 was confirmed, elucidating the new pathway to design a ...
Minhyuk Choi, Hyeryeon Lee, Ki Chang Kwon, Seungwook Choi, Gyeongbo Kim, Nurul Hasanah, Ansoon Kim, Mun Seok Jeong, Eun Kyu Kim, Seungwoo Song   +9 more
wiley   +1 more source

The no-reflection regime of radar detection of cosmic ray air showers

New Journal of Physics, 2015
The ionization front of a cosmic ray air shower propagates in the atmosphere with almost the speed of light in vacuum, i.e., faster than a radio wave in the air. There can be no reflection of a radar signal from such a front.
M I Bakunov, A V Maslov, A L Novokovskaya, A Kryemadhi   +3 more
doaj   +1 more source

Generation of Seed Electrons by Extensive Air Showers, and the Lightning Inception Problem Including Narrow Bipolar Events

Journal of Geophysical Research: Atmospheres, 2019
Lightning streamers and leaders need thermal electrons to initiate, but free electrons are extremely rare in the wet air of a thundercloud. Here we analyze the probabilities that high electron densities occur in extensive air showers.
C. Rutjes, U. Ebert, S. Buitink, O. Scholten, T. Trinh   +4 more
semanticscholar   +1 more source

Halide‐Exchange Arrest Enables Reabsorption‐Free CsPbCl3/CsPbI3 Perovskite Core/Shell Nanocrystals

Advanced Science, EarlyView.
Achieving large Stokes shifts in perovskite nanocrystals is challenging due to halide mobility that disrupts stable core–shell structures. Using CdCl2 passivation, this work stabilizes CsPbCl3/CsPbI3 heterostructures, yielding a ≈1.2 eV Stokes shift, high quantum yield, and fast exciton transfer, enabling reabsorption‐free emitters for advanced ...
Hiba H. Karakkal, Saptarshi Chakraborty, Matteo L. Zaffalon, Jordi Llusar, Shehla Gul, Andrea Fratelli, Leonardo Poletti, Laura Lazzarini, Daniela Erminia Manno, Francesco Meinardi, Francesco Carulli, Francesca Rossi, Ivan Infante, Sergio Brovelli   +13 more
wiley   +1 more source

Measurements of Decoherence in Small Sea-Level Extensive Air Showers

Universe
A study is made of the progressive ‘decoherence’ of cosmic ray extensive air-shower particle-detector signals in small air showers through measurements of coincidence rates for pairs of detectors versus the detector separation. Measurements are made both
Roger Clay
doaj   +1 more source

Hybrid Detection of High Energy Showers in Urban Environments

Universe, 2018
The Astroneu array comprises 9 large charged particle detectors and 3 RF antennas arranged in three autonomous stations operating at the University Campus of the Hellenic Open University in the city of Patras.
Antonios Leisos, Stavros Nonis, Apostolos Tsirigotis, George Bourlis, Kostas Papageorgiou, Ioannis Gkialas, Ioannis Manthos, Spyros Tzamarias   +7 more
doaj   +1 more source