Results 1 to 10 of about 157,635 (194)

Simulation of possibility of detecting gamma rays emitted from crab by Alborz-I array [PDF]

open access: yesIranian Journal of Physics Research, 2021
Crab Nebula, as an active source of high energy gamma-rays, is a common standard source used for calibrating different gamma-ray telescopes and observatories.
Y Pezeshkian, A Laletaheri
doaj   +1 more source

Gamma Ray Spectrum by Software Methods for Radioactive Waste

open access: yesIraqi Journal of Industrial Research, 2023
The requirements of NTD (Neglected Tropical Diseases) and technological regulations for the operation of NPP (Nuclear Power Plant) power units (NP-001-97 (OPB-88/97), NP-082-07) define the requirements for monitoring the specific activity of iodine-131 (
M. W. Alhamd   +3 more
doaj   +1 more source

ON GAMMA-RAY BURSTS [PDF]

open access: yesThe Eleventh Marcel Grossmann Meeting, 2008
(Shortened) We show by example how the uncoding of Gamma-Ray Bursts (GRBs) offers unprecedented possibilities to foster new knowledge in fundamental physics and in astrophysics. After recalling some of the classic work on vacuum polarization in uniform electric fields by Klein, Sauter, Heisenberg, Euler and Schwinger, we summarize some of the efforts ...
R. RUFFINI   +14 more
openaire   +6 more sources

Bulk Density Response and Experimental Study of Pulsed Neutron-Gamma Density Logging

open access: yesFrontiers in Earth Science, 2022
The pulsed neutron-gamma density logging technique is used to measure the bulk density of formations based on the detection of gamma rays from the inelastic scattering of neutrons in the formations.
Hu Wang   +6 more
doaj   +1 more source

Gamma-Ray Localization of Terrestrial Gamma-Ray Flashes [PDF]

open access: yesPhysical Review Letters, 2010
5 pages, 4 figures, 1 table, available at http://prl.aps.org/abstract/PRL/v105/i12 ...
Marisaldi M   +61 more
openaire   +4 more sources

Gamma-Ray Bursts [PDF]

open access: yesScience, 2012
Stellar Explosions Stars that are born with masses greater than eight times that of the Sun end their lives in luminous explosions known as supernovae. Over the past decade, access to improved sky surveys has revealed rare types of supernovae that are much more luminous than any of those that were known before.
Neil Gehrels, Peter Mészáros
openaire   +4 more sources

On the Search for the Galactic PeVatrons by Means of Gamma-Ray Astronomy

open access: yesUniverse, 2022
Cosmic rays are ultra-relativistic particles that slam into the atmosphere from all directions in the sky. Gamma rays emitted when cosmic rays interact with Galactic gas and radiation fields are a powerful tool to investigate their origin. Many candidate
Sabrina Casanova
doaj   +1 more source

Gamma-ray astrophysics [PDF]

open access: yesThe European Physical Journal Plus, 2018
Accepted for publication on EPJ ...
De Angelis A., Mallamaci M.
openaire   +3 more sources

The ALPACA experiment: The project of the first sub-PeV gamma-ray observation in the southern sky

open access: yesSciPost Physics Proceedings, 2023
The ALPACA experiment is a project aiming to observe sub-PeV gamma rays for the first time in the southern hemisphere. The main goal of ALPACA is to identify PeVatrons, the accelerators of Galactic PeV cosmic rays, by observing sub-PeV pion-decay gamma ...
Teruyoshi Kawashima for the ALPACA Collaboration
doaj   +1 more source

Gamma-ray binaries [PDF]

open access: yesProceedings of Multifrequency Behaviour of High Energy Cosmic Sources - XIII — PoS(MULTIF2019), 2020
Conference Proceedings: "Multifrequency Behaviour of High Energy Cosmic Sources" - XIII ...
Denys Malyshev, Maria Chernyakova
openaire   +3 more sources

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