Results 1 to 10 of about 3,760,753 (293)

The Gamma-ray Window to Intergalactic Magnetism [PDF]

open access: yesUniverse, 2021
One of the most promising ways to probe intergalactic magnetic fields (IGMFs) is through gamma rays produced in electromagnetic cascades initiated by high-energy gamma rays or cosmic rays in the intergalactic space.
Rafael Alves Batista, Andrey Saveliev
doaj   +2 more sources

Gamma rays excited radioluminescence tomographic imaging [PDF]

open access: yesBioMedical Engineering OnLine, 2018
Background Radionuclide-excited luminescence imaging is an optical radionuclide imaging strategy to reveal the distributions of radioluminescent nanophosphors (RLNPs) inside small animals, which uses radioluminescence emitted from RLNPs when excited by ...
Xuanxuan Zhang   +7 more
doaj   +2 more sources

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

First Detection of sub-PeV Diffuse Gamma Rays from the Galactic Disk: Evidence for Ubiquitous Galactic Cosmic Rays beyond PeV Energies. [PDF]

open access: yesPhysical Review Letters, 2021
We report, for the first time, the long-awaited detection of diffuse gamma rays with energies between 100 TeV and 1 PeV in the Galactic disk. Particularly, all gamma rays above 398 TeV are observed apart from known TeV gamma-ray sources and compatible ...
M. Amenomori   +94 more
semanticscholar   +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

Metabolism and signaling crosstalk in glioblastoma progression and therapy resistance

open access: yesMolecular Oncology, EarlyView., 2023
Glioblastoma is one of the most lethal human cancers with no effective treatment nowadays. Here, we review the increasing amount of evidence supporting the connection between cell signaling deregulation and metabolic reprogramming as a key event in glioblastoma resistance to cancer therapy.
Laura Zarzuela   +2 more
wiley   +1 more source

Peta–electron volt gamma-ray emission from the Crab Nebula [PDF]

open access: yesScience, 2021
High-energy photons from the Crab Nebula The Crab Nebula contains a pulsar that excites the surrounding gas to emit high-energy radiation. The combination of the pulsar's youth and nearby location makes the nebula the brightest gamma-ray source in the ...
Z. Cao   +270 more
semanticscholar   +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

Revealing x-ray and gamma ray temporal and spectral similarities in the GRB 190829A afterglow. [PDF]

open access: yesScience, 2021
Gamma-ray bursts (GRBs), which are bright flashes of gamma rays from extragalactic sources followed by fading afterglow emission, are associated with stellar core collapse events.
H. Abdalla   +237 more
semanticscholar   +1 more source

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

Home - About - Disclaimer - Privacy