gamma ray
Gamma-ray satellites Fermi Gamma-ray Space Telescope
... Test how gamma-ray photons of different energy interact in the tracker / calorimeter. http://fermi.sonoma.edu/multimedia/latsim/simulator.php.[r] ...
46
The Evaluated Gamma-ray Activation File (EGAF)
... Evaluated Gamma-ray Activation File (EGAF), a new database of prompt and delayed neutron capture γ ray cross sections, has been prepared as part of an International Atomic Energy Agency (IAEA) ...
6
Toward an Understanding of the Progenitors of Gamma Ray Bursts
... Given the energetics, burst rate and implied fluences, the coalescence, or merger, of two bound neutron stars (NSs) is the leading mechanism whereby gamma-ray bursts are thought to arise (Paczy´ nski 1986; ...
196
Dark Matter Signals in the gamma-ray sky
... use gamma-ray backgrounds and discrete sources, as we know them today, can account for the large majority of the detected gamma-ray emission from the Galactic ...
10
Hard x-ray polarimeter for gamma-ray bursts and solar flares
... In recent years, largely as a result of the observation of several X-ray, optical and radio afterglows, there has developed a growing consensus that classical γ-ray bursts (GRBs)are at cosmological ...
13
The environments of the most energetic Gamma Ray bursts
... Long gamma-ray bursts (LGRBs) are well established as core-collapse events following the deaths of massive stars, due to their close proximity to very young star forming regions (Fruchter et ...
46
Highlights of GeV gamma-ray astronomy
... of gamma-ray sources seen by the LAT includes some High-Mass X-ray Binary (HMXB) systems, where the variation in the gamma-ray flux originates from the orbital motion of the ...GeV ...
6
High energy gamma ray imaging
... original gamma ray is absorbed in the ...the gamma ray, but other scintillations are located some distance ...a gamma ray do not present the same problem as they may be ...
232
Polarimetry and Photometry of Gamma-Ray Bursts with RINGO2
... of Gamma-Ray Bursts (GRBs), these cosmic explosions remain puzzling, par- ticularly regarding the origin and role of magnetic fields in driving the explosion (Granot et ...
19
Southern hemisphere gamma ray blazars
... The spectral energy distribution of blazars is dominated by two components, one at low energies, often peaking at optical wavelengths, and the other at X-ray and gamma-ray wave- lengths (Fossati et ...
147
GRAPE: a balloon-borne gamma-ray polarimeter
... The Gamma-RAy Polarimeter Experiment (GRAPE) is a concept for an astronomical hard X-ray Compton polarimeter operating in the 50 – 500 keV energy ...as gamma-ray bursts and solar ...
14
The Gamma Ray Transmission Factor of Spent Fuel
... Abtract: Passive non-destructive methodswere developed for determining total U, 235 U and total Pu content of damaged spent fuel. The methods based on correlations between 137 Cs and U, Pu content and using referent ...
5
Peak Energy Correlations for Gamma Ray Bursts
... DOI: 10.4236/jamp.2017.58124 1520 Journal of Applied Mathematics and Physics [19] Zhang, B. and Mészáros, P. (2002) An Analysis of Gamma-Ray Burst Spectral Break Models. The Astrophysical Journal , 581, ...
7
Gamma ray astronomy in the low energy range
... While X-ray astronomy has flourished in terms of observational results in recent years, the development of gamma ray astronomy as a tool for probing the universe, has been greatly restri[r] ...
193
Constraining the progenitors of short gamma ray bursts
... As has been discussed extensively throughout this thesis, gamma-ray bursts can be nominally split into two categories of long and short GRBs. The importance of this distinction lies in the fact that these ...
178
Medium-Energy Gamma-Ray Astrophysics with the 3-DTI Gamma-Ray Telescope
... scattered gamma ray in D2, is sufficient to determine the energy of the incident gamma ray and the Compton scattering angle ϕ , ...energy gamma-ray telescope [2], is one concept ...
7
The analysis of multichannel airborne gamma-ray spectra
... For multichannel airborne gamma-ray spectrometry the situation is more complex, since the variation in spectral shape and intensity with survey height and source diameter are now require[r] ...
239
On The Origin Of Unidentified EGRET Gamma-Ray Sources
... unidentified gamma-ray sources and radio pulsars are expected – and consequently found ...established gamma-ray pulsars, so no new physical assumptions are implicated from such ...in ...
15
Prompt Gamma-ray Imaging for Small Animals
... Prompt gamma rays are emitted during a neutron capture reaction, which is the dominant neutron process in a low energy ...prompt gamma rays. These prompt gamma rays are in energies that are ...
129
Gamma ray studies in ²⁷Al and ²⁹Al
... the gamma rays in c o i n cidence with this group are only ...the gamma ray ...with gamma rays shows an appropriate decrease in the intensity of this ...
203