Gamma-Ray Energy Deposition in Silicon Detectors

1975 ◽  
Vol 22 (6) ◽  
pp. 2582-2585 ◽  
Author(s):  
N. A. Lurie ◽  
D. K. Steinman ◽  
L. Harris ◽  
J. P. Wondra
Keyword(s):  
Energy Deposition ◽  
Gamma Ray ◽  
Silicon Detectors

scholarly journals Neutron Star Mergers, Disks Around Black Holes, and Gamma-Ray Bursts

1997 ◽  
Vol 163 ◽  
pp. 384-387 ◽  
Author(s):  
H.-Th. Janka ◽  
M. Ruffert
Keyword(s):  
Neutron Stars ◽  
Energy Deposition ◽  
Gamma Ray ◽  
Three Dimensional ◽  
Energy Output ◽  
Central Black Hole ◽  
Order Of Magnitude ◽  
Hydrodynamical Simulations ◽  
Piecewise Parabolic ◽  
Favorable Conditions

AbstractWe have performed three-dimensional hydrodynamical simulations of the coalescence of binary neutron stars taking into account the emission and backreaction of gravitational waves in the Newtonian code based on the “Piecewise Parabolic Method”. The use of the physical equation of state (EOS) of Lattimer & Swesty (1991) allowed us to calculate the production of neutrinos. We evaluated our models for the efficiency of v⊽ annihilation in the surroundings of the coalescing neutron stars. The corresponding energy deposition prior to and during merging turned out to be 2–3 orders of magnitude too small to power a typical γ-ray burst (GRB) with an energy output of ~ (1051/4π) erg/sterad at cosmological distances. Analytical estimates of the subsequent evolution of the disk which possibly surrounds the central black hole showed that even under the most favorable conditions the energy provided by v⊽ → e−e+ → γγ falls short by at least an order of magnitude. We discuss the implications of our results and speculate about possibilities how v⊽ annihilation might still be a viable energy source for GRBs.

Gamma-Ray Energy Deposition Measurements in the Fast Breeder Blanket Facility

1986 ◽  
Vol 92 (4) ◽  
pp. 596-605 ◽  
Author(s):  
K. R. Koch ◽  
F. M. Clikeman ◽  
R. H. Johnson
Keyword(s):  
Energy Deposition ◽  
Gamma Ray

Perspectives of Silicon Detectors for X and Low Energy Gamma Ray Spectroscopy in Whole-Body Counting

1995 ◽  
Vol 61 (1-3) ◽  
pp. 149-152 ◽  
Author(s):  
P. Pihet ◽  
P. Berger ◽  
D. Franck ◽  
Ph. Berard ◽  
L. Le Noir de Carlan ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Low Energy ◽  
Whole Body ◽  
Silicon Detectors ◽  
Gamma Ray Spectroscopy ◽  
Energy Gamma ◽  
Body Counting ◽  
Whole Body Counting

MeV gamma ray detection algorithms for stacked silicon detectors

1993 ◽  
Vol 40 (4) ◽  
pp. 882-889 ◽  
Author(s):  
R.E. McMurray ◽  
G.S. Hubbard ◽  
P.F. Wercinski ◽  
R.G. Keller
Keyword(s):  
Gamma Ray ◽  
Silicon Detectors ◽  
Detection Algorithms

scholarly journals The Supernova/GRB Connection

2005 ◽  
Vol 192 ◽  
pp. 403-410 ◽  
Author(s):  
P. Höflich ◽  
D. Baade ◽  
A. Khokhlov ◽  
L. Wang ◽  
J.C. Wheeler
Keyword(s):  
Black Hole ◽  
Neutron Star ◽  
Central Region ◽  
Stellar Evolution ◽  
Axial Symmetry ◽  
Energy Deposition ◽  
Gamma Ray ◽  
Massive Stars ◽  
Core Collapse ◽  
Supernova Explosions

SummaryWe discuss the possible connection between supernova explosions (SN) and gamma-ray bursters (GRB) from the perspective of our current understanding of SN physics. Core collapse supernovae (SN) are the final stages of stellar evolution in massive stars during which the central region collapses, forms a neutron star (NS) or black hole, and the outer layers are ejected. Recent explosion scenarios assumed that the ejection is due to energy deposition by neutrinos into the envelope but detailed models do not produce powerful explosions. There is new and mounting evidence for an asphericity and, in particular, for axial symmetry in several supernovae which may be hard to reconcile within the spherical picture. The 3-D signatures are a key to understand core collapse supernovae and the GRB/SN connection. In this paper we study the effects and observational consequences of asymmetric explosions.

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