Results 41 to 50 of about 5,819 (195)
Superluminous supernovae: No threat from Eta Carinae [PDF]
, 2007 Recently Supernova 2006gy was noted as the most luminous ever recorded, with a total radiated energy of ~10^44 Joules. It was proposed that the progenitor may have been a massive evolved star similar to eta Carinae, which resides in our own galaxy at a ...
Adrian L. Melott +5 more
core +1 more source
Evaluation of the shielding parameters of alkaline earth based phosphate glasses using MCNPX code
Results in Physics, 2019 Glass systems of composition 16XO–3Al2O3–6CuO–20Na2O–55P2O5 (where X = Sr, Ca, Mg and Ba mol%) have been investigated to check its potential utilize as gamma ray shielding material. Different shielding quantities namely mass attenuation coefficient (µ/ρ),
O. Agar +7 more
doaj +1 more source
Nuclear Engineering and Technology, 2022 The mass attenuation coefficients (μm) of polyethylene glycol (PEG) of different molecular weights (1000–200,000) were measured using single-beam photon transmission.
H. Akhdar, M.W. Marashdeh, M. AlAqeel
doaj +1 more source
Photon Shielding Features of Quarry Tuff
EPJ Web of Conferences, 2017 Cantera is a quarry tuff widely used in the building industry; in this work the shielding features of cantera were determined. The shielding characteristics were calculated using XCOM and MCNP5 codes for 0.03, 0.07, 0.1, 0.3, 0.662, 1, 2, and 3 MeV ...
Vega-Carrillo Hector Rene +5 more
doaj +1 more source
Results in Physics, 2019 Mass attenuation coefficient (μt) of some boron containing resources in China were investigated in the paper at 0.001–20 MeV through XCOM and Geant4. What’s more, half value thickness layer (HVL), mean free path (MFP), effective atomic number (Zeff) and ...
M.G. Dong +4 more
doaj +1 more source
Photon elastic scattering simulation: validation and improvements to Geant4
, 2012 Several models for the simulation of photon elastic scattering are quantitatively evaluated with respect to a large collection of experimental data retrieved from the literature.
Batic, Matej +3 more
core +1 more source
Results in Physics, 2019 We propose the use of X-ray diffraction associated with Rietveld Method (RM-XRD) for soil components quantification aiming at evaluating photon attenuation parameters (total and partial attenuation coefficients (µ), effective atomic number (Zeff ...
L.F. Pires +3 more
doaj +1 more source
Globular Clusters and Dark Satellite Galaxies through the Stream Velocity
, 2014 The formation of purely baryonic globular clusters with no gravitationally bound dark matter is still a theoretical challenge. We show that these objects might form naturally whenever there is a relative stream velocity between baryons and dark matter ...
Naoz, Smadar, Narayan, Ramesh
core +1 more source
Nuclear Engineering and Technology, 2023 We determined the radiation shielding properties for 10CaO–xPbO–(90-x) deteriorated silica gel (DSG) glass system (x = 20, 25, 30, 35, 40, and 45 mol.%).
P. Sopapan +7 more
doaj +1 more source
, 2017 One of the challenges for the robotics community is to deploy robots which can reliably operate in real world scenarios together with humans. A crucial requirement for legged robots is the capability to properly balance on their feet, rejecting external ...
Dafarra, Stefano +2 more
core +1 more source