全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Jayashri Medhi , H. L. Duorah , A. G. Barua ...
来源:[J].Journal of Astrophysics and Astronomy(IF 0.336), 2016, Vol.37 (3)Springer
摘要:... In this study, we model the gamma ray emission from dark matter annihilation coming from the nearby dSph galaxies Draco, Segue 1, Ursa Minor and Willman 1, taking into account the contribution from prompt photons and photons produced from inverse Compton scattering off st...
作者:Varsha Chitnis
来源:[J].Journal of Astrophysics and Astronomy(IF 0.336), 2018, Vol.39 (4), pp.1-8Springer
摘要:Abstract(#br)HAGAR, an array of seven atmospheric Cherenkov telescopes located at Hanle in Himalayas, has been observing VHE gamma ray sources since September 2008. Taking advantage of the high altitude location, HAGAR could achieve an energy threshold of about 200 GeV. Several a...
作者:Muhammad Fayaz , Jameel-Un Nabi , Muhammad Majid
来源:[J].Astrophysics and Space Science(IF 2.064), 2017, Vol.362 (7)Springer
摘要:Gamma ray heating and neutrino cooling rates, due to weak interaction processes, on \(sd\) -shell nuclei in stellar core are calculated using the proton neutron quasiparticle random phase approximation theory. The recent extensive experimental mass compilation of Wang et al. (Ch...
作者:Hakan Çınar , Suna Altundaş , Necati Çelik ...
来源:[J].Arabian Journal of Geosciences(IF 0.74), 2017, Vol.10 (19)Springer
摘要:The present work utilizes in situ gamma ray spectrometric measurement data to map the surface geology of Sarıhan Granitoid and its surrounding area. The study area comprises three different lithological units, namely, Hozbirikyayla Formation (limestone and sandy limestones), Sa...
作者:I. Akkurt , K. Günoğlu , A. Çalik ...
来源:[J].Bulletin of Materials Science(IF 0.584), 2014, Vol.37 (5), pp.1175-1179Springer
摘要:Abstract(#br)Gamma ray attenuation coefficients of metal matrix composites have been investigated. For this purpose, the linear attenuation coefficients of composites containing boron carbide (B 4 C) at different rates have been measured using a gamma spectrometer that contai...
作者:Badawi Mohamed S.
来源:[J].Nuclear Technology and Radiation Protection(IF 1), 2015, Vol.30 (4), pp.249-259DOAJ
摘要:When using gamma ray spectrometry for radioactivity analysis of environmentalsamples (such as soil, sediment or ash of a living organism), relevant linearattenuation coefficients should be known - in order to calculateself-absorption in the sample bulk. This parameter is addition...
作者:Pantea Davoudifar , S. Jalil Fatemi
来源:[J].Journal of Astrophysics and Astronomy(IF 0.336), 2011, Vol.32 (3), pp.359-370Springer
摘要:Abstract(#br)The origin of extragalactic diffuse gamma ray is not accurately known, especially because our suggestions are related to many models that need to be considered either to compute the galactic diffuse gamma ray intensity or to consider the contribution of other extraga...
作者:Vujisić Miloš , Stanković Koviljka , Vasić Aleksandra
来源:[J].Nuclear Technology and Radiation Protection(IF 1), 2009, Vol.24 (1), pp.61DOAJ
摘要:This paper compares the reliability of standard commercial Erasable Programmable Read Only Memory (EPROM) and Electrically Erasable Programmable Read Only Memory (E2PROM) components exposed to gamma rays. The results obtained for CMOS-based EPROM (NM27C010) and E2PROM (NM93CS46) ...
作者:S V Damle , R R Daniel , P J Lavakare
来源:[J].Pramana(IF 0.562), 1976, Vol.7 (5), pp.355-368Springer
摘要:Abstract(#br)An experiment to measure energetic neutrons and gamma rays in space was launched in the first Indian scientific satellite, Aryobhata , on April 19, 1975. From this experiment, the first measurements in space of the Earth’s albedo fiux of neutrons of energy betwee...
作者:Pijushpani Bhattacharjee , Nayantara Gupta
来源:[J].Pramana(IF 0.562), 2004, Vol.62 (3), pp.789-792Springer
摘要:Abstract(#br)Gamma ray bursts (GRBs) have been proposed as one possible class of sources of the ultrahigh energy cosmic ray (UHECR) events observed up to energies ≳ 10 20 eV. The synchrotron radiation of the highest energy protons accelerated within the GRB source should p...

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